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Table of Contents
January-March 2017
Volume 11 | Issue 1
Page Nos. 1-274
Online since Thursday, February 16, 2017
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EDITORIAL
Clinical considerations of intrapulpal anesthesia in pediatric dentistry
p. 1
Saravana Karthikeyan Balasubramanian, Velmurugan Natanasabapathy, Divya Vinayachandran
DOI
:10.4103/aer.AER_11_17
PMID
:28298746
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REVIEW ARTICLES
Benefits and pitfalls of cadavers as learning tool for ultrasound-guided regional anesthesia
p. 3
Chhavi Sawhney, Sanjeev Lalwani, Bikash Ranjan Ray, Sumit Sinha, Abhyuday Kumar
DOI
:10.4103/0259-1162.186607
PMID
:28298747
Ultrasound-guided regional anesthesia (UGRA), like other basic skills, should be learnt in a simulation laboratory before performing on the patient. Cadavers provide an ideal tool for learning sonoanatomy and skills required for performing UGRA. On the basis of preservation technique used, the cadavers can be formalin embalmed cadavers, Thiel cadavers (soft cadavers), and fresh frozen cadavers. We compared three types of cadavers for performing ultrasound-guided upper and lower limb blocks. We observed that fresh frozen and Thiel cadavers were less smelling and had more realistic appearance as compared to formalin embalmed cadavers. It was seen that Thiel cadavers were more flexible and hence, rotation of neck, shoulder and knee was easier. Although images seen in most cadavers were comparable with live subjects but, Thiel cadavers provided more realistic model.
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Anesthesia for endoscopic third ventriculostomy in children
p. 7
MC Rajesh
DOI
:10.4103/0259-1162.186618
PMID
:28298748
Neuroendoscopy has established itself as a routine neurosurgical procedure in pediatric population. To have an uneventful smooth perioperative course, it is important for anesthesiologist to know about the key steps, possible complications, and specific anesthetic requirements. Among neuroendoscopies, endoscopic third ventriculostomy is the commonly performed one.
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Perioperative considerations and management of patients receiving anticoagulants
p. 10
Safiya Imtiaz Shaikh, R Vasantha Kumari, Ganapati Hegade, M Marutheesh
DOI
:10.4103/0259-1162.179313
PMID
:28298749
Anticoagulants remain the primary strategy for the prevention and treatment of thrombosis. Unfractionated heparin, low molecular weight heparin (LMWH), fondaparinux, and warfarin have been studied and employed extensively with direct thrombin inhibitors typically reserved for patients with complications or those requiring interventions. Novel oral anticoagulants have emerged from clinical development and are expected to replace older agents with their ease to use and more favorable pharmacodynamic profiles. Increasingly, anesthesiologists are being requested to anesthetize patients who are on some form of anticoagulants and hence it is important to have sound understanding of pharmacology, dosing, monitoring, and toxicity of anticoagulants. We searched the online databases including PubMed Central, Cochrane, and Google Scholar using anticoagulants, perioperative management, anesthetic considerations, and LMWH as keywords for the articles published between 1994 and 2015 while writing this review. In this article, we will review the different classes of anticoagulants and how to manage them in the perioperative settings.
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ORIGINAL ARTICLES
Comparison of fluoroscopic guided transforaminal epidural injections of steroid and local anaesthetic with conservative management in patients with chronic lumbar radiculopathies
p. 17
Nandita Mehta, Misbah Salaria, AQ Salaria
DOI
:10.4103/0259-1162.186868
PMID
:28298750
Background:
Chronic lumbar radiculopathy is a common medical problem and the treatment modalities used over years have been many ranging from conservative or symptomatic management to open decompression surgery. This study was aimed at to compare two modalities of treatment, i.e., conservative and lumbar transforaminal epidural steroid injections (TFESIs).
Materials and Methods:
A total of 120 patients of American Society of Anesthesiology class - (a healthy patient or a patient with mild systemic disease) were randomized to two groups. Group C (
n
= 60) were managed conservatively with bed rest, analgesics, and physiotherapy. Group T (
n
= 60) received lumbar TFESIs with methylprednisolone 40 mg with 2 ml bupivacaine (0.5%). Measurements using visual analog scale (VAS) were taken before treatment and at various time intervals after the start of treatment.
Results:
There was no statistically significant difference regarding the demographic characteristics of both groups. The VAS scores were less and statistically significant in Group T after 30 min postinjection, at the 2
nd
week and after 1 month. Recovery rate of straight leg raise test was found to be 98% in those treated with TFESI. The Group T had significantly better patient satisfaction score and additionally there was drug dose intake reduction before and after the treatment.
Conclusion:
Patients treated with fluoroscopic-guided TFESI have better pain relief, quality-of-life, and less analgesic requirement than those managed conservatively.
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Comparative study of two laryngeal mask airways: Proseal laryngeal mask airway and supreme laryngeal mask airway in anesthetized paralyzed adults undergoing elective surgery
p. 23
Ravneet Kaur Gill, Abhijit Tarat, Debagopal Pathak, Suneeta Dutta
DOI
:10.4103/0259-1162.177184
PMID
:28298751
Context:
Supraglottic airway devices can act as an alternative to endotracheal intubation in both normal and difficult airway. LMA Proseal (P-LMA) and LMA Supreme (S-LMA) alongwith acting as effective ventilating device, provide port for gastric drainage.
Aim:
The objective of this study was to compare the two devices for effective ventilation and complications.
Setting and Design:
A prospective, randomized, single-blinded study was conducted in a tertiary care teaching hospital. Methods: 100 patients of ASA grade I–II undergoing elective surgery under general anaesthesia were included after ethical committee clearance and written consent. Patients were randomly allocated size 4 P-LMA (Group P) or S-LMA (Group S) (50 patients in each group). Insertion attempt, insertion time, oropharyngeal leak pressure (OLP) and complications were compared.
Results:
There was no difference demographically. The first insertion attempts were successful in 92% with P-LMA and 96% with S-LMA. Insertion time was faster in S-LMA. The mean OLP was 24.04 cmH2O in Group P and 20.05 cmH2O in Group S. Complications were cough, mild blood staining.
Conclusion:
Both can act as an effective ventilatory devices. But where LMA Proseal provides a more effective glottic seal by having a greater OLP, single use LMA Supreme provides acceptable glottic seal with easier and faster insertion, therefore, it can be accepted as better alternative to LMA Proseal.
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Quality of labor epidural analgesia and maternal outcome with levobupivacaine and ropivacaine: A double-blinded randomized trial
p. 28
T Senthil Kumar, P Rani, VR Hemanth Kumar, Sunita Samal, S Parthasarathy, M Ravishankar
DOI
:10.4103/0259-1162.194573
PMID
:28298752
Background:
Quality of labor analgesia plays a vital role in the maternal outcome. Very few literature are available analyzing the quality of epidural labor analgesia.
Aim:
The aim of this study was to compare the effectiveness of 0.1% levobupivacaine and 0.1% ropivacaine with fentanyl as an adjuvant for epidural labor analgesia in terms of onset, duration, quality of analgesia, and degree of motor blockade.
Methodology:
Sixty nulliparous parturients, with singleton uncomplicated pregnancy, were recruited by continuous sampling. Parturients were randomized to receive either levobupivacaine 0.1% or ropivacaine 0.1% with 2 μg/ml fentanyl as an intermittent epidural bolus. The epidural analgesia was initiated with 12 ml of study drug solution in the active stage of labor (cervix 3 cm dilated). Demand bolus was given whenever the visual analog scale (VAS) score >3. Onset, duration, and quality of analgesia and degree of motor blockade were analyzed. Maternal outcome was evaluated in terms of mode of delivery, duration of labor, and assisted vaginal delivery.
Statistical Analysis:
All the data were recorded in Microsoft Office Excel. Statistical analysis was carried out using SPSS version 19.0 (IBM SPSS, USA) software with Regression Modules installed. Descriptive analyses were reported as mean and standard deviation of continuous variables.
Results:
The mean onset of analgesia was shorter in ropivacaine (21.43 ± 2 min) than in levobupivacaine group (23.57 ± 1.71 min) (
P
= 0.000). Duration of analgesia was shorter in ropivacaine (60 ± 14 min) than levobupivacaine (68 ± 11 min) (
P
= 0.027). Levobupivacaine produced a better quality of analgesia in terms of not perceiving pain and uterine contraction during labor analgesia but was associated with 37% incidence of instrumental delivery. Duration of labor and rate of cesarean section were comparable between the groups.
Conclusion:
Quality of analgesia in labor epidural was superior to levobupivacaine but was associated with higher incidence of instrumental vaginal delivery.
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A prospective randomized trial comparing dexmedetomidine and midazolam for conscious sedation during oocyte retrieval in an
in vitro
fertilization program
p. 34
Ali Mohamed Ali Elnabtity, Mohamed Fouad Selim
DOI
:10.4103/0259-1162.167831
PMID
:28298753
Background:
Various sedative and analgesic techniques have been used for pain relief during oocyte retrieval which is the most painful part of
in vitro
fertilization (IVF) procedures.
Aim:
This study aimed at comparing dexmedetomidine and midazolam for conscious sedation in women undergoing transvaginal oocyte retrieval during an IVF program.
Settings and Design:
Prospective randomized double-blinded comparative study.
Patients and Methods:
Fifty-two patients undergoing oocyte retrieval in their first IVF cycle were randomly allocated into two equal groups. The intervention started with giving fentanyl1 mcg/kg intravenous (IV) followed by paracervical block in both groups. Then, subjects in group (D) received dexmedetomidine at a loading dose of 1 μg/kg IV over 10 min followed by 0.5 μg/kg/h infusion until Ramsay Sedation Scale (RSS) reached 3–4. Patients in group (M) received a loading dose of midazolam 0.06 mg/kg IV over 10 min followed by 0.5 mg incremental doses until RSS reached 3–4.
Statistical Analysis:
Statistical analysis was performed using SPSS program version 19 and EP 16 program.
Results:
Visual analog scale scores significantly decreased in group D than group M at 5 and 10 min during the procedure (
P
= 0.03 and 0.01, respectively), and at 20 min during postanesthesia care unit (PACU) time (
P
= 0.04). Intraoperative rescue sedation by propofol and postoperative rescue analgesia by acetaminophen showed a highly significant decrease (
P
< 0.01) in group D compared with group M. Furthermore, the time of PACU stay was significantly less (
P
< 0.01) in group D (49.03 ± 12.8 min) compared to group M (62.5 ± 18.34 min). Although significant bradycardia was noted in group D (23% of patients) during the procedure (
P
= 0.02), no cases were reported in group M. Patient satisfaction was significantly higher in group D (
P
< 0.1).
Conclusion:
Dexmedetomidine is an effective analgesic alternative to midazolam during oocyte retrieval for IVF. It offered not only a shorter PACU stay without significant side effects, but also better overall patient satisfaction scores.
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Perineural nalbuphine in ambulatory upper limb surgery: A comparison of effects of levobupivacaine with and without nalbuphine as adjuvant in supraclavicular brachial plexus block – A prospective, double-blinded, randomizedcontrolled study
p. 40
Anjan Das, Sandip RoyBasunia, Anindya Mukherjee, Hirak Biswas, Rajasree Biswas, Tapobrata Mitra, Surajit Chattopadhyay, Subrata Kumar Mandal
DOI
:10.4103/0259-1162.200225
PMID
:28298754
Background and Aims:
Various opioid additives have been trialed to prolong brachial plexus block. We evaluated the effect of adding nalbuphine hydrochloride to levobupivacaine for supraclavicular brachial plexus blockade. The primary end-points were the onset and duration of sensory and motor blocks and duration of analgesia.
Materials and Methods:
Seventy-eight patients (aged 25–45 years) posted for ambulatory forearm and hand surgery under supraclavicular brachial plexus block were divided into two equal groups (Groups LN and LC) in a randomized, double-blind fashion. In Group LN (
n
= 39), 30 ml 0.5% levobupivacaine + 10 mg (diluted in 2 ml 0.9% saline) nalbuphine hydrochloride, and in Group LC (
n
= 39), 30 ml 0.5% levobupivacaine + 2 ml normal saline (0.9%) were administered in supraclavicular block. Sensory and motor block onset times and block durations, time to first analgesic use, total analgesic need, postoperative visual analog scale (VAS), hemodynamics, and side effects were recorded for each patient.
Results:
Although with similar demographic profile and block (sensory and motor) onset time, sensory and motor block duration and time to first analgesic use were significantly longer and the total need for rescue analgesics was lower in Group LN (
P
< 0.05) than Group LC. Postoperative VAS value at 24 h was significantly lower in Group LN (
P
< 0.05). Intraoperative hemodynamics was comparable between two groups, and no any appreciable side effect was noted throughout the study period.
Conclusion:
It can be concluded that adding nalbuphine hydrochloride to supraclavicular brachial plexus block increases the sensory and motor block duration and time to first analgesic use, and decreases total analgesic use with no side effects.
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Attenuation of cardiovascular response to direct laryngoscopy and intubation, comparative study of lignocaine, nifedipine, and placebo during general anesthesia
p. 47
Venkata Sesha Sai Krishna Manne, Venkata Raghavendra Paluvadi
DOI
:10.4103/0259-1162.200227
PMID
:28298755
Background/Objective:
The purpose of the study was to compare the attenuation of cardiovascular response to direct laryngoscopy and intubation using lignocaine, nifedipine, and placebo during general anesthesia.
Materials and Methods:
This prospective study was done in sixty patients undergoing noncardiac surgeries of American Society of Anesthesiologists health status Class I and II between the age groups of 18–60 years. They were randomly divided into three groups of 20 each (lignocaine group, nifedipine group, and placebo group) and cardiovascular response (heart rate [HR] and blood pressure [BP]) to direct laryngoscopy and intubation were compared.
Results:
The rise in HR and BP was most significant in the placebo group and insignificant in lignocaine and nifedipine groups.
Conclusion:
Nifedipine is effective than lignocaine in attenuating hypertensive response, and lignocaine is effective in attenuating rate pressure product than nifedipine.
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Comparison of postoperative pain after epidural anesthesia using 0.5%, 0.75% ropivacaine and 0.5% bupivacaine in patients undergoing lower limb surgery: A double-blind study
p. 52
Tripat Kaur Bindra, Rajvinder Singh, Ruchi Gupta
DOI
:10.4103/0259-1162.200230
PMID
:28298756
Background:
Ropivacaine (S (-)-1-propyl-2”, 6”; pipecoloxylidide hydrochloride) a newer long-acting amide local anesthetic has various clinical and pharmacokinetic advantages over bupivacaine.
Aims:
The aim of this study is to compare the onset as well as the duration of sensory block, hemodynamic variables, and postoperative analgesia with 0.5%, 0.75% ropivacaine and 0.5% bupivacaine after epidural anesthesia for lower limb orthopedic surgery.
Patients and Methods:
Sixty American Society of Anesthesiologists I and II patients scheduled for lower limb orthopedic surgery were enrolled into this randomized, double-blind study. Epidural block was obtained with 15 ml of 0.5% ropivacaine (Group I), 15 ml of 0.75% ropivacaine (Group II), and 15 ml of 0.5% bupivacaine (Group III). The onset time, duration, and maximum level of sensory blockade achieved, as well as hemodynamic parameters and any side effects, were noted and treated accordingly. Postoperative monitoring for pain by visual analog scale (VAS) was done every 2 hourly for 24 h and transient neurological symptoms for 72 h.
Statistical Analysis:
Chi-square test for nonparametric data and ANOVA for parametric data.
Results:
Demographic characteristics were similar among groups. The onset of sensory block varied from 22.35 ± 2.74 min (mean ± standard deviation [SD]) in Group I, 16.95 ± 2.96 min (mean ± SD) in Group II, and 19.70 ± 2.25 min (mean ± SD) in Group III. The mean duration of analgesia in Group III (157 ± 14.90 min)was comparable to Group II (149 ± 16.51 min) but it was significantly more than Group I (141.5 ± 17.55 min). Postoperatively, VAS scores were higher in Group I patients who required more number of postoperative epidural top-ups with tramadol. Adverse effects were noted and treated accordingly. There was no incidence of transient neurological symptoms postoperatively.
Conclusion:
Both ropivacaine and bupivacaine provided effective epidural anesthesia for lower limb surgery. Postoperative pain was less with 0.5% bupivacaine and 0.75% ropivacaine as compared to 0.5% ropivacaine.
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Low dose dexmedetomidine attenuates hemodynamic response to skull pin holder application
p. 57
Shwethashri Ramaprasannakumar Kondavagilu, Vinayak Seenappa Pujari, Mohan V. R. Chadalawada, Yatish Bevinguddaiah
DOI
:10.4103/0259-1162.200229
PMID
:28298757
Background:
The application of skull pin holder elicits an adverse hemodynamic response that can be deleterious; there are many drugs that have been used to attenuate this response. We have conducted this study to evaluate the efficacy of intravenous (i.v.) dexmedetomidine on attenuation of hemodynamic responses to skull pin head holder application and to compare the effectiveness of two doses of i.v. dexmedetomidine (1 μg/kg and 0.5 μg/kg bolus).
Materials and Methods:
Ninety American Society of Anesthesiologists physical Status I–III patients undergoing craniotomy were randomized into three groups of thirty each. After intubation, patients in Group A received 1 μg/kg of i.v. dexmedetomidine, Group B received 0.5 μg/kg of i.v. dexmedetomidine, whereas Group C received an equivalent quantity of normal saline. Hemodynamic parameters were monitored regularly after skull pin insertion.
Results:
There was no significant difference in the monitored hemodynamic parameters among the three groups from baseline until intubation. Heart rate (HR) and mean arterial pressure (MAP) increased significantly at skull pin insertion and subsequent points in Group C, whereas the values decreased in Groups A and B (
P
< 0.05). Patients in Group A showed a higher and sustained attenuation of MAP. Patients in Group C had a higher incidence of tachycardia and hypertension requiring additional measures to attenuate the response.
Conclusions:
Dexmedetomidine in either dosage (1 μg/kg or 0.5 μg/kg) was effective in attenuating hemodynamic response to skull pin insertion. Dexmedetomidine in doses of 0.5 μg/kg was as effective in attenuating the HR and MAP response to skull pin insertion as compared to a dose of 1 μg/kg.
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Comparison of analgesic efficacy of dexmedetomidine and midazolam as adjuncts to lignocaine for intravenous regional anesthesia
p. 62
Bharti Gupta, Ravinder Kumar Verma, Sudershan Kumar, Geeta Chaudhary
DOI
:10.4103/0259-1162.200245
PMID
:28298758
Background:
Intravenous regional anesthesia (IVRA) is safe, technically simple, and cost-effective technique compared to general anesthesia with success rates of 94–98% for upper and lower limb surgeries. The main disadvantage of this procedure is its limited duration for surgery, lack of postoperative analgesia, and tourniquet pain. To overcome this disadvantage, various adjuvants to lignocaine have been studied from time to time.
Aim:
To compare the analgesic efficacy of dexmedetomidine and midazolam as adjuncts to lignocaine for IVRA for forearm and hand surgeries.
Setting and Design:
The study was conducted by the Department of Anaesthesia of Medical College and patients posted for elective as well as the emergency forearm and hand surgeries were included in the study. It was a prospective comparative study.
Materials and Methods:
Sixty patients of either sex belonging to the American Society of Anesthesiologists Class I and II, in the age range of 18–65 years, scheduled for upper limb orthopedic surgery, either elective or emergency, were included in the study. All patients were administered IVRA in this prospective, double-blind, randomized study. Patients enrolled in the study were randomly divided into two groups of thirty each. Group M-received 40 ml of 0.5% lignocaine with midazolam 50 μg/kg and Group D-received 40 ml of 0.5% lignocaine with dexmedetomidine 1 μg/kg. Time of onset of sensory block, duration of analgesia, total dose of fentanyl given, intraoperative blood pressure, oxygen saturation, heart rate, postoperative analgesia, and adverse effects were recorded and compared between the groups.
Statistical Analysis Used:
The statistical evaluation was performed using SPSS version 17.0 software. All values were calculated with a 95% confidence interval. The parameters were expressed as mean ± standard deviation and
t
-test was used for comparing demographic and clinical data. For comparisons,
P
< 0.05 was considered statistically significant.
Results:
Mean duration of analgesia was 93 ± 28 min in dexmedetomidine group and 84 ± 28 min in midazolam group, and onset of sensory block was comparable in both groups.
Conclusion:
Dexmedetomidine and midazolam, when used as adjuvants to lignocaine for IVRA, significantly improve the intraoperative conditions by providing superior quality of block. The superiority of one over the other could not be established as midazolam produced the early onset of block and less requirement of fentanyl, whereas dexmedetomidine when added to IVRA provided longer duration of analgesia (93 ± 28 min) in comparison to midazolam (84 ± 28 min).
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Effect of magnesium sulfate and clonidine in attenuating hemodynamic response to pneumoperitoneum in laparoscopic cholecystectomy
p. 67
Shruthi P Kamble, Yatish Bevinaguddaiah, Dinesh Chillkunda Nagaraja, Vinayak S Pujar, Tejesh C Anandaswamy
DOI
:10.4103/0259-1162.200228
PMID
:28298759
Background:
Pneumoperitoneum in laparoscopic procedures is associated with hemodynamic response, due to the release of catecholamines and vasopressin. Magnesium and clonidine have been used to attenuate such hemodynamic responses by inhibiting release of these mediators. We conducted this randomized, double-blinded study to assess which of the two attenuates hemodynamic response better.
Materials and Methods:
Ninety American Society of Anesthesiologists health status Classes I and II patients posted for elective laparoscopic cholecystectomy were randomized into three groups of thirty patients each. Group C received injection clonidine 1 μg/kg diluted in 10 mL normal saline over 10 min, prior to pneumoperitoneum. Group M received injection magnesium sulfate 50 mg/kg diluted in 10 mL normal saline over 10 min, prior to pneumoperitoneum. Group NS received 10 mL normal saline intravenously over 10 min, prior to pneumoperitoneum. Hemodynamic parameters were recorded before induction (baseline values), at the end of magnesium sulfate/clonidine/saline administration and before pneumoperitoneum (P0), 5 min (P5), 10 min (P10), 20 min (P20), 30 min (P30), and 40 min (P40) after pneumoperitoneum.
Results:
Systolic blood pressure, diastolic blood pressure (DBP), mean arterial pressure (MAP), and heart rate (HR) were all significantly higher in the normal saline group compared to magnesium and clonidine. On comparing patients in Group M and Group C, DBP, MAP, and HR were significantly lower in the magnesium group. Mean extubation time and time to response to verbal commands were significantly longer in the magnesium group.
Conclusions:
Both magnesium and clonidine attenuated the hemodynamic response to pneumoperitoneum. However, magnesium 50 mg/kg, attenuated hemodynamic response better than clonidine 1 μg/kg.
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The effectiveness of intravenous dexmedetomidine on perioperative hemodynamics, analgesic requirement, and side effects profile in patients undergoing laparoscopic surgery under general anesthesia
p. 72
Vinayak Panchgar, Akshaya N Shetti, HB Sunitha, Vithal K Dhulkhed, AV Nadkarni
DOI
:10.4103/0259-1162.200232
PMID
:28298760
Background:
There is an upward surge in the use of laparoscopic surgeries due to various advantages when compared to open surgeries. Major advantages are, due to small incisions which are cosmetically acceptable and most of them are now daycare procedures. Problem of economic burden and hospital bed occupancy has been overcome with laparoscopic surgeries. All these advantages are not free from disadvantages, as hemodynamic changes such as hypertension; tachycardia and other surgical-related complications are commonly observed intraoperatively. Dexmedetomidine is one of the α
2
agonist drugs which acts at both supraspinal and spinal level and modulate the transmission of nociceptive signals in the central nervous system. The basic effect of dexmedetomidine on the cardiovascular system is to decrease the heart rate and systemic vascular resistance with additional feature of opioid sparing effect. This drug has become an ideal adjuvant during general anesthesia, especially when stress is expected. Hence, the drug was studied in laparoscopic surgeries.
Aims and Objectives:
(a) To study the effect of dexmedetomidine on hemodynamic parameters during perioperative period in patients undergoing laparoscopic surgery. (b) To study the postoperative sedation score and analgesic requirement. (c) To study the side effect profile of dexmedetomidine.
Settings and Design:
Randomized double blind controlled trial.
Subjects and Methods:
After obtaining the Institutional Ethical Clearance, the study was conducted. Forty patients of American Society of Anesthesiologists Class I and II were enrolled in this randomized study. The patients were randomly divided into two groups; group normal saline (NS) and group dexmedetomidine. Patient received either NS or dexmedetomidine in group NS and group dexmedetomidine, respectively, depending upon the allocation. The infusion rate was adjusted according to; loading dose (1 μg/kg) over 10 min and maintenance dose (0.5 μg/kg/h) and perioperative hemodynamics was recorded. Routine general anesthesia was administered in all the patients with conventional technique without deviating from institutional protocols. Postoperatively, Rasmsay sedation score, time taken for request of first analgesic dose, and side effects if any were recorded.
Statistical Analysis Used:
The categorical factors are represented by the number and frequency (%) of cases. The continuous variables are represented by measures of central frequency and standard deviation. The statistical analysis was done by using unpaired
t
-test and Chi-square.
P
< 0.05 was considered statistically significant.
Results:
Significant hemodynamic changes are observed in NS group during laryngoscopy, intubation, during pneumoperitoneum formation, and during extubation. Hemodynamic stress response in dexmedetomidine group was significantly attenuated. Analgesic requirement during postoperative 24 h were much less in dexmedetomidine group when compared to NS group. No significant side effects were noted except for bradycardia; which was observed in two cases of dexmedetomidine group.
Conclusion:
Dexmedetomidine infusion in the dose of 1 μg/kg body weight as bolus over 10 min and 0.5 μg/kg/h intraoperatively as maintenance dose controlled the hemodynamic stress response in patients undergoing laparoscopic surgery. Use of dexmedetomidine extends the pain free period postoperatively and thereby reducing total analgesic requirement. Thus, dexmedetomidine can be utilized as an ideal anesthetic adjuvant during laparoscopic surgeries.
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A comparative evaluation of ramosetron with ondansetron for the prevention of postoperative nausea and vomiting in patients undergoing urological procedures
p. 78
Samiullah Mujoo, Zulfiqar Ali, Majid Jehangir, Asif Iqbal, Nargis Qayoom, Abdul Qayoom Lone
DOI
:10.4103/0259-1162.200244
PMID
:28298761
Background:
Postoperative nausea and vomiting (PONV) is a common problem causing distress to patients in the postoperative period. Younger age, gynecological surgeries, laparoscopic surgeries, female gender, volatile anesthetics, increased duration of anesthesia, and postoperative opioid use are associated with increased incidence of PONV.
Aim:
The present study was conducted to study the efficacy of ramosetron and its comparison with ondansetron in the prevention of PONV in patients undergoing pyelolithotomy, pyeloplasty, and upper ureterolithotomy.
Methods:
One hundred patients with physical status American Society of Anesthesiologists I and II, aged 20–60 years were enrolled in the study. Patients were randomly distributed to receive either injection ramosetron 0.3 mg intravenously (IV) or injection ondansetron 6 mg IV just before extubation.
Results:
There was no significant difference between the groups in age, gender, weight, duration of anesthesia, and duration of surgery. In the patients, who received ramosetron, it was observed that incidence of the episodes of nausea and vomiting increased with time after surgery. Each patient had an episode of nausea and an episode of vomiting during the 6–12 h interval. Similarly, two patients had episodes of nausea and two patients had episodes of vomiting at 18–24 h. This necessitated the increased need for rescue antiemetics with a total of four patients needing rescue antiemetics at 18–24 h. In patients receiving ondansetron, the episodes of nausea were more in number when compared with the ramosetron group. Twelve patients complained of nausea and thirteen patients had episodes of vomiting with the needfor rescue antiemetic in 14 patients. Both genders had a comparable incidence of nausea and vomiting.
Conclusion:
A single dose of IV ramosetron (0.3 mg) is more effective when compared with a single dose IV ondansetron (6 mg) in the prevention of PONV. We observed that the benefit was more in the later stages of the postoperative period (12–24 h).
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Comparison of butorphanol and fentanyl for the relief of postoperative shivering associated with spinal anesthesia
p. 84
Venkata Sesha Sai Krishna Manne, Srinivasa Rao Gondi
DOI
:10.4103/0259-1162.186861
PMID
:28298762
Aim:
The aim of this study was to compare fentanyl and butorphanol for the relief of postoperative shivering in spinal anesthesia.
Materials and Methods:
A total of 100 American Society of Anesthesiologists physical status Class I and II patients aged 19–60 years belonging to both sexes who were posted for elective surgical procedures under spinal anesthesia were divided into two groups (fentanyl and butorphanol) and monitored intraoperatively for the occurrence of shivering and time taken to control shivering after administration of fentanyl and butorphanol drugs.
Results:
Relief of shivering is rapid and more effective with fentanyl than butorphanol. There is a significant increase in pulse rate, mean arterial pressure, respiratory rate (RR), and decreased in oxygen saturation at the onset of shivering and also a decrease in core body temperature. Sedation, nausea, vomiting, and recurrence of shivering are more with butorphanol with fentanyl.
Conclusion:
On the basis of the study, it is concluded that fentanyl is more effective and takes less time to control perioperative shivering as compared to butorphanol.
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Effect of switching between pressure-controlled and volume-controlled ventilation on respiratory mechanics and hemodynamics in obese patients during abdominoplasty
p. 88
Medhat Mikhail Messeha
DOI
:10.4103/0259-1162.186594
PMID
:28298763
Background:
The ideal intraoperative ventilation strategy in obese patients remains obscure. This prospective, randomized study was designed to evaluate the effect of pressure-controlled ventilation (PCV) before or after volume-controlled ventilation (VCV) on lung mechanics and hemodynamics variables in obese patients subjected to abdominoplasty operation.
Patients and Methods:
The study included forty patients with body mass index 30–45 kg/m
2
subjected to abdominoplasty. All patients were randomly allocated in two groups after the induction of general anesthesia (twenty patients each), according to intraoperative ventilatory strategy. Group I (P-V): started with PCV until the plication of rectus muscle changes into VCV till the end of surgery. Group II (V-P): started with VCV until the plication of rectus muscle changes into PCV till the end of surgery. Lung mechanics, hemodynamics variables (heart rate and mean blood pressure), and arterial blood gases (ABGs) were recorded.
Results:
No significant difference in the hemodynamics and ABGs were recorded between the studied groups. The use of PCV after VCV induced the improvement of lung mechanics.
Conclusion:
Switching from VCV to PCV is preferred to improve intraoperative oxygenation and lung compliance without adverse hemodynamic effects in obese patients.
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Postoperative sore throat prevention in ambulatory surgery: A comparison between preoperative aspirin and magnesium sulfate gargle – a prospective, randomized, double-blind study
p. 94
Surajit Chattopadhyay, Anjan Das, Sabyasachi Nandy, Sandip RoyBasunia, Tapobrata Mitra, Partha Sarathi Halder, Subinay Chhaule, Subrata Kumar Mandal
DOI
:10.4103/0259-1162.186602
PMID
:28298764
Background:
Postoperative sore throat (POST) frequently hampers the positive feedback of ambulatory surgery in spite of so many measures. This study was carried out to compare the efficacy of preoperative magnesium sulfate and aspirin gargle in preventing POST after ambulatory surgery.
Materials and Methods:
It was a prospective, randomized, and double-blinded study. Fifty-six adult patients of either sex, aged 25–50, of American Society of Anesthesiologists physical status I–II, scheduled for day care surgery, were randomly allocated to Group A ([
n
= 28] receiving aspirin gargle [325 mg tablet]) and Group M ([
n
= 28] receiving magnesium sulfate [20 mg/kg] gargle). In both groups, the medications were made into 20 mL of (5% dextrose) solution. Patients were asked to gargle with this mixture for 30 s, 15 min before induction of anesthesia. Episodes of POST were measured at 0, 2, 4, 6, 9, 12, and 16 h postoperatively with a four-point scale.
Results:
Both groups had a similar demographic profile with comparable oxygen saturation, hemodynamics, and consciousness status at immediate postoperative period. Number of patients with sore throat was significantly lower in magnesium group compared to aspirin group at 0 h (
P
= 0.0376), 2 h (
P
= 0.0429), 4 h (
P
= 0.0394) after the operation. POST pain score (visual analog scale) was significantly (
P
< 0.05) lower in magnesium group compared to aspirin group after the operation at 0, 2, 4 h after operation.
Conclusion:
It is evident that preoperative magnesium sulfate gargle significantly attenuated the incidence and severity of POST, especially in the early postoperative period, with no adverse effects in patients undergoing day care surgery under general anesthesia.
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Obturator nerve block in transurethral resection of bladder tumor: A comparative study by two techniques
p. 101
Deepak Sharma, VP Singh, Nidhi Agarwal, MK Malhotra
DOI
:10.4103/0259-1162.184613
PMID
:28298765
Context:
Sparing of obturator nerve is a common problem encountered during transurethral resection of bladder tumor (TURBT) under spinal anesthesia.
Aims:
To evaluate and compare obturator nerve block (ONB) by two different techniques during TURBT.
Settings and Design:
This is prospective observational study.
Subjects and Methods:
Forty adult male patients from the American Society of Anesthesiologists Class I–IV planned to undergo TURBT under spinal anesthesia were divided into two groups of twenty each. In one group, ONB was performed with nerve locator. In other group, transvesical nerve block was performed with a cystoscope. The primary endpoints of this study were the occurrence of adductor reflex, ability to resect the tumor, and number of surgical interruptions. A number of transfusions required and bladder perforation were the secondary endpoints.
Results:
There was statistically significant difference between the groups for resection without adductor jerk, resection with a minimal jerk, and unresectable with high-intensity adductor jerk. Bleeding was observed in both groups and one bladder perforation was encountered.
Conclusions:
We conclude that ONB, when administered along with spinal anesthesia for TURBT, is extremely safe and effective method of anesthesia to overcome adductor contraction. ONB with nerve locator appears to be more effective method compared to the transvesical nerve block.
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Comparison of perioperative thoracic epidural fentanyl with bupivacaine and intravenous fentanyl for analgesia in patients undergoing coronary artery bypass grafting surgery
p. 105
Amitabh Chanchal Sen, Sunil Rajan, Rakhi Balachandran, Lakshmi Kumar, Suresh Gangadharan Nair
DOI
:10.4103/0259-1162.186613
PMID
:28298766
Context:
Two-thirds of patients undergoing coronary artery bypass grafting (CABG) surgery report moderate to severe pain, particularly with ambulatory or respiratory effort.
Aims:
The aim of this study is to compare the analgesic effect of perioperative thoracic epidural fentanyl with bupivacaine and intravenous fentanyl in patients undergoing CABG surgery.
Settings and Design:
The study was a prospective, randomized, nonblinded comparative study.
Materials and Methods:
A total of 60 patients coming under the American Society of Anesthesiologists Class III who were posted for CABG surgery were recruited in this study. The patients were randomized into one of two groups, higher thoracic epidural analgesia (HTEA) group receiving general anesthesia with thoracic epidural analgesia (TEA) in the postoperative period, and intravenous fentanyl analgesia group receiving general anesthesia with fentanyl infusion in the postoperative period. The pain was assessed at 4 h after extubation when the patient was fully awake, then at 8, 12, 18, and 24 h. Both groups received intravenous tramadol 100 mg as rescue analgesia whenever visual analog scale score was 5 and above. Heart rate, mean arterial pressure (MAP), sedation scores, and physiotherapy cooperation were also assessed.
Statistical Analysis Used:
The numerical data were analyzed using an independent
t
-test, repeated-measures ANOVA, and Mann–Whitney U-test.
Results:
Pain at rest and on cough was significantly lower in HTEA patients as compared to control group. Patients HTEA group got less frequent rescue analgesia than the control group. Physiotherapy cooperation was significantly better in HTEA patients at 4, 12, and 24 h postextubation. They also had significantly lower heart rate, MAP, and sedation scores.
Conclusion:
Perioperative TEA using fentanyl with bupivacaine provided optimal postoperative analgesia at rest and during coughing in patients following CABG surgery as compared to postoperative analgesia with intravenous fentanyl. It also resulted in optimal postoperative hemodynamic status, good cooperation to chest physiotherapy with less sedation.
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Airway management in patients with tracheal compression undergoing thyroidectomy: A retrospective analysis
p. 110
Binu Sajid, K Rekha
DOI
:10.4103/0259-1162.186608
PMID
:28298767
Background:
Airway management in large and retrosternal goiters with tracheal compression is often fraught with challenges and is a source of apprehension among anesthesiologists globally.
Aims:
In this study we attempt to delineate the preferred techniques of airway management of such cases in our institution and also to assess whether airway management was unnecessarily complicated.
Setting and Design:
Retrospective analysis.
Materials and Methods:
A retrospective review was conducted of thyroidectomies performed in our institution over a three year period from January 2013. Clinical, radiological, pathological, anesthetic and surgical data were obtained from hospital case records.
Statistical Analysis:
Qualitative data is represented as frequencies and percentages and quantitative data as mean and standard deviation.
Results:
Of 1861 thyroidectomies tracheal compression were present in 50 patients with minimum tracheal diameter ranging from 4-12mm (mean 7.84); with majority(95%) having a benign pathology. Critical tracheal compression (≤5 mm) was observed in four patients. Conventional intravenous induction and intubation under muscle relaxant was performed in majority (64%) of these patients. The rest of the cases (
n
=18) were intubated while preserving spontaneous ventilation after induction. Primary technique of airway management was reported successful in all cases with no instances of difficult ventilation or intubation. Postoperative morbidity in few cases resulted from hematoma (
n
=1), recurrent laryngeal nerve palsy (
n
=1), tracheomalacia (
n
=1) and pulmonary complications (
n
=2).
Conclusion:
Airway management in patients with tracheal compression due to benign goiter is quite straightforward and can be managed in the conventional manner with little or no complications.
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Comparative study of the effect of intravenous paracetamol and tramadol in relieving of postoperative pain after general anesthesia in nephrectomy patients
p. 117
Venkata Sesha Sai Krishna Manne, Srinivasa Rao Gondi
DOI
:10.4103/0259-1162.186619
PMID
:28298768
Aim:
The aim of this study was to compare the effect of intravenous paracetamol and tramadol in relieving of postoperative pain after general anesthesia for nephrectomy in prospective donor patients for kidney transplantation.
Materials and Methods:
A randomized study was conducted on 100 adult patients scheduled for nephrectomy aged from 35 to 55 years of both sexes and divided into two groups and were administered intravenous paracetamol and tramadol for postoperative pain relief and assessed with visual analog scale score and variations in vital parameters to assess extent of pain relief.
Results:
After statistical interpretation of collected data, the observations were extrapolated. There was a statistically significant difference in the pain intensity scores obtained between the paracetamol and tramadol groups.
Conclusion:
On the basis of the present study, it is concluded that tramadol due to its lesser onset of action time was superior to paracetamol in providing acute postoperative pain relief.
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Effect of addition of fentanyl to xylocaine hydrochloride in brachial plexus block by supraclavicular approach
p. 121
Venkata Raghavendra Paluvadi, Venkata Sesha Sai Krishna Manne
DOI
:10.4103/0259-1162.186609
PMID
:28298769
Aim:
This study was designed to quantitatively compare the effects of 1.5% xylocaine with 1.5% xylocaine and fentanyl (1 μg/kg) mixture for supraclavicular brachial plexus block.
Materials and Methods:
Sixty patients between the age group of 20–60 and scheduled for upper limb surgery were divided into two groups (xylocaine group and xylocaine plus fentanyl group). After performing supraclavicular brachial plexus block, an assessment was made for onset of analgesia, duration and degree of analgesia, block intensity, and for any other side effects.
Results:
Mean duration of analgesia is Group I is 2.1 h and in Group II is 8.1 h; a four-fold increase in duration of analgesia.
Conclusion:
Addition of fentanyl to xylocaine for supraclavicular brachial plexus block has no significant effect on onset or quality of analgesia, but duration of analgesia is significantly prolonged.
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Intraperitoneal levobupivacaine with or without clonidine for pain relief after laparoscopic cholecystectomy:A Randomized, Double-blind, Placebo-controlled Trial
p. 125
Nishith Govil, Parag Kumar
DOI
:10.4103/0259-1162.194561
PMID
:28298770
Background:
Irrigation of local anesthetic intraperitoneally in combination with opioids and non-opioids agents has been used to provide pain relief with varying success in laparoscopic surgeries. This randomized double blind placebo controlled study is designed to study the effect of intraperitoneal instillation of levo-bupivacaine along with clonidine for pain relief after laparascopic cholecystectomy.
Methods:
75 patients were randomized to receive 20 ml of 0.9% normal saline as placebo (group I), 20 ml of 0.5% levo bupivacaine (group II) and 20 ml of 0.5% levo bupivacaine with 1mcg/kg clonidine (group III) intraperitoneally. The degree of postoperative pain was assessed using the VAS and VRS on the immediate arrival in the recovery room after surgery and thereafter at 2, 4, 8, 12 and 24 hours, postoperatively. Statistical analysis was performed with ANOVA, the Kruskal-Wallis test followed by the Wilcoxon matched pairs rank test was used and
P
< 0.05 were considered significant.
Results:
VAS was maximum in placebo (group I) than in levobupivacaine alone (group II) and was minimum in levobupivacaine with clonidine (group III) at all time intervals. The difference between group I and II is statistically significant at immediate and at 2 hours postoperatively but no difference were found between group I and II after 2 hour. However, there is statistically significant difference (
P
< 0.05) between group I and III and group II and III at all time intervals.
Conclusion:
Intraperitoneal instillation of levobupivacaine along with clonidine in a dose of 1mcg/kg is superior to levobupivacaine alone without having any significant adverse effects.
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Attenuation of hemodynamic response to skull pin head holder insertion: Intravenous clonidine versus intravenous lignocaine infusion
p. 129
Nethra H Nanjundaswamy, Vinay Marulasiddappa
DOI
:10.4103/0259-1162.186592
PMID
:28298771
Background:
Insertion of skull pin induces a significant increase in heart rate (HR), blood pressure (BP) and intracranial pressure. Alpha 2 agonist clonidine and intravenous (i.v.) lignocaine are effective in attenuating stress response. Local infiltration of pin site and scalp block with lignocaine are commonly used techniques for prevention of hemodynamic response to skull pin insertion. We compared the effectiveness of i.v. clonidine infusion and i.v. lignocaine infusion in suppressing the hemodynamic response to skull pin head holder insertion.
Designs:
Randomized double blind study conducted with sample size - sixty patients, divided into two groups: Group C (
n
= 30) - clonidine i.v. dose 2 μg/kg; Group L (
n
= 30) - lignocaine i.v. dose 1.5 mg/kg.
Materials and Methods:
All patients posted for elective craniotomy belonging to American Society of Anesthesiologists (ASA) 1 and 2, age group 18–70 were included in the study. ASA 3, 4; difficult airway; hypertensives; allergy to study drugs; ischemic heart disease; and arteriovenous malformations were excluded. Study drugs were administered 10 min prior to induction in 10 ml syringes with infusion pump over 10 min. Standard anesthesia protocol followed. HR, noninvasive BP, mean arterial pressure (MAP), and IBP were recorded at baseline (BL), after study drug (AD), 1 min after intubation (AI), 1 min prior to pin insertion -pre pin (PP), and 5 min after pin insertion (AP).
Analysis:
Descriptive and inferential statistical analysis – Student's
t
- and Chi-square/Fisher exact test were used (SAS 9.2, SPSS 15.0)
P
value described as *moderately significant (
P
value: 0.01 <
P
≤ 0.05) **strongly significant (
P
value:
P
≤ 0.01).
Results:
Groups were matched with respect to age (
P
= 0.7), gender distribution (
P
= 0.6), and weight (
P
= 0.67) There was no difference in BL HR in two groups. Significant difference in HR was noted after intubation
P
< 0.031 and pin insertion
P
< 0.001 stages with lower HR in Group C (76.03 ± 9.88) versus Group L (98 ± 60.89) MAP recordings showed no statistically significant difference in two groups at BL and after drug administration stages. A significant difference was seen in intubation (
P
< 0.014), very significant difference (
P
< 0.001) was noted in pre- and post-pin insertion stages with MAP was lower in Group C (76.03 ± 9.88) versus Group L (87.17 ± 8.90).
Conclusion:
i.v. clonidine at dose of 2 μg/kg is a better drug in attenuating hemodynamic response to skull pin head holder insertion than i.v. lignocaine.
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Effect of dexmedetomidine as an adjuvant to 0.75% ropivacaine in interscalene brachial plexus block using nerve stimulator: A prospective, randomized double-blind study
p. 134
HD Rashmi, HK Komala
DOI
:10.4103/0259-1162.181431
PMID
:28298772
Background:
Ropivacaine, a newer local anesthetic (LA), has been increasingly used nowadays in different concentrations for peripheral nerve blocks. It has lesser cardiac toxicity and higher safety margin when compared to bupivacaine. Dexmedetomidine, a novel α
2
agonist, is widely used as adjuvant to LA in peripheral nerve blocks to decrease the time of onset and increase the duration of the block. In this study, we evaluated the effect of dexmedetomidine as an adjuvant with 0.75% ropivacaine for interscalene brachial plexus block using nerve stimulator.
Aim:
This study aims to know the effect of using dexmedetomidine as an adjuvant to 0.75% ropivacaine in interscalene brachial plexuses block using nerve stimulator.
Settings and Designs:
Sixty patients scheduled for elective orthopedic surgery of the upper limb under interscalene block were considered in this prospective randomized controlled double-blind study. The study population was randomly divided into two groups with thirty patients in each group by using computerized randomization.
Materials and Methods:
Group R received 30 ml of 0.75% ropivacaine with 0.5 ml normal saline and Group RD received 30 ml of 0.75% ropivacaine with 50 μg of dexmedetomidine. The onset of sensory and motor blocks, duration of sensory and motor block, and patient satisfaction score were observed.
Results:
Both the groups were comparable in demographic characteristics. The onset of the sensory and motor block is earlier and statistically significant in Group RD (
P
< 0.05) when compared to Group R. The duration of sensory and motor blockade were significantly prolonged in Group RD (
P
< 0.0001).
Conclusion:
Addition of dexmedetomidine to 0.75% ropivacaine in interscalene brachial plexus block significantly shortened the time of onset of the block and prolongs the duration sensory and motor blockade.
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Comparison of nerve stimulation-guided axillary brachial plexus block, single injection versus four injections: a prospective randomized double-blind study
p. 140
Santoshi V Badiger, Sameer N Desai
DOI
:10.4103/0259-1162.186865
PMID
:28298773
Background:
A variety of techniques have been described for the axillary block using nerve stimulator, either with single injection, two, three, or four separate injections. Identification of all the four nerves is more difficult and time-consuming than other methods.
Aims:
Aim of the present study is to compare success rate, onset, and duration of sensory and motor anesthesia of axillary block using nerve stimulator, either with single injection after identification of any one of the four nerves or four separate injections following identification of each of nerve.
Setting and Design:
Prospective, randomized, double-blind study. Patients undergoing forearm and hand surgeries under axillary block.
Methodology:
One hundred patients, aged 18–75 years, were randomly allocated into two groups of 50 each. Axillary block was performed under the guidance of nerve stimulator with a mixture of 18 ml of 1.5% lignocaine and 18 ml of 0.5% bupivacaine. In the first group (
n
= 50), all 36 ml of local anesthetic was injected after the identification of motor response to any one of the nerves and in Group 2, all the four nerves were identified by the motor response, and 9 ml of local anesthetic was injected at each of the nerves. The success rate of the block, onset, and duration of sensory and motor block was assessed.
Statistical Analysis:
Categorical variables were compared using the Chi-square test, and continuous variables were compared using independent
t
-test.
Results:
The success rate of the block with four injection technique was higher compared to single-injection technique (84% vs. 56%,
P
= 0.02). Four injection groups had a faster onset of sensory and motor block and prolonged duration of analgesia compared to single-injection group (
P
< 0.001). There were no significant differences in the incidence of accidental arterial puncture and hemodynamic parameter between the groups.
Conclusion:
Identification of all the four nerves produced higher success rate and better quality of the block when compared to single-injection technique.
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A survey on awareness about the role of anesthesia and anesthesiologists among the patients undergoing surgeries in a tertiary care teaching women and children hospital
p. 144
Vinay Marulasiddappa, HN Nethra
DOI
:10.4103/0259-1162.186595
PMID
:28298774
Background:
Although anesthesiology has grown tremendously and although anesthesiologists play a crucial role in the perioperative management of patients and also outside operating theater (OT) such as critical care, pain clinic, and labor analgesia, they do not get due recognition. We conducted a study to assess the awareness about the role of anesthesia and anesthesiologists among patients scheduled to undergo surgery in a Government Tertiary Care Teaching Women and Children Hospital.
Designs:
A prospective cross-sectional survey with a sample size of 100 patients.
Materials and Methods:
Patients scheduled to undergo elective surgery in the age group of 18–65 years with the American Society of Anesthesiologists (ASA) Grades 1 and 2, who are willing to participate and given written informed consent. Patients whose age <18 years and more than 65 years, ASA health status Class 3 and above were excluded.
Analysis:
Statistical analysis was done by calculating percentages using Chi-square test.
Results:
Twenty percent of the participants were illiterate and of the educated, none were graduates or postgraduates. Patients with higher level of education had better knowledge of anesthesiology and role of an anesthesiologist with
P
< 0.05 than those with lesser education. Forty-eight percent of the participants had no idea about anesthesia despite the majority (62%) having previous surgery with no statistically significant difference (
P
> 0.05) between those with previous surgery and those without previous surgery regarding their knowledge of anesthesiology and anesthesiologist. Ninety percent did not know the complications, types of anesthesia and 44% did not know that anesthesiologist is a doctor.
Conclusion:
Most of the participants were not aware of the role of anesthesia and anesthesiologists inside and outside OT. Although this could be attributed to their lower level of education, the fraternity of anesthesiologists has to educate patients and surgeons about the role of anesthesia.
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A comparative study of intravenous dexmedetomidine and intravenous clonidine for postspinal shivering in patients undergoing lower limb orthopedic surgeries
p. 151
Manohar Panneer, Prakash Murugaiyan, Sufala Viswas Rao
DOI
:10.4103/0259-1162.183157
PMID
:28298775
Background:
Dexmedetomidine and clonidine have been used for the prevention and treatment of shivering following spinal blockade. A prospective randomized, double-blinded study was conducted to compare the efficacy and safety of dexmedetomidine and clonidine in controlling postspinal shivering.
Methods:
A total of sixty participants of equal sex, aged between 18 and 60 years of American Society of Anesthesiologists (ASA) I/II Class, who underwent orthopedic lower limb surgeries under spinal anesthesia with ≥Grade III shivering were randomly divided into two groups, Group D (
n
= 30) received injection dexmedetomidine 0.5 μg/kg and Group C (
n
= 30) received injection clonidine 1 μg/kg when they experienced shivering. Time taken to control shivering, response rate, recurrence rate, and side effects such as nausea, vomiting, dry mouth, respiratory depression, and deep sedation were observed.
Results:
The demographic profile, ASA Class, duration of surgery, duration of anesthesia, temperature, onset and grade of shivering were all comparable between the two groups. Time taken to control shivering and recurrence rate were significantly lower in Group D when compared with Group C. Level of sedation was adequate with Group D, and the incidence of hypotension and bradycardia were significantly higher in Group C. The other side effects profiles were comparable between the two groups.
Conclusion:
Dexmedetomidine 0.5 μg/kg is more efficient than clonidine 1 μg/kg in controlling postspinal blockade shivering. Dexmedetomidine has early onset of effect, high response rate, and less recurrence rate with added advantage of good sedation and stable cardiorespiratory parameters.
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A comparative study for post operative analgesia in the emergency laparotomies: Thoracic epidural ropivacaine with nalbuphine and ropivacaine with butorphanol
p. 155
Saravana Babu, Bikram Kumar Gupta, Gyanendra Kumar Gautam
DOI
:10.4103/0259-1162.186593
PMID
:28298776
Background:
Adequate postoperative pain therapy for emergency abdominal surgeries is important far beyond the perioperative period because sensitization to painful stimuli can cause postoperative morbidity. A prospective, double-blind, randomized study was carried out to compare the quality of postoperative analgesia and side-effect profile between epidurally administered butorphanol and nalbuphine as an adjuvant to 0.2% ropivacaine.
Materials and Methods:
A total of eighty patients, 43 men and 37 women between the age of 18 and 65 years of American Society of Anesthesiologists (ASA) Class I E and II E, who underwent intestinal perforation repair surgery were randomly allocated into two groups ropivacaine with butorphanol (RB) and ropivacaine with nalbuphine (RN), comprising of 40 patients each. Group RB received 0.2% ropivacaine containing 2 mg butorphanol while Group RN received 0.2% ropivacaine containing 10 mg nalbuphine through thoracic epidural catheter. Quality of analgesia, cardiorespiratory parameters, side-effects, and the need of rescue intravenous analgesia were observed.
Results:
The demographic profile and ASA Class were comparable between the groups. RN group had good quality of analgesia and stable cardiorespiratory parameters for the initial 6 h of postoperative period, after which they were comparable in both groups. Furthermore, the need of rescue analgesia was higher (20%) in the RB group during the first 6 h. The side-effect profile was comparable with a little higher incidence of nausea in both groups.
Conclusion:
Thoracic epidurally administered ropivacaine with nalbuphine is more effective than ropivacaine with butorphanol for immediate postoperative pain relief in patients undergoing emergency exploratory laparotomy.
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The effectiveness of articaine and lidocaine single buccal infiltration versus conventional buccal and palatal injection using lidocaine during primary maxillary molar extraction: A randomized control trial
p. 160
Naveen Kumar Reddy Kolli, S. V. S. G. Nirmala, Sivakumar Nuvvula
DOI
:10.4103/0259-1162.186589
PMID
:28298777
Background:
Despite the advent of modern injection techniques, palatal injection continues to be a painful experience for children.
Aims:
To compare the pain experienced during extraction of maxillary primary molars with conventional lignocaine anesthesia versus lignocaine and articaine buccal infiltration in children aged 6–14 years.
Materials and Methods:
A prospective randomized triple blinded study was conducted with ninety children (
n
= 90), randomly allocated to receive lignocaine conventional anesthesia (Group I [control group]), and buccal infiltration using articaine (Group II [articaine group]) or lignocaine (Group III [lignocaine group]). A composite score of self-report (faces pain scale-revised), behavioral measure (face legs activity cry consolability scale), and a physiological response (pulse rate) was measured following maxillary primary molar extraction.
Statistical Analysis Used:
To test the mean difference between two groups, Students'
t
-test was used and among the three groups, one-way ANOVA with
pos hoc
test was used.
Results:
Articaine group had significantly lower pain scores for self-report (
P
< 000.1) and behavioral measures (
P
< 000.1) while there was no significant difference (
P
> 0.05) between articaine and control groups during primary maxillary molar extraction.
Conclusion:
Maxillary primary molar extraction procedure can be successfully accomplished by bypassing the palatal injection. Articaine buccal infiltration can be considered as an alternative to conventional local anesthesia for the extraction of maxillary primary molars.
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The effect of paracetamol versus meperidine on postoperative pain of cesarean section
p. 165
Hashem Jarineshin, Fereydoon Fekrat, Saeed Kashani
DOI
:10.4103/0259-1162.186617
PMID
:28298778
Background and Aim:
Meperidine and paracetamol are frequently used in postoperative pain control. We evaluated the effect of paracetamol versus meperidine on postoperative pain control of elective cesarean section in patients under general anesthesia.
Materials and Methods:
In this randomized double-blind study, seventy mothers' candidate for cesarean section under general anesthesia were randomized in paracetamol group (
n
= 35), received 1 g paracetamol in 100 ml normal saline, and meperidine group (
n
= 35), received 25 mg meperidine in 100 ml normal saline and then compared regarding the pain and vomiting severity based on visual analog scale (VAS).
Results:
Two groups did not show significant difference regarding pain score based on VAS during 30 min after surgery in the recovery room, however, the pain score after 30 min in paracetamol group was significantly more than meperidine group. The difference between two groups regarding pain score in surgery ward at 0, 2, 4, 6 h, were not significant, however, pain score after 6 h in meperidine group was significantly lower than paracetamol group. The score of vomiting based on VAS in the recovery room in meperidine group was marginally more than paracetamol group (
P
> 0.05). The score of vomiting, based on VAS in meperidine group was significantly more than paracetamol group during the 24 h in the surgery ward. The analgesic consumption in meperidine group during 24 h after surgery was significantly lower than paracetamol group.
Conclusion:
We indicated that the meperidine decreased postoperative pain score and analgesic consumption more than paracetamol, but increased the vomiting score.
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Accuracy in blood pressure monitoring: The effect of noninvasive blood pressure cuff inflation on intra-arterial blood pressure values
p. 169
Veena Sheshadri, Akhilesh Kumar Tiwari, Mahesh Nagappa, Lashmi Venkatraghavan
DOI
:10.4103/0259-1162.181430
PMID
:28298779
Context:
Both invasive and noninvasive blood pressure (invasive arterial blood pressure [IABP] and noninvasive BP [NIBP]) monitors are used perioperatively; however, they often produce different values. The reason for this discrepancy is not clear, and it is possible that the act of cuff inflation itself might affect the IABP values, especially with the recurrent cycling of NIBP cuff.
Aim:
The aim of this study was to determine the effect of ipsilateral NIBP cuff inflation on the contralateral IABP values.
Settings and Designs:
Prospective, observational study.
Materials and Methods:
One hundred consecutive patients were studied. The NIBP device was set to cycle every 5 min for a total of 6 times. During each cuff inflation cycle, changes in IABP values from the arterial line in the contralateral arm were recorded. A total of 582 measurements were included for data analysis.
Statistical Analysis:
Chi-square, paired
t
-test, analysis of variance.
Results:
Mean (± standard deviation) changes in systolic BP (SBP), diastolic BP, and mean BP with cuff inflation were 6.7 ± 5.9, 2.6 ± 4.0, and 4.0 ± 3.9 mmHg, respectively. We observed an increase of 0–10 mmHg in SBP in majority (73.4%) of cuff inflations. The changes in IABP did not differ between the patients with or without hypertension or with the baseline SBP.
Conclusions:
This study showed that there is a transient reactive rise in IABP values with NIBP cuff inflation. This is important information in the perioperative and intensive care settings, where both these measurement techniques are routinely used. The exact mechanism for this effect is not known but may be attributed to the pain and discomfort from cuff inflation.
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Effects of inhaled nitrous oxide on the induction dose and time requirements of propofol: A prospective, randomized, double-blind study
p. 174
Kavita Jain, Surendra Kumar Sethi, Mamta Damor, Neena Jain
DOI
:10.4103/0259-1162.183165
PMID
:28298780
Context:
Propofol is a commonly used induction agent during general anesthesia. As a sole agent, it does not provide any strong analgesic effect. The nitrous oxide (N
2
O) used along with propofol for induction of anesthesia augments the induction characteristics and reduces the dose of propofol.
Aims:
To study the effects of inhaled N
2
O on the induction dose and time of propofol during general anesthesia and also its hemodynamic response and adverse effects.
Settings and Design:
The present research is a prospective, randomized, double-blind comparative study.
Subjects and Methods:
The study population consisted of eighty patients aged 18–60 years from either sex, American Society of Anesthesiologists physical status 1 and 2 which were scheduled for various elective surgical procedures under general anesthesia. The patients were randomly allocated into two groups comprising forty patients in each group. All patients were premedicated with glycopyrrolate 0.2 mg, ondansetron 4 mg, and fentanyl 1 μg/kg intravenously. Group FN received breathing mixture of gases (67% N
2
O @ 4 L/min and 33% O
2
@ 2 L/min), and propofol and Group FO received 100% O
2
@ 6 L/min and propofol. The different hemodynamic parameters (heart rate, mean arterial pressure, systolic blood pressure, diastolic blood pressure, and SpO
2
) were measured.
Statistical Analysis:
All observations were analyzed using Chi-square test, Student's
t
-test, and analysis of variance.
Results:
The mean induction time and dose were significantly less in Group FN as compared to Group FO (
P
< 0.05). The mean induction time was 172 ± 32 s in Group FN as compared to 242 ± 43 s in Group FO (
P
< 001), whereas the mean induction dose was 56.10 ± 13.92 mg in Group FN as compared to 81.67 ± 17.64 mg in Group FO (
P
< 0.05). The hemodynamic parameters remained stable with no complications.
Conclusion:
The coadministration of N
2
O during induction of anesthesia with propofol not only reduced the induction dose of propofol but also reduced induction time significantly. Furthermore, it provided stable hemodynamics without any complications.
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Analgesic efficacy of transverse abdominal plane block after elective cesarean delivery – Bupivacaine with fentanyl versus bupivacaine alone: A randomized, double-blind controlled clinical trial
p. 181
Roshan John, RV Ranjan, TR Ramachandran, Sagiev Koshy George
DOI
:10.4103/0259-1162.186864
PMID
:28298781
Background:
The analgesic benefit of transversus abdominis plane (TAP) blocks for cesarean delivery remains controversial. In our study, we compared the analgesic efficacy of TAP block using local anesthetic bupivacaine and adjunct fentanyl with bupivacaine alone in patients undergoing elective cesarean section.
Methods:
Our study was a randomized, double-blind, controlled clinical trial where sixty patients undergoing elective cesarean delivery under subarachanoid block (2 ml of 0.5% bupivacaine) were randomized into two groups, A and B. At the end of the surgical procedure, bilateral TAP block was performed guided by the ultrasound. Group A received 38 ml of 0.25% bupivacaine and 2 ml of 50 μg of fentanyl, whereas Group B received 38 ml of 0.25% bupivacaine + 2 ml of normal saline. The total volume was divided equally and administered bilaterally. Each patient was assessed for 24 h after TAP block, for time to rescue analgesia, pain using visual analog scale (VAS) score at rest and on movement, hemodynamic parameters (heart rate and blood pressure), nausea, vomiting, and sedation. Diclofenac 75 mg was given as rescue analgesia when the patient complained of pain or when VAS score >4.
Results:
Prolonged postoperative analgesia was noticed with both the groups, with a mean time to rescue analgesia of approximately 6.5 h. There was no significant difference in time to rescue analgesia (6.49 ± 0.477 vs. 6.5 ± 0.480) when both the groups were compared among themselves. The pain scores among the two groups when compared did not show any added benefit. Incidence of nausea, vomiting, and sedation when compared between both the groups showed no difference.
Conclusion:
The TAP block as a part of a multimodal analgesic regimen definitely has a role in providing superior analgesia in the postoperative period. However, adjunct fentanyl to local anesthetic bupivacaine was found to have no added advantage when quality and duration of analgesia was compared.
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Comparison of oral clonidine, oral dexmedetomidine, and oral midazolam for premedication in pediatric patients undergoing elective surgery
p. 185
Sarika Kumari, Nidhi Agrawal, G Usha, Vandana Talwar, Poonam Gupta
DOI
:10.4103/0259-1162.194586
PMID
:28298782
Background:
Midazolam has been commonly used orally for premedication in children. A search for a better alternative continues to overcome its side effects. Recently alpha-2 agonists, clonidine, and dexmedetomidine have been used for premedication in children.
Aim:
To study and compare the efficacy of oral clonidine, oral dexmedetomidine, and oral midazolam for premedication in pediatric surgical patients.
Settings and Design:
This prospective, randomized, double blind study was conducted in a tertiary care hospital.
Materials and Methods:
The study was conducted in ninety children of either sex, in the age group of 4–12 years and the American Society of Anesthesiologists Physical status I, posted for ophthalmic surgery. Patients were randomly allocated to one of the three groups of thirty patients each: Group M: Oral midazolam 0.5 mg/kg body weight, Group D: Oral dexmedetomidine 4 μg/kg body weight, and Group C: Oral clonidine 4 μg/kg body weight. Patients were assessed for sedation, anxiolysis, and change in heart rate and blood pressure in the preoperative area. Behavior of children at separation from parents, mask acceptance, and side effects if any were noted.
Statistical Analysis:
Data analysis was performed by unpaired Student's
t
-test and Chi-square test.
Results:
Children in oral midazolam group achieved faster onset of sedation, higher sedation score, and lower anxiety score as compared to other two groups. The Group D and Group M were comparable as regards behavior at separation from parents (
P
= 0.236), but Group D was significantly better than Group C (
P
= 0.031). The three groups were comparable as regards providing satisfactory mask acceptance (
P
= 0.163). A number of children with easy separation from parents and excellent mask acceptance were significantly more in Group M as compared to Groups C and D (
P
= 0.028 and
P
= 0.012, respectively). Group C and Group D showed a lower mean arterial pressure at 45 min (
P
< 0.001) and 60 min after premedication (
P
< 0.001) as compared to Group M.
Conclusion:
Oral midazolam is superior to the oral clonidine, and oral dexmedetomidine with faster onset of sedation, higher sedation score, lower anxiety score, and greater number of children with easy separation and excellent mask acceptance.
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Study of effect of magnesium sulphate in management of acute organophosphorous pesticide poisoning
p. 192
HN Vijayakumar, Sudheesh Kannan, C Tejasvi, Devika Rani Duggappa, KM Veeranna Gowda, SS Nethra
DOI
:10.4103/0259-1162.194585
PMID
:28298783
Background:
Organophosphorus compound poisoning (OPCP) is a major public health problem in developing countries like India. Atropine and oximes remain the main-stay of management. Magnesium sulfate (MgSO
4
) has shown benefit in the management of OPCP.
Aims:
This study was designed to assess the effect of MgSO
4
on outcome in OPCP patients admitted to Intensive Care Unit (ICU).
Settings and Design:
Double-blind prospective randomized clinical trial in an ICU of tertiary care institution.
Methods:
One hundred patients (50 in each group) of OPCP, confirmed by history and syndrome of OPCP with low plasma pseudocholinesterase, aged between 18 and 60 years were studied. Magnesium group (Group M) received 4 g of 20% MgSO
4
infusion over 30 min at admission to ICU, control group (Group C) received normal saline placebo in the same manner. Patients were assessed for the need for intubation, requirement of atropine, duration of mechanical ventilation, duration of ICU stay, and its effect on mortality.
Statistical Analysis:
Chi-square test and Fisher's exact test for categorical data, independent sample
t
-test, and paired
t
-test for nominal data.
Results:
Demographics and basal serum magnesium levels were comparable. Atropine requirement was higher in Group C (74.82 ± 22.39 mg) compared to Group M (53.11 ± 45.83 mg) (
P
< 0.001). A total of 33 patients in Group C and 23 patients in Group M required intubation, respectively (
P
= 0.043). The mean duration of mechanical ventilation was 4.51 ± 2 days in Group C compared to 4.13 ± 1.6 days in Group M (
P
= 0.45). ICU stay was 5.36 ± 2.018 days in Group C compared to 4.54 ± 1.581 days in Group M (
P
= 0.026). There was no significant difference in mortality between the groups.
Conclusion:
Four grams of MgSO
4
given to OPCP patients within 24 h of admission to ICU, decreases atropine requirement, need for intubation, and ICU stay.
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Ventilation of nonparalyzed patients under anesthesia with laryngeal mask airway, comparison of three modes of ventilation: Volume controlled ventilation, pressure controlled ventilation, and pressure controlled ventilation-volume guarantee
p. 197
Maroun Badwi Ghabach, Elie M El Hajj, Rouba D El Dib, Jeanette M Rkaiby, May S Matta, May R Helou
DOI
:10.4103/0259-1162.200238
PMID
:28298784
Background:
Pressure controlled ventilation (PCV) is the preferable mode of ventilation of nonparalyzed patients undergoing anesthesia with laryngeal mask airway (LMA) as compared to volume controlled ventilation (VCV) and spontaneously breathing patient. In this study, we compared the PC–volume guarantee (PC-VG) mode of ventilation with VCV and PCV modes.
Materials and Methods:
A total of 30 patients, American Society of Anesthesiologists (ASA) physical status Classes I and II, scheduled for elective surgery under general anesthesia with a classic LMA were ventilated, subsequently, with the three modes of ventilation: VCV, PCV, and PC-VG for 10 min each mode. Tidal volume set for all patients was 8 ml/kg of ideal body weight. Parameters measured with modes of ventilation include peak inspiratory pressure (PIP), compliance, measured tidal volume, O
2
saturation, end-tidal CO
2
, and presence of an oropharyngeal leak.
Results:
The PIP was significantly higher with the application of VCV mode of ventilation than PCV and PC-VG modes. The compliance was significantly lower when using the mode of ventilation VCV than PCV and PC-VG. The PIP and the compliance were not statistically different between the PCV and PC-VG modes of ventilation.
Conclusions:
Ventilation of nonparalyzed patients with LMA under anesthesia with PC-VG is advantageous over VCV in reducing PIP and increasing lung compliance. No difference was noted between PCV and PC-VG in ASA Classes I or II under the adequate depth of anesthesia in patients with normal pulmonary function.
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The effect of intravenous dexmedetomidine compared to propofol on patients hemodynamics as a sedative in brachial plexus block: A comparative study
p. 201
Amarjeet Kumar, Chandni Sinha, Ajeet Kumar, Poonam Kumari
DOI
:10.4103/0259-1162.200236
PMID
:28298785
Background:
The quest for an ideal sedative during regional anesthesia is on. Although propofol has been accepted as a sedative intraoperatively, it can be associated with troublesome hemodynamic changes. Dexmedetomidine is a new alpha 2 agonist used widely for sedation.
Aims:
In this study, we tried to compare equivalent doses of dexmedetomidine infusion with propofol with emphasis on their effect on the hemodynamics.
Settings and Design:
Prospective, single-blinded randomized controlled trial.
Materials and Methods:
In a single blinded study, 60 American Society of Anesthesiologists (ASA) I and II patients scheduled for forearm surgeries under brachial plexus block were randomized to receive either propofol (Group I) or dexmedetomidine (Group II) infusion. Ultrasound-guided supraclavicular brachial plexus block was given in all the patients. After confirming adequate motor and sensory blockade, they were administered an initial loading dose of the drug over 10 min followed by a maintenance dose till the end of the surgery. The rate of infusion was titrated to maintain Ramsay sedation score of 2–4. Intraoperative hemodynamic and respiratory effects were documented along with surgeon and patient satisfaction. Any adverse effect such as hypotension, bradycardia, nausea, and vomiting was also noted.
Statistical Analysis Used:
The data collected were evaluated using Stata version 10.
P
< 0.05 was considered statistically significant.
Results:
Heart rate decreased significantly in Group II (dexmedetomidine) while mean arterial pressure decreased significantly in Group I (propofol). There was no increase in the incidence of bradycardia or hypotension in either groups. Patient satisfaction score was significantly greater in Group II (dexmedetomidine) while surgeon satisfaction score was similar in both the groups.
Conclusion:
Dexmedetomidine at equivalent doses of propofol has a similar hemodynamic and respiratory effect, similar surgeon's satisfaction score, higher patient's satisfaction score, and no significant side effects in ASA I/II patients. Thus, dexmedetomidine may prove to be a valuable alternative to propofol for sedation in patients undergoing upper limb surgeries in brachial plexus block.
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Comparison of dexmedetomidine and magnesium sulfate as adjuvants with ropivacaine for spinal anesthesia in infraumbilical surgeries and postoperative analgesia
p. 206
Reena Makhni, Joginder Pal Attri, Payal Jain, Veena Chatrath
DOI
:10.4103/0259-1162.200237
PMID
:28298786
Introduction:
Postoperative pain is a major cause of fear and anxiety in hospitalized patients and so if patients remain pain-free during this period, they can cooperate with the circumstances well, leading to early recovery. Over the last two decades, there has been considerable revival of interest in the use of regional anesthesia techniques for surgery and pain management. As very few studies have been conducted using ropivacaine with dexmedetomidine and magnesium sulfate (MgSO
4
) as adjuvants, the present study was undertaken with primary aims to compare the hemodynamic stability, onset and duration of sensory and motor block and with secondary aims of the postoperative analgesic effect of dexmedetomidine and MgSO
4
along with ropivacaine.
Materials and Methods:
After getting the Institutional Ethics Committee approval, this study was conducted on fifty patients of the American Society of Anesthesiologists physical Status I and II aged between 20 and 65 years of either sex and scheduled to undergo infraumbilical surgeries under spinal anesthesia. They were divided into two groups of 25 each. Group D patients received 3 ml of 0.75% isobaric ropivacaine hydrochloride with 10 μg of dexmedetomidine whereas Group M patients received 75 mg of MgSO
4
in the place of dexmedetomidine. The quality of surgical analgesia and quality of intraoperative muscle relaxation were assessed and graded.
Results:
We found out that onset of sensory and motor block was earlier in Group D in comparison to Group M. There was a significant reduction in the time to the first rescue analgesia in group receiving intrathecal dexmedetomidine.
Conclusion:
It is concluded from our study that ropivacaine plus dexmedetomidine group are better than ropivacaine plus MgSO
4
in providing early onset of sensory and motor block as well as in providing postoperative analgesia.
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Caudal levobupivacaine supplemented with caudal or intravenous clonidine in children undergoing infraumbilical surgery: A randomized, prospective double-blind study
p. 211
Laxmi Ramya Potti, Yatish Bevinaguddaiah, S Archana, Vinayak Seenappa Pujari, C Manjunath Abloodu
DOI
:10.4103/0259-1162.200233
PMID
:28298787
Background:
Caudal analgesia is the most popular regional anesthesia technique in pediatric population for intraoperative and postoperative analgesia. Clonidine, an α
2
agonist, prolongs analgesia without causing significant respiratory depression after systemic or neuraxial administration. However, the most beneficial route of its administration is still controversial. Thus, we compared the effects of caudal and intravenous (i.v) clonidine on postoperative analgesia produced by caudal levobupivacaine in children undergoing infraumbilical surgery.
Methods:
A comparative three group study was carried out in seventy-five pediatric patients who underwent elective surgery for infraumbilical procedures, under general anesthesia with caudal block. Group A (
n
= 25) received levobupivacaine 0.25% 1 mL/kg caudally and 5 mL of normal saline i.v, Group B (
n
= 25) received levobupivacaine 0.25% 1 mL/kg with 1 μg/kg clonidine caudally and 5 mL of normal saline i.v, and Group C (
n
= 25) received levobupivacaine 0.25% 1 mL/kg caudally and 1 μg/kg clonidine in 5 mL normal saline i.v. Postoperative pain was assessed for 24 h using the Children and Infants Postoperative Pain Scale Score. Ramsay sedation scale and modified Bromage scale were assessed at predetermined time intervals for sedation and motor blockade, respectively.
Results:
The mean duration of postoperative analgesia was significantly longer in Group B (16.68 ± 4.7 h) than in Group A (4.24 ± 1.42) and Group C (9.44 ± 3.88 h):
P
< 0.001. The number of patients not requiring rescue analgesia in Group B was 5, which was significantly higher than in Group C (one patient) and Group A (zero patient):
P
< 0.001. No motor blockade or sedation was observed in any of the groups.
Conclusions:
Clonidine in a dose of 1 μg/kg added to 0.25% levobupivacaine for caudal analgesia significantly prolongs the duration of analgesia, without any side effects.
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Effects of lignocaine administered intravenously or intratracheally on airway and hemodynamic responses during emergence and extubation in patients undergoing elective craniotomies in supine position
p. 216
Tabasum Shabnum, Zulfiqar Ali, Imtiaz Ahmad Naqash, Aabid Hussain Mir, Khan Azhar, Syed Amer Zahoor, Abdul Waheed Mir
DOI
:10.4103/0259-1162.200239
PMID
:28298788
Introduction:
Sympathoadrenergic responses during emergence and extubation can lead to an increase in heart rate (HR) and blood pressure whereas increased airway responses may lead to coughing and laryngospasm. The aim of our study was to compare the effects of lignocaine administered intravenously (IV) or intratracheally on airway and hemodynamic responses during emergence and extubation in patients undergoing elective craniotomies.
Methodology:
Sixty patients with physical status American Society of Anaesthesiologists Classes I and II aged 18–70 years, scheduled to undergo elective craniotomies were included. The patients were randomly divided into three groups of twenty patients; Group 1 receiving IV lignocaine and intratracheal placebo (IV group), Group 2 receiving intratracheal lignocaine and IV placebo (I/T group), and Group 3 receiving IV and intratracheal placebo (placebo group). The tolerance to the endotracheal tube was monitored, and number of episodes of cough was recorded during emergence and at the time of extubation. Hemodynamic parameters such as HR and blood pressure (systolic, diastolic, mean arterial pressure) were also recorded.
Results:
There was a decrease of HR in both IV and intratracheal groups in comparison with placebo group (
P
< 0.005). Rise in blood pressure (systolic blood pressure, diastolic blood pressure and mean arterial pressure) was comparable in both Groups 1 and 2 but was lower in comparison with placebo group (
P
< 0.005). Cough suppression was comparable in all the three groups. Grade III cough (15%) was documented only in placebo group.
Conclusion:
Both IV and intratracheal lignocaine are effective in attenuation of hemodynamic response if given within 20 min from skull pin removal to extubation. There was comparable cough suppression through intratracheal route and IV routes than the placebo group.
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Caudal epidural analgesia in pediatric patients: Comparison of 0.25% levobupivacaine and 0.25% ropivacaine in terms of motor blockade and postoperative analgesia
p. 223
P Praveen, R Remadevi, N Pratheeba
DOI
:10.4103/0259-1162.200231
PMID
:28298789
Context:
Ropivacaine and Levo-Bupivacaine have been safely used for caudal anaesthesia in children, but there are limited studies comparing the efficacy of 0.25% Ropivacaine and 0.25% Levo-Bupivacaine for caudal anaesthesia in infraumbilical surgeries.
Aims:
The aim of this study was to compare the incidence of motor blockade and postoperative analgesia with 0.25% ropivacaine and 0.25% levobupivacaine for the caudal block in children receiving infraumbilical surgery.
Settings and Design:
This was a randomized double-blinded study.
Subjects and Methods:
Sixty patients of either sex, between 1 and 10 years posted for elective infraumbilical surgeries, to receive caudal block with either (Group R) ropivacaine 0.25% or (Group L) levobupivacaine 0.25% of volume 1 ml/kg were included in the study. Motor blockade was assessed using motor power scale, and pain was assessed every 1 h for first 6 h, then 2
nd
hourly for following 18 h using modified Hannallah objective pain scale. If pain score is ≥4, the patients were given paracetamol suppositories 20 mg/kg as rescue analgesia.
Statistical Analysis Used:
All analyses were performed using Chi-square test, Student's independent
t
-test, Kruskal–Wallis test, Mann–Whitney U-test.
Results:
The time for full motor recovery was similar in both groups; in Group R, ropivacaine: 180.50 ± 14.68 min, and in Group L, levobupivacaine: 184.50 ± 18.02 min, with
P
= 0.163. The duration of postoperative pain relief between the groups was 330.50 ± 9.54 min in Group L (levobupivacaine) and 312.67 ± 5.56 min in Group R (ropivacaine) with
P
= 0.165 not statistically significant.
Conclusions:
Both ropivacaine 0.25% and levobupivacaine 0.25% have similar recovery from motor blockade and postoperative analgesia.
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Effect of periradial administration of papaverine on radial artery diameter
p. 228
PS Nagaraja, Naveen G Singh, N Manjunatha, Rushikesh Chintamanrao Desai
DOI
:10.4103/0259-1162.194579
PMID
:28298790
Background:
Radial artery cannulation is a skillful procedure. An experienced anesthesiologist might also face difficulty in cannulating a feeble radial pulse.
Aim:
The purpose of the study was to determine whether periradial subcutaneous administration of papaverine results in effective vasodilation and improvement in the palpability score of radial artery.
Settings and Design:
Prospective, double-blinded trial.
Methodology:
Thirty patients undergoing elective cardiac surgery were enrolled in the study. 30 mg of papaverine with 1 ml of 2% lignocaine and 3 ml of normal saline were injected subcutaneously 1–2 cm proximal to styloid process of the radius. Radial artery diameter before and after 20 min of injection papaverine was measured using ultrasonography. The palpability of the radial pulse was also determined before the injection of papaverine and 20 min later. Patients were monitored for hemodynamics and any complications were noted.
Statistical Analysis Used:
Student's
t
-test for paired data.
Results:
Radial artery diameter increased significantly (
P
< 0.0001), and the pulse palpability score also showed statistically significant improvement (
P
< 0.0001) after periradial subcutaneous administration of papaverine. There was no statistically significant difference in heart rate, mean arterial blood pressure before and after papaverine injection. No complications were noted in 24 h of follow-up.
Conclusion:
Periradial subcutaneous administration of papaverine significantly increased the radial artery diameter and pulse palpability score, which had an impact on ease of radial artery cannulation essential for hemodynamic monitoring in cardiac surgical patients.
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Amyloidosis and anesthesia
p. 233
Zara Wani, Dev Kumar Harkawat, Meenaxi Sharma
DOI
:10.4103/0259-1162.200235
PMID
:28298791
Aim:
The aim of this article is to provide a view of amyloidosis and discuss implications for the anesthetic management of patients with this condition.
Material and Method:
Urine samples from patients with plasma cell dyscrasias were obtained from a urine bank that gathers urine samples from patients who gave research use consent for specimens that would otherwise be considered waste.
Results:
Patients with amyloidosis may present to the anesthesiologist for procedures relating to diagnosis, surgery relating to the underlying condition (e.g., bronchial laser and organ transplant), or for incidental surgery. The condition carries a significant risk of perioperative morbidity and mortality.
Conclusion:
The term amyloid was coined by Virchow in the mid 19th century, meaning “starch like.” Amyloidosis is a disease complex, in which there is an abnormal deposition of extracellular hyaline material with particular staining characteristics and which contains protein fibrils embedded in a relatively amorphous ground substance. There are numerous clinical manifestations, the onset is insidious, and the diagnosis may not be made in a patient undergoing anesthesia and surgery for an apparently straightforward problem. Unexpected complications such as heart or kidney failure may arise, either before operation or in the postoperative period. Bullous lesions of the skin or oral mucosa and extensive areas of purpura are but two of the ways, in which amyloidosis may first present. The disease spectrum may be inherited or acquired, localized or systemic, and life threatening or an incidental finding.
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Comparison of king vision and truview laryngoscope for postextubation visualization of vocal cord mobility in patients undergoing thyroid and major neck surgeries: A randomized clinical trial
p. 238
Anto Sahaya Priyanka, Kusha Nag, VR Hemanth Kumar, Dewan Roshan Singh, Senthil Kumar, T Sivashanmugam
DOI
:10.4103/0259-1162.200240
PMID
:28298792
Background:
Visualization of vocal cords following extubation after thyroid and major neck surgeries is highly desirable for the surgeon as well as the anaesthesiologist to rule out vocal cord palsy or oedema. As the patient is emerging from general anaesthesia, it may be challenging for the anaesthesiologist to optimally visualise and grade vocal cord movement following extubation.
Setting:
Randomized clinical trial at a tertiary care centre.
Methodology:
After obtaining institutional ethics committee approval, 60 patients posted for thyroid and major neck surgeries under American Society of Anesthesiologists (ASA) grade I and II were recruited for the study. Written informed consent was obtained. Pre-operatively indirect laryngoscopy was performed in all the patients to assess baseline vocal cord function. All patients were premedicated and induced and maintained as per standardized anaesthesia protocol. Patients were randomized using a sealed envelope technique to either Group K where intubation was performed using Kings vision laryngoscope or Group T where intubation was performed using True view laryngoscope. Glottis visualization was graded in all patients and intubated. Ten minutes prior to extubation injection. dexmedetomidine 1 μg/kg was administered. Once patients satisfied extubation criteria, laryngoscopy was performed using respective video-laryngoscope in each group, patient extubated under vision and assessed for vocal cord visualization and mobility grade (VMG) and patient reactivity score (PRS). Heart rate, systolic blood pressure, diastolic blood pressure and mean arterial pressure was also noted. Total intraoperative morphine consumption was recorded. Vocal cord function was assessed again before the day of discharge by indirect laryngoscopy.
Results:
Age (
P
= 0.27), sex (
P
= 0.08), body mass index (
P
= 0.70), ASA (
P
= 0.39), mallampati class (
P
= 0.72) and morphine used (
P
= 0.39) were comparable in both groups. There was no statistically significant difference among the two groups with respect to VMG (
P
= 0.18). There was no statistical difference in the PRS (
P
= 0.06) in both groups. Increase in heart rate or mean arterial pressure from baseline was not significant statistically in both groups. Time taken for laryngoscopy during extubation was significantly less with group T as compared to group K (
P
= 0.000).
Conclusion:
Both Kings Vision and Truview Video-laryngoscopes provide comparable laryngoscopic view with similar patient comfort, although clinically Truview may be a better choice due to less time consumed for visualisation and rating vocal cord movement during extubation.
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CASE REPORTS
Perioperative considerations in a patient with hemophilia A: A case report and review of literature
p. 243
Tuhin Mistry, Neelam Dogra, Kanchan Chauhan, Jigyasa Shahani
DOI
:10.4103/0259-1162.181432
PMID
:28298793
Classic hemophilia or hemophilia A is a congenital bleeding diathesis in which the affected individual may present with spontaneous hemorrhage or persistent bleeding even after minor trauma. Knowledge about the disease process, multidisciplinary team approach, and timely management can lead to favorable outcome in these patients. We report management of a child with hemophilia A for suturing of lacerated upper lip mucosa following trauma. A review of literature with recommendations for perioperative management, especially in the setting of emergency surgery, is also provided.
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Anesthetic implications in a child with crouzon syndrome
p. 246
Ajeet Kumar, Nitika Goel, Chandni Sinha, Abhishek Singh
DOI
:10.4103/0259-1162.200234
PMID
:28298794
Crouzon syndrome (CS) is an autosomal dominant genetic disorder characterized by craniofacial dysostosis. Premature fusion of skull base leads to midfacial hypoplasia, shallow orbit, mandibular prognathism, overcrowding of upper teeth, high-arched palate, and upper airway obstruction. It is important for anesthesiologists managing such patients to recognize and avoid potential airway complications. Here, we present a case of a 10-year-old child with CS posted for ptosis correction surgery. Use of peripheral nerve blocks to cut down opioid requirement, inhalational induction, and maintenance are key aspects in successful management of such cases.
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A novel and innovative way of nasogastric tube insertion in anesthetized intubated patient
p. 248
Sandeep Sahu, Kamal Kishore, Vertika Sachan, Arnidam Chatterjee
DOI
:10.4103/0259-1162.200243
PMID
:28298795
Nasogastric tube (NGT) placement in anesthetized and intubated is sometimes very challenging with more than 50% failure rate in the first attempt. We describe a newer innovative Sahu's three in one, technique with use of GlideScope and forward placement of intubated trachea by external laryngeal maneuver, these both techniques lead to separation of trachea from esophagus so that endoscopic jejunal feeding tube guide wire strengthen NGT can be guided and manipulated to esophagus under direct vision. After informed consent, we used Sahu's three in one combo technique to insert NGT in adult anesthetized and intubated patients of both the sexes with high success in the first attempt. We found this technique easy, helpful, less time consuming with high success rate.
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Anaesthetic management of a neuroectodermal tumor of infancy: A rare case report
p. 251
Pravin Ubale, Namita Baldwa, Pinakin Gujjar
DOI
:10.4103/0259-1162.186863
PMID
:28298796
Melanotic neuroectodermal tumor of infancy is a relatively uncommon osteolytic-pigmented neoplasm that primarily affects the jaws of infants. We report a 5-month-old male child who presented with a swelling in the right upper tooth region of upper jaw in which we face difficult mask ventilation as well as difficult intubation. Wide surgical excision was performed under general anesthesia. The uneventful course of anesthesia in the presented case was due to the thorough systemic evaluation and careful anesthetic strategy. Patients of congenital epulis continue to pose challenge to anesthesiologist as a consequence of the potential difficult mask ventilation and intubation. We hereby present a case of congenital epulis repair using diode laser under general anesthesia.
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Cervical vagal schwannoma: Anesthetic concerns
p. 254
Suman Saini, Nikki Sabharwal, Nidhi Agrawal, Bhupender Singh
DOI
:10.4103/0259-1162.183163
PMID
:28298797
Schwannomas arising from cervical vagus nerve is an extremely rare benign neoplasm. The majority of patients present with insidiously growing lateral neck mass without neurological deficit. We report a case of symptomatic cervical vagal nerve schwannoma in a 32-year-old female. Complete surgical resection is the treatment of choice. However, anesthetic management of these tumors can be challenging. We describe here the complications experienced during the management of the patient.
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Regional anesthesia in patients of aged 99 years in clopidogrel use
p. 257
Bruno Brasileiro, Luiz Eduardo Imbelloni
DOI
:10.4103/0259-1162.186869
PMID
:28298798
The risk of neuraxial block in patients treated with antiplatelet drugs are uncertain. Elderly patients often have low physiological reserve, delaying surgery can lead to a high rate of morbidity and mortality. The aim of this paper is to present a case of a patient with 99 years using clopidogrel undergoing regional anesthesia for surgical treatment of hip fracture without complications.
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Case of neurological complication following subarachnoid block in a patient with unsuspected coagulopathy
p. 260
Arun Mathur, C Venkatesh Nagappa
DOI
:10.4103/0259-1162.194563
PMID
:28298799
Subarachnoid block (SAB) is an extensively used regional anesthesia technique for many surgeries. Neurological complications are rare following spinal anesthesia. We are reporting neurological complication in a patient the following appendectomy under SAB with unsuspected coagulopathy. The complication was noticed early and managed conservatively with a high dose of intravenous steroid and improved drastically in a short period.
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A case of subclavian artery aneurysm with history of ischemic heart disease operated under cervical epidural anesthesia
p. 263
Amrita Rath, J Abhinay, Sandeep Loha, Atul Kumar Singh
DOI
:10.4103/0259-1162.183160
PMID
:28298800
Subclavian artery aneurysm is usually operated under general anesthesia (GA), but in specific situations, it can also be conducted under regional anesthesia (RA) such as cervical epidural anesthesia (CEA). A 48-year-old male presented with chief complaint of progressive swelling in the right side of the neck for the past 3 months following trauma. He was diagnosed as subclavian artery aneurysm, and surgical intervention was advised. He had previous history of angina 4 months back for which tablet aspirin 75 mg and tablet clopidogrel 75 mg once daily was prescribed. Cardiological evaluation revealed of an ejection fraction of around 30% with mild left ventricular hypokinesia and grade 2 diastolic dysfunction. Due to the poor cardiac functional status of the patient, RA with CEA was planned. The risk with GA in cases with a history of myocardial ischemia is more than RA, hence, it is better to use CEA which is equally efficacious in such high-risk cases.
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Stellate ganglion block as rescue therapy in refractory ventricular tachycardia
p. 266
MC Rajesh, KV Deepa, EK Ramdas
DOI
:10.4103/0259-1162.194566
PMID
:28298801
Pain physicians and anesthesiologists routinely perform stellate ganglion block for the treatment of painful upper extremity sympathetic dystrophy. Close proximity of ganglion to vascular structures warrants some expertise and training in the procedure. Off late, successful use of the technique in intractable ventricular tachyarrhythmias has come in literature. We have few cases wherein we could successfully ablate intractable ventricular tachycardia with stellate block which was refractory to repeated shocks. We are reporting one such case with the intention of making an awareness in the anesthesia community about this treatment option.
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Infantile cystic hygroma: An unusual perioperative course
p. 268
Suman Saini, Madhu Dayal, Amita Gupta
DOI
:10.4103/0259-1162.183158
PMID
:28298802
Airway management of an infant with a giant cervical lump may be a difficult task. The anesthesiologist must be prepared to face associated challenges during securing the airway in such patients. We report our experience with One year old infant who presented with huge cystic hygroma in the cervical region leading to recurrent episodes of respiratory tract infection and distress. Surgical removal was needed as sclerotherapy proved ineffective in reducing its size. Proseal laryngeal mask airway was used as a conduit after inhalational induction since airway could not be maintained with bag and mask. The child was tracheostomized postoperatively and also had a prolonged Intensive Care Unit stay. Difficulties encountered in intubation and postoperative management of this child are discussed in this report.
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LETTERS TO EDITOR
Missed guide wire in inferior vena cava after central venous cannulation
p. 271
Gaurav Singh Tomar, Sumit Charan, Neeraj Mishra, Shailendra Kumar
DOI
:10.4103/0259-1162.177185
PMID
:28298803
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Ketamine: A convulsant?
p. 272
Madhuri S Kurdi, KS Sushma, R Ranjana, P Bharath Kiran
DOI
:10.4103/0259-1162.200241
PMID
:28298804
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Propofol reduces succinylcholine-induced muscle rigidity in a patient with paramyotonia congenita
p. 273
Ahmad Elsharydah, Alexa C Kaminski
DOI
:10.4103/0259-1162.200242
PMID
:28298805
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© Anesthesia: Essays and Researches | Published by Wolters Kluwer -
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Online since 1
st
June, 2010