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ORIGINAL ARTICLE
Year : 2020  |  Volume : 14  |  Issue : 3  |  Page : 412-419

Comparison of oral clonidine and gabapentin premedication for attenuation of pressor response to laryngoscopy and endotracheal intubation


Batra Hospital and Medical Research Centre, New Delhi, India

Correspondence Address:
Dr. Vaishali Sharma
Department of Anaesthesiology, Apollo Cradle Royale, Nehru Enclave, New Delhi - 110 019
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/aer.AER_114_20

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Background: During the administration of general anesthesia, direct laryngoscopy and endotracheal intubation cause an increase in heart rate, arterial pressure, and dysrhythmias in upto 90% of patients. These changes can be particularly hazardous for patients with cerebral or coronary diseases. Both clonidine and gabapentin have been used for anesthetic effects, but a better drug for controlling hemodynamic parameters is being investigated. Aims: The study was done to evaluate and compare the efficacy of oral clonidine 0.3 mg and oral gabapentin 900 mg as a premedication for attenuation of pressor response to laryngoscopy and endotracheal intubation. Materials and Methods: After obtaining approval from the ethics committee, 75 patients, American Society of Anesthesiologists physical status classes I and II between the ages of 18 and 60 years scheduled to undergo elective noncardiac surgical procedure were enrolled in the study. Patients were randomized into three groups of 25 each who received 0.3 mg clonidine, 900 mg gabapentin, and placebo. The hemodynamic parameters were recorded at various time intervals along with any adverse effects. Statistical Analysis: Quantitative variables were compared using unpaired t-test between the two groups and ANOVA for three groups. Qualitative variables were compared using the Chi-square test/Fisher's exact test. P < 0.05 was considered statistically significant. Results: In our study, we found that both clonidine and gabapentin are effective premedicants by oral route 2 h before induction of anesthesia to blunt the hemodynamic response to laryngoscopy and intubation as compared to placebo. Between clonidine and gabapentin, clonidine was found to be more effective with respect to blunting of systolic blood pressure (SBP), diastolic blood pressure (DBP), and mean arterial pressure (MAP), although found to be statistically significant only at 15 min with respect to SBP and DBP. Conclusion: Using clonidine or gabapentin, one can effectively provide stable hemodynamic conditions during laryngoscopy and endotracheal intubation, but more so with clonidine.


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