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Efficacy of a bolus dose of esmolol and bolus dose of lignocaine for attenuating the pressor response to laryngoscopy and endotracheal intubation in general anesthesia: A comparative study


1 Department of Anaesthesia, Shri B M Patil Medical College and Hospital, Bijapur, Karnataka, India
2 Department of Community Medicine, Shri B M Patil Medical College and Hospital, Bijapur, Karnataka, India

Correspondence Address:
Sridevi Mallanna Mulimani,
#19 Ghatage Layout, Near Adarsh Nagar Police Station, Solapur Road, Vijayapura, Bijapur, Karnataka
India
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/aer.AER_31_19

Context: Laryngoscopy and endotracheal intubation result in an increase in heart rate and blood pressure; they evoke life-threatening complications. The esmolol is short-acting cardioselective beta-blocker and brings advantages to the perioperative management of tachycardia and hypertension. Aims: The aim of this study was to compare the efficacy of a bolus dose of esmolol and bolus dose of lignocaine for attenuation of the pressor response to laryngoscopy and intubation. Settings and Design: Sixty patients of both sex, aged 20–50 years, belonging to the American Society of Anesthesiologists physical Status I and II randomly allocated into two groups (n = 30). Materials and Methods: The study drugs diluted in 10-ml normal saline. Group I received esmolol 1.5 mg/kg and Group II received lignocaine 1.5 mg/kg 2 min before inducing the patients with thiopentone 5 mg/kg and suxamethonium 1.5 mg/kg. The heart rate, systolic blood pressure, and diastolic blood pressure were measured at basal, during intubation, and 1, 2, 3, and 5 min after intubation, and based on these values, the mean arterial pressure (MAP) and rate pressure product (RPP) was calculated. Statistical Analysis Used: The Student's t-test and data were represented by mean standard deviation and graphs. Results: The mean pulse rate, mean of MAP, and mean of RPP at intubation and at 1, 2, 3, and 5 min after intubation in lignocaine group showed a significant rise in these values but in esmolol group it remained nearer to or less than baseline values. Conclusions: Esmolol 1.5 mg/kg is effective in attenuating the pressor response in comparison with lignocaine 1.5 mg/kg during laryngoscopy and intubation.


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    -  Mulimani SM
    -  Talikoti DG
    -  Vastrad VV
    -  Sorganvi VM
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