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ORIGINAL ARTICLE
Year : 2015  |  Volume : 31  |  Issue : 3  |  Page : 375-379

Effect of intravenous esmolol on analgesic requirements in laparoscopic cholecystectomy


1 Department of Anaesthesiology, Fortis Hospital, Gurgaon, India
2 Department of Anaesthesiology, Dayanand Medical College and Hospital, Ludhiana, India
3 Department of Anaesthesiology, Cincinnati Children's Hospital, Cincinnati, USA

Correspondence Address:
Mirley Rupinder Singh
Department of Anaesthesiology, Dayanand Medical College and Hospital, Ludhiana, Punjab
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0970-9185.161676

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Background and Aims: Perioperative beta blockers are also being advocated for modulation of acute pain and reduction of intraoperative anesthetic requirements. This study evaluated the effect of perioperative use of esmolol, an ultra short acting beta blocker, on anesthesia and modulation of post operative pain in patients of laproscopic cholecystectomy. Material and Methods: Sixty adult ASA I & II grade patients of either sex, scheduled for laparoscopic cholecystectomy under general anesthesia, were enrolled in the study. The patients were randomly allocated to one of the two groups E or C according to computer generated numbers. Group E- Patients who received loading dose of injection esmolol 0.5 mg/kg in 30 ml isotonic saline, before induction of anesthesia, followed by an IV infusion of esmolol 0.05 μg/kg/min till the completion of surgery and Group C- Patients who received 30 ml of isotonic saline as loading dose and continuous infusion of isotonic saline at the same rate as the esmolol group till the completion of surgery. Results: The baseline MAP at 0 minute was almost similar in both the groups. At 8th minute (time of intubation), MAP increased significantly in group C as compared to group E and remained higher than group E till the end of procedure. Intraoperatively, 16.67% of patients in group C showed somatic signs as compared to none in group E. The difference was statistically significant. 73.33% of patients in group C required additional doses of Inj.Fentanyl as compared to 6.67% in group E. Conclusions: We conclude that intravenous esmolol influences the analgesic requirements both intraoperatively as well as postoperatively by modulation of the sympathetic component of the pain i.e. heart rate and blood pressure.


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