DOI: http://dx.doi.org/10.18203/2319-2003.ijbcp20194122

A comparative study for efficacy and safety of low doses of clonidine for hemodynamic stability in patients undergoing laparoscopic cholecystectomy

Ruchi Choudhary, Preeti Singh, Surabhi Gupta, P. P. Khosla, Prithpal S. Matreja, Upmanyu Singh

Abstract


Background: This randomized prospective double-blind study was designed to evaluate the efficacy and side effects of low doses clonidine for perioperative haemodynamic stability and postoperative recovery.

Methods: Patient’s with ASA grade I–II undergoing laparoscopic cholecystectomy were randomized into three groups of 30 patients each. All patients received either normal saline 10 ml (Group I) or 0.8 µg/kg (Group II) or 1 µg/kg (Group III) over duration of 180 seconds, 10 min prior to laryngoscopy and intubation. Anaesthesia was induced with 1% propofol (2 mg/kg) and maintained with nitrous oxide 60% in oxygen and isoflurane. The parameters assessed at various time intervals were heart rate, systolic blood pressure, diastolic blood pressure, mean arterial pressure and sedation score.

Results: Both doses of clonidine proved to be effective in perioperative haemodynamic stability. Clonidine 0.8 mcg/kg was as effectve and safer to Clonidine 1 mcg/kg for attenuatíon of the hemodynamíc responses to laparoscopy. There were no significant differences in the parameters of recovery between groups.

Conclusions: Significant hemodynamic derangements can occur during laproscopic cholecystectomy at intubation, pneumoperitoneum and extubation. These were effectively attenuated by premedication with 0.8 mcg/kg and 1 mcg/kg of intravenous clonidine. Dose of 1 mcg/kg though found to be effective but produced adverse effects in form of hypotension and bradycardia.


Keywords


Clonidine, Hemodynamic response, Laparoscopic cholecystectomy, Laryngoscopy, Pneumoperitoneum

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References


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