Tramadol and postoperative shivering in patients undergoing open and laparoscopic cholecystectomy under general anaesthesia

Abstract

Background: For many years, shivering after anaesthesia has been recognised, and is one consequence of perioperative hypothermia. Shivering affects a number of physiological parameters. The aim of the study was to evaluate the severity of hypothermia after open and laparoscopic cholecystectomy, and to determine the efficacy of injection tramadol hydrochloride (HCl) in preventing postanaesthetic shivering.