A study to evaluate Perfusion index(PI) as a tool to assess analgesia during laparoscopic cholecystectomy under general anaesthesia

This prospective randomized controlled trial aims to evaluate changes in perfusion index (PI) as a tool to assess analgesia during laparoscopic cholecystectomy under GA. 40 patients belonging to ASA I and ASA II will be included in the study. Patients will be randomly allocated into 2 groups of 20 patients each. Group F will receive 0.5 mcg/kg of fentanyl after 2nd port insertion.  Group C (n=20) will receive anaesthesia as per standard protocol.  Primary outcome of the study is to determine whether a statistically significant variation occurs in perfusion index in response to painful stimuli and in response to analgesic administration in laparoscopic cholecystectomy under general anaesthesia.  Secondary outcome of this study is to determine if statistically significant changes in PI occurs with changes in HR and MAP.