Objective: To assess the efficacy of pre-incisional peritonsillar infiltration of two doses of ketamine on postoperative analgesia compared with peritonsillar normal saline in children undergoing tonsillectomy.
Study Design: Double blind, randomized controlled trial.
Place And Duration Of Study: Department of Anaesthesiology, Surgical Intensive Care and Pain Management, Civil Hospital, Karachi, Dow University of Health Sciences, from August 2008 to January 2009.