Intraoperative ketamine for the prevention of shivering post-trans urethral resection of prostate

Abstract EN

Objective: To assess the effect of intraoperative ketamine in preventing post-anesthetic shivering. Methods: Eighty patients classified by the American society of anesthesiologists as class 2 and 3, scheduled for elective trans urethral resection of prostate under general anesthesia, were included in this study.

Patients were issigned in a random manner to be given normal saline 0.9% as a placebo (group 1, n =37) or ketamine 25mg ntravenously (group 2, n = 43) at the end of surgery prior to laryngeal mask airway removal.

An anesthetist graded Dost- anesthetic shivering using a 5- point scale. Results: The two groups did not differ significantly regarding patients demographics.

Ketamine significantly reduced the incidence and severity of post-anesthetic shivering in comparison with placebo, on arrival in the recovery room and at regular intervals postoperatively. Conclusion: Our results suggest that intraoperative ketamine is effective in the prevention of post- anesthetic shivering.