Preemptive peritonsillar ketamine infiltration: postoperative analgesic efficacy versus meperidine.

Objectives: The current study was planned to assess post-tonsillectomy analgesic efficacy of pre-emptive peritonsillar ketamine infiltration with or without bupivacaine in comparison to meperidine alone or in combination with bupivacaine.

Patients & Methods: The study included 100 patients with mean age of 10.5 +/- 2.