Ketamine as an adjunct to fentanyl improves postoperative analgesia and hastens discharge in children following tonsillectomy - a prospective, double-blinded, randomized study.

Objective:   To evaluate the effect of ketamine, as an adjunct to fentanyl, on postoperative analgesia and duration of Postoperative Care Unit (PACU) stay, in children undergoing tonsillectomy.

Background:   Ketamine, as an N-methyl-d-aspartate antagonist, has been recognized to have an opioid sparing effect. In addition, it does not depress respiration or affect airway tone.

Percutaneous microdiscectomy versus epidural injection for management of chronic spinal pain.

In this study we present the efficacy of aspiration of disc material employing the Stryker Disc Dekompressor during percutaneous microdiscectomy for the treatment of chronic spinal and radicular pain due to contained lumber disc herniation and compare the short-term outcome in such patients with those who received lumber epidural injection. A total of 50 patients with chronic lumber discogenic pain and radiculopathy were enrolled in this study and were randomized into two groups. Group 1 (n=26) underwent first time, single-level lumber discectomy at either L3-4, L4-5, or L5-S1 using the Stryker Disc Dekompressor for aspiration of disc material and Group 2 (n=24) received epidural steroid/local anesthetic injection.

Efficacy of postoperative continuous wound infiltration with local anesthetic after major abdominal surgery.

The aim of this study was to evaluate the analgesic efficacy, safety, opioid sparing effects and improvement of respiratory function when using 0.2% ropivacaine continuous wound infiltration after major intra-abdominal surgery. Forty patients undergoing major intra-abdominal surgery requiring a midline incision of > or = 20 cm were enrolled into this IRB-approved, randomized, prospective controlled study.