Preemptive Use of Nicotine Patch for Postoperative Pain Relief in Open Abdominal Surgery

Study patients include nonsmokers aged 18-75 undergoing open abdominal wall surgery under general anesthesia. If the patient smokes, receives a regional anesthetic such as an epidural, or is pregnant, then he/she is excluded from the study. There are two randomized study groups. Group B receives a seven-milligram transdermal patch and Group A receives a placebo patch. Generic seven-milligram nicotine patches or identical placebo patches made from band-aids are glued to a 3x4 inch adhesive pad and placed on the individuals' right upper arm 1 hour before surgery. All patients are given a standardized anesthetic consisting of a narcotic infusion, propofol, a neuromuscular blocking agent, anesthetic gas agent, antinauseant medication and a nonsteroidal.

Patients receive postoperative analgesia for twenty four hours after surgery with a narcotic or an additional nonsteroidal medication. All patients receive intravenous controlled patient controlled analgesia (IVPCA) with morphine sulfate one milligram per ten minutes, forty milligram four hour limit. Patients also receive toradol fifteen milligrams for breakthrough pain. The patch is removed from participants twenty four hours post IVPCA initiation. The following items are assessed every four hours for twenty four hours after post anesthesia care unit discharge: a verbal rating of pain, total IVPCA morphine use, nausea occurrence, vomiting occurrence, and sedation score by the nurse.