تاثير ترامادول بر لرز پس از بيحسي نخاعي جهت عمل سزارين انتخابي

Effect of tramadol on post-spinal anesthesia shivering in patients undergoing elective cesarean section

Objective: Post-operative shivering is a common complication following both general and spinal anesthesia. Tramadol is one of the drugs used for prevention and treatment of this complication. The aim of this study was to assesses its effectiveness in prevention of postspinal anesthesia shivering among pregnant women undergoing elective cesarean section.. Subjects and Methods: In this double blind randomized clinical trial, 90 pregnant women with ASA I & II who were referred for cesarean section under spinal anesthesia, were divided in two groups. At the end of surgery and during skin closure, tramadol I mg/kg (in 20 ml normal saline) was injected by slow IV in the studied group. Control group received 20 ml of normal saline. Vital signs (PR, S&D BP, SP02) were checked at the end of injection, and 5, 10, 15 minutes after injection. Oral temperature, nausea and vomiting, and incidence of postoperative shivering and grading of shivering were recorded in both groups. The resulting data were analyzed by Chi square test. Results: Post-anesthesia shivering was detected in 39 women (86.6 %) in the control group and in 4 patients (8.8 %) in tramadol-treated group (P