Intravenous Magnesium Sulfate in Comparison to Tramadol in Prevention of Post Spinal Shivering in Geriatric Patients Undergoing Transurethral Resection of Prostate

Abstract

Background: Postanesthetic shivering is a frequent complication of anesthesia, perhaps even aggravating pain especially during (TURP) surgery. The aim of the present study was to compare the efficacy of 15mg/kg of I.V MgSo4 and 0.5mg/kg of tramadol to placebo normal saline on incidence and severity of postspinal shivering in geriatric patients undergoing (TURP) surgery, when used as prophylaxis. Patients and methods:This is a comparative prospectivestudy was included 39 geriatric  male patients who scheduled for performing an  elective (TURP) surgery under the SAB at Zagazig University Hospitals. Patients were divided equally into 3 groups: Group C: were received isotonic saline after spinal anesthesia, Group Mg: were received I.V MgSO4  in isotonic saline.Group T: were received I.V tramadol inisotonic saline after spinal anesthesia. All patients were enrolled for examination before and after surgery.Results:There was no significant difference among the studied groups as regard HR, MAP and Spo2 between the three studied groups.Regarding changes in temperature between the studied groups, C group  showed a significant lower Temperature time followed by Mg group then T group at different times. There was a significant higher rate of Shivering in C group then Mg group and the lowest T group, and onset of shivering was significantly faster in control then Mg group and longer significantly in Group T. Conclusion:Prophylactic administration of I.V tramadol in a dose of 0.5mg/kg immediately after SAB  could be  significantly reduces the incidence and severity of postspinal shivering more than I.V MgSo4 in adose of 15mg/kg in geriatric patients undergoing (TURP) surgery.