A comparison of two different doses of morphine added to spinal bupivacaine for inguinal hernia repair

AbstractBackground and objectivesThe aim of this study was to compare the effects of two different doses of intrathecal morphine on postoperative analgesia, postoperative first mobilization and urination times and the severity of side effects.MethodsAfter Institutional Ethical Committee approval, 48 ASA I-II patients were enrolled in this randomized double-blinded study. Spinal anesthesia was performed with 0.1mg (Group I, n=22) or 0.4mg (Group II, n=26) ITM in addition to 7.5mg heavy bupivacaine. The first analgesic requirement, first mobilization and voiding times, and postoperative side effects were recorded. Statistical analyses were performed using SPSS 15.0 and p