• Pınar Acar, Emine Ozyuvacı, Sule Vatansever, Naile Toprak, and Onat Akyol.
• Department of Anesthesiology, İstanbul Education and Training Hospital, İstanbul, Turkey.
• Agri. 2010 Oct 1;22(4):151-8.

ObjectivesOur prospective, randomized, double-blind study aimed to detect the effect of intrathecal levobupivacaine combined with fentanyl or morphine on the postoperative analgesia in patients undergoing cesarean section.MethodsAfter approval by the hospital ethics committee and obtaining written informed consent, ASA I-II parturients undergoing elective cesarean section were enrolled in this study. None of the patients had any contraindication for spinal anesthesia or sensitivity to local anesthetics. Patients were randomly assigned in a double-blinded fashion to receive either intrathecal 10 mg 5% levobupivacaine + 0.1 mg morphine (Group M, n=30) or 10 mg 5% levobupivacaine + 20 mcg fentanyl (Group F, n=30). The onset of sensorial block and anesthesia, interval of effective analgesia until the first analgesic requirement, disappearance of motor block according to modified Bromage scale, duration of spinal analgesia, additional analgesic requirement, amount of additional analgesic, adverse effects, and postoperative patient satisfaction were recorded.ResultsThe additional analgesic requirement period was significantly longer in Group M than Group F (p<0.001). Intraoperative and postoperative complications were significantly higher in Group F than Group M (p<0.05). Intended, delivered and total analgesic amount values were significantly higher in Group F than Group M (p<0.001). Patient satisfaction and presentation elsewhere were significantly higher in Group M than Group F (p<0.01).ConclusionDespite more adverse effects, additional analgesic requirement is lower in Group M, and the long-term painless postoperative period accounts for the choice by mothers.

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