The Impact of Intrathecal Morphine Versus Continuous Epidural Analgesia on Return of Bowel Function in Patients Undergoing Laparoscopic Ileal Conduit

Patients in the ITM group underwent intrathecal injection with 0.2 mg morphine after admission to the operating room.Mechanical ventilation was initiated in pressure-regulated volume control (PRVC) mode after induction. Ventilator settings (Aestiva; GE Healthcare, Waukesha, Wisconsin, USA) were as follows: tidal volume 6-8 ml kg-1, positive end-expiratory pressure (PEEP) 0 cmH2O, inspiratory-to-expiratory ratio 1:2, respiratory rate 16 beats per minute (BPM), and inspired oxygen concentration 41%.

Patients in the EA group underwent epidural anesthesia after admission to the operating room. Following successful epidural puncture, 3 ml of 2% lidocaine was administered. Once the block level was confirmed, the epidural analgesia pump was activated, delivering 8 ml/h of 0.1% ropivacaine.Mechanical ventilation was initiated in pressure-regulated volume control (PRVC) mode after induction. Ventilator settings (Aestiva; GE Healthcare, Waukesha, Wisconsin, USA) were as follows: tidal volume 6-8 ml kg-1, positive end-expiratory pressure (PEEP) 0 cmH2O, inspiratory-to-expiratory ratio 1:2, respiratory rate 16 beats per minute (BPM), and inspired oxygen concentration 41%.