[Prolonged peridural morphine analgesia in the postoperative period]

Morphine in doses of 10, 13, 15 and 20 mg was injected into the peripheral space of 129 operated women for postoperative analgesia. In 40 women after cesarean section the average time of analgesia was 34.5 h, in women after gynecological operations it was 23.6 h following the injection of 10 mg of morphine. In women subjected to gynecological operations the injection of 13 mg of morphine gave anesthesia for 28.5 h, 15 mg-for 29.1 h and 20 mg-for 28.8 h at an average. The injection of 15 and 20 mg of morphine increased the risk of intoxication.