Respiratory Depression Following Intrathecal Morphine (Abstract)
Profound respiratory depression has been reported by several authors after intrathecal morphine. To determine if these usually delayed accidents could be prevented, we investigated the C02 -response curves in two groups of patients. Capnographic monitoring was carried out in group 1, which consisted of seven postoperative patients who each received 5 mg morphine intrathecally. These patients were held in a 30° head-up position until termination of analgesia. Group 2 consisted of six postoperative patients who received 2 mg morphine intrathecally. These patients were positioned with the head up at 30° for 3 h then lowered to the supine position for 1 h.