It is concluded that no long-term analgesia could be demonstrated by a preincisional IINB performed during spinal anaesthesia in day-surgery inguinal herniorrhaphy patients. Thus, reduced analgesic requirement was seen only for about 6 h postoperatively.
Only a relatively short immediate analgesic benefit could be demonstrated by a combination of IINB with spinal anaesthesia compared with IINB combined with general anaesthesia. The use of general anaesthesia facilitated an earlier postoperative discharge than spinal anaesthesia.
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