Anaesthesia
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Thirty-five patients were delivered by electric Caesarean section under general or epidural anaesthesia. For postoperative analgesia they received narcotic analgesics as required and either transcutaneous nerve stimulation or an inactive stimulator. ⋯ The epidural patients did not receive any additional benefit from active stimulation, but had the same amount of pain and the same analgesic requirement as patients receiving active stimulation following general anaesthesia. The possible causes for the failure of transcutaneous nerve stimulation after epidural anaesthesia and their implications are discussed.
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Positive pressure created in the epidural space has been used to confirm correct placement of a lumbar epidural catheter in 125 patients.