SERIOUS NONFATAL COMPLICATIONS ASSOCIATED WITH EXTRADURAL BLOCK IN OBSTETRIC PRACTICE

Summary: A retrospective study of serious non-fatal complications of extradural block in obstetric practice was carried out using a postal questionnaire. Two hundred and three obstetric units in the United Kingdom (responsible for 2580000 deliveries from 1982 to 1986 inclusive) responded. A total of 505 000 extradural blocks were performed, 84% for relief of pain in labour and 16% for Caesarean section. Of 108 events reported, five were associated with permanent disability. Neuropathy involving a single spinal nerve, acute toxicity from the local anaesthetic, and problems associated with accidental dural puncture were the commonest complications. This investigation indicates the need for a prospective study. Although rare, serious complications could be reduced further by meticulous technique, while early diagnosis and treatment of untoward events would reduce the incidence of permanent disability. © 1990 Copyright: 1990 British Journal of Anaesthesia.