Failure of epidural morphine to relieve pain in labour.
Lumbar epidural injections of 2 mg preservative-free morphine were given to 10 subjects in established labour. Assessment of pain using a visual analogue scoring system revealed no appreciable relief of pain 30 min after morphine infection. Analgesia was subsequently provided by epidural injection of 8 ml bupivacaine 0.375%. Failure of epidural 2 mg in the treatment of severe pain other than labour. Possible explanations for this discrepancy are discussed.
D000767:Anesthesia, Epidural; D000773:Anesthesia, Obstetrical; D002045:Bupivacaine; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D009020:Morphine; D010146:Pain / Q000175:diagnosis / Q000503:physiopathology; D011247:Pregnancy; D013997:Time Factors
D009020:Morphine; D002045:Bupivacaine