Contribution of extradural temperature to shivering during extradural anaesthesia.
Thirty patients having postpartum tubal ligation under extradural anaesthesia were studied. All received bupivacaine at 4 degrees C initially and the incidence of shivering (47%), and the extradural temperatures measured with a small thermistor threaded into the extradural catheter, were recorded. To eight patients in whom the resultant shivering was marked, further bupivacaine warmed to 41 degrees C was injected. In four of these patients, shivering was stopped. The results suggest that thermosensitive tissue within the spinal canal contributes to the shivering observed in association with extradural anaesthesia.
D000328:Adult; D000767:Anesthesia, Epidural; D001831:Body Temperature; D002045:Bupivacaine / Q000008:administration & dosage; D004824:Epidural Space; D005260:Female; D006358:Hot Temperature; D006801:Humans; D012768:Shivering
D002045:Bupivacaine