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Canadian Journal of Anesthesia, Vol 39, 71-74, Copyright © 1992 by Canadian Anesthesiologists' Society

ARTICLES

Early respiratory depression during caesarean section following epidural meperidine

OP Rosaeg, V Suderman and RW Yarnell
Ottawa Civic Hospital, Department of Anaesthesia, University of Ottawa, Ontario.

A case of respiratory depression which occurred following administration of epidural meperidine during Caesarean section is described. Epidural meperidine, 75 mg (10 mg.ml-1) was given after delivery of the infant to provide postoperative analgesia. Oxygen desaturation (SaO2 90%) and a decrease in respiratory rate (4.min-1) were noted 30 min after epidural meperidine was administered. Naloxone, 0.1 mg, was given iv which resulted in prompt improvement in both respiratory rate and oxygen saturation. Vascular absorption of meperidine from the epidural venous plexus is the most probable explanation for this case of early respiratory depression. We recommend a maximum bolus dose of 50 mg of epidural meperidine for pain management after Caesarean section. It is also important to monitor oxygen saturation continuously during the intraoperative period, and to monitor the patient closely in the recovery room for at least one hour for evidence of respiratory depression.




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Copyright © 1992 by the Canadian Anesthesiologists' Society.