• Y Saito, S Sakura, T Takatori, and Y Kosaka.
• Department of Anesthesiology, Shimane Medical University, Japan.
• Acta Anaesthesiol Scand. 1993 Jul 1; 37 (5): 513-5.

AbstractWe present a patient with myasthenia gravis who was safely managed by epidural anesthesia during and after thymectomy. An epidural catheter was inserted via the C7-T1 intervertebral space and 2% lidocaine was used during the surgery. The level of analgesia as determined by pinprick extending from C5 to T6. Epidural morphine or morphine and bupivacaine were used for postoperative pain relief. We evaluated ventilatory responses to CO2 and hypoxia after epidural anesthesia with lidocaine or morphine, and during continuous epidural infusion of the mixture of morphine and bupivacaine. Ventilatory responses to CO2 and hypoxia were both depressed following epidural injection of morphine. However, depression of ventilatory responses was not demonstrated following continuous epidural infusion of a mixture of morphine and bupivacaine. This case report suggests that epidural anesthesia is useful as a primary anesthetic and for postoperative pain control in patients with myasthenia gravis.

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