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J Thorac Cardiovasc Surg 1996;112:142-145
© 1996 Mosby, Inc.

GENERAL THORACIC SURGERY

THE EFFECT OF PREOPERATIVE METHYLPREDNISOLONE ON PULMONARY FUNCTION AND PAIN AFTER LUNG OPERATIONS

Received for publication May 22, 1995 Accepted for publication August 30, 1995. Address for reprints: Dennis Bigler, MD, Department of Anaesthesiology, Gentofte Hospital, Niels Andersens Vej 65, DK-2900 Hellerup, Copenhagen, Denmark.

Abstract

Thirty-six patients undergoing elective thoracotomy with pulmonary resection with the use of combined epidural and general anesthesia were randomized into a double-blind study to receive a single intravenous preoperative dose of methylprednisolone 25 mg/kg body weight or a placebo (saline solution). Postoperative pain relief consisted of epidural morphine 4 mg and paracetamol 1 gm three times a day for 4 days. Postoperative pulmonary function (peak expiratory flow rate, forced expiratory volume in first second, forced vital capacity) was evaluated on days 1, 2, 3, 4, and 7 and after 1 month. The value obtained after 1 month served as the control value. Pain score at rest and during cough was evaluated after 4 and 8 hours and on days 1, 2, 3, and 4. Pulmonary function was reduced after operation to the same degree in the steroid and placebo group: 42% versus 41% for forced expiratory volume in first second and 38% versus 39% for forced vital capacity, compared with control values after 1 month. Pain score was reduced in the steroid group after 4 hours and on day 1 during rest and after 4 and 8 hours and on day 2 during cough, compared with results in the placebo group (p < 0.05). In the steroid group three patients underwent reoperation because of leakage through the chest wall incision. In conclusion, administration of a single preoperative dose of methylprednisolone did not affect the postoperative reduction in pulmonary function after thoracotomy despite attenuated pain response, and the results do not warrant steroid administration before lung operation. (J THORAC CARDIOVASC SURG 1996;112:142-5)

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