Abstract
High thoracic epidural anesthesia (TEA) is increasingly often used in combination with general anesthesia for major thoracic and abdominal surgery. TEA leads to sympatholysis of cardiac efferences leading to improved myocardial oxygen balance, which is in part due to vasodilation of atherosclerotic coronary vessels. To provide the full benefit of TEA, it is important to extend it as patient-controlled epidural analgesia in the postoperative period. If adequate vascular volume is maintained, hypotension is less frequent after TEA than after lumbar epidural anesthesia. However, in combination with general anesthesia, it may be more frequent and more severe. Treatment of hypotension is sometimes difficult and may require the use of nonadrenergic vasoconstrictors (eg, vasopressin). Copyright © 2000 by W.B. Saunders Company
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