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REVIEW ARTICLES

Emerging Techniques in the Management of Acute Pain: Epidural Analgesia

Department of Anesthesiology, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania

Address correspondence to Eugene R. Viscusi, MD, Department of Anesthesiology, Thomas Jefferson University, 111 S. 11th Street, Suite G8490, Philadelphia, PA 19107–5092. Address electronic mail to eugene.viscusi{at}jefferson.edu.

Epidural analgesia, often using opioids intraoperatively and postoperatively, is widely accepted as a valuable modality for perioperative pain management. In this review I present data from meta-analyses and recently published trials that evaluate the perioperative use of opioids administered epidurally or parenterally (as-needed or by patient-controlled analgesia) and their effect on outcome. Published effects of perioperative epidural techniques on cardiac and pulmonary function are reviewed. Clinical and practical issues associated with epidural anesthesia and analgesia include the existence of analgesic gaps (often related to technical difficulties with the pump or use of an indwelling catheter), the occurrence of hypotension, and compatibility with anticoagulation therapy. A new treatment option, a single epidural injection of morphine for continuous perioperative analgesia (DepoDur^TM; Endo Pharmaceuticals Inc, Chadds Ford, PA), may reduce some of these problems. Data from recent clinical studies are presented.

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