• Lancet · Apr 2002

    Randomized Controlled Trial Multicenter Study Clinical Trial

    Epidural anaesthesia and analgesia and outcome of major surgery: a randomised trial.

    Perioperative epidural analgesia in high-risk patients undergoing major abdominal surgery improves analgesia but doesnot have other morbidity or mortality benefits.

    • John R A Rigg, Konrad Jamrozik, Paul S Myles, Brendan S Silbert, Phillip J Peyton, Richard W Parsons, Karen S Collins, and MASTER Anaethesia Trial Study Group.
    • Department of Public Health, University of Western Australia, Western, Crawley, Australia. john.rigg@sjog.org.au
    • Lancet. 2002 Apr 13;359(9314):1276-82.

    BackgroundEpidural block is widely used to manage major abdominal surgery and postoperative analgesia, but its risks and benefits are uncertain. We compared adverse outcomes in high-risk patients managed for major surgery with epidural block or alternative analgesic regimens with general anaesthesia in a multicentre randomised trial.Methods915 patients undergoing major abdominal surgery with one of nine defined comorbid states to identify high-risk status were randomly assigned intraoperative epidural anaesthesia and postoperative epidural analgesia for 72 h with general anaesthesia (site of epidural selected to provide optimum block) or control. The primary endpoint was death at 30 days or major postsurgical morbidity. Analysis by intention to treat involved 447 patients assigned epidural and 441 control.Findings255 patients (57.1%) in the epidural group and 268 (60.7%) in the control group had at least one morbidity endpoint or died (p=0.29). Mortality at 30 days was low in both groups (epidural 23 [5.1%], control 19 [4.3%], p=0.67). Only one of eight categories of morbid endpoints in individual systems (respiratory failure) occurred less frequently in patients managed with epidural techniques (23% vs 30%, p=0.02). Postoperative epidural analgesia was associated with lower pain scores during the first 3 postoperative days. There were no major adverse consequences of epidural-catheter insertion.InterpretationMost adverse morbid outcomes in high-risk patients undergoing major abdominal surgery are not reduced by use of combined epidural and general anaesthesia and postoperative epidural analgesia. However, the improvement in analgesia, reduction in respiratory failure, and the low risk of serious adverse consequences suggest that many high-risk patients undergoing major intra-abdominal surgery will receive substantial benefit from combined general and epidural anaesthesia intraoperatively with continuing postoperative epidural analgesia.

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    This article appears in the collection: Landmark articles in Anesthesia.



    Perioperative epidural analgesia in high-risk patients undergoing major abdominal surgery improves analgesia but doesnot have other morbidity or mortality benefits.

    Daniel Jolley  Daniel Jolley

    Note that the reported ’reduction in respiratory failure’ was entirely due to a small difference in post-op ventilation duration in the ICU between the groups. Significant, but perhaps not clinically remarkable.

    Daniel Jolley  Daniel Jolley
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