• J. Am. Coll. Surg. · Apr 2019

    First, Do No Harm: Rethinking Routine Diversion in Sphincter-Preserving Rectal Cancer Resection.

    • William C Chapman, Melanie Subramanian, Senthil Jayarajan, Bilal Makhdoom, Matthew G Mutch, Steven Hunt, Matthew L Silviera, Sean C Glasgow, Margaret A Olsen, and Paul E Wise.
    • Department of Surgery, Division of General Surgery, Washington University School of Medicine, St Louis, MO. Electronic address: chapmanjr@wustl.edu.
    • J. Am. Coll. Surg. 2019 Apr 1; 228 (4): 547-556.e8.

    BackgroundAlthough diverting stomas have reduced anastomotic leak rates after sphincter-preserving proctectomy in some series, the effectiveness of routine diversion among a broad population of rectal cancer patients remains controversial. We hypothesized that routine temporary diversion is not associated with decreased rates of leak or reintervention in cancer patients at large undergoing sphincter-sparing procedures.Study DesignThe Florida State Inpatient Database (AHRQ, Healthcare Cost and Utilization Project) was queried for patients undergoing sphincter-preserving proctectomy for cancer (2005 to 2014). Matched cohorts defined by diversion status were created using propensity scores based on patient and hospital characteristics. Incidence of anastomotic leak, nonelective reintervention, and readmission were compared, and cumulative 90-day inpatient costs were calculated.ResultsOf 8,620 eligible sphincter-sparing proctectomy patients, 1,992 matched pairs were analyzed. Leak rates did not significantly vary between groups (4.5% vs 4.3%; p = 0.76), but diversion was associated with significantly higher odds of nonelective reintervention (2.37; 95% CI 1.90 to 2.96) and readmission (1.55; 95% CI 1.33 to 1.81) compared with undiverted patients. Median costs were higher among those diverted (US$21,325 vs US$15,050; p < 0.01).ConclusionsNo association between diversion and anastomotic leak was found. However, temporary diversion was associated with increased incidence of nonelective reinterventions, readmissions, and higher costs. We therefore challenge the paradigm of routine diversion in rectal cancer operations. Additional study is needed to identify which patients would benefit most from diversion.Copyright © 2019 American College of Surgeons. Published by Elsevier Inc. All rights reserved.

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