• Annals of surgery · Jun 2021

    Comparative Study

    Elective Surgery for Diverticulitis and the Risk of Recurrence and Ostomy.

    • Lucas W Thornblade, Vlad V Simianu, Giana H Davidson, and David R Flum.
    • Department of Surgery, City of Hope National Medical Center, Duarte, CA.
    • Ann. Surg. 2021 Jun 1; 273 (6): 115711641157-1164.

    ObjectiveTo assess the comparative risk of recurrence and ostomy after elective resection or medical therapy for uncomplicated diverticulitis, incorporating outpatient episodes of recurrence.BackgroundWhile surgeons historically recommended colon resection for uncomplicated diverticulitis to reduce the risk of recurrence or colostomy, no prior studies have quantified this risk when considering outpatient episodes of disease. It remains to be determined whether surgery actually decreases those risks.MethodsRetrospective cohort study employing an adjusted time-to-event analysis to assess the relationship of medical or surgical treatment with diverticulitis recurrence and/or receipt of an ostomy. Subjects were adults with ≥1 year continuous enrollment treated for ≥2 episodes of uncomplicated diverticulitis from a nationwide commercial claims dataset (2008-2014).ResultsOf 12,073 patients (mean age 56 ± 14 yr, 59% women), 19% underwent elective surgery and 81% were treated by medical therapy on their second treatment encounter for uncomplicated diverticulitis. At 1 year, patients treated by elective surgery had lower rates of recurrence (6%) versus those treated by medical therapy (32%) [15% vs 61% at 5 years, adjusted hazard ratio 0.17 (95% confidence interval: 0.15-0.20)]. At 1 year, the rate of ostomy after both treatments was low [surgery (inclusive of stoma related to the elective colectomy), 4.0%; medical therapy, 1.6%].ConclusionsElective resection for uncomplicated diverticulitis decreases the risk of recurrence, still 6% to 15% will recur within 5 years of surgery. The risk of ostomy is not lower after elective resection, and considering colostomies related to resection, ostomy prevention should not be considered an appropriate indication for elective surgery.Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

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