Diseases of the Colon & Rectum

Skip Navigation LinksHome > December 2004 - Volume 47 - Issue 12 > Azathioprine or Ileocolic Resection for Steroid-Dependent Te...
Diseases of the Colon & Rectum:
doi: 10.1007/s10350-004-0725-6
Original Contributions: PDF Only

Azathioprine or Ileocolic Resection for Steroid-Dependent Terminal Ileal Crohn's Disease? A Markov Analysis.

Kennedy, Erin D. M.D.; Urbach, David R. M.D.; Krahn, Murray D. M.D.; Steinhart, Hillary A. M.D.; Cohen, Zane M.D.; McLeod, Robin S. M.D.

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INTRODUCTION: The objective of this study was to determine whether initial azathioprine therapy, followed by ileocolic resection if azathioprine fails, or initial ileocolic resection without a trial of azathioprine is the preferred treatment strategy in steroid-dependent, terminal ileal Crohn's disease.

METHODS: A Markov, decision analytic model was developed to simulate a 36-month course for a patient with steroid-dependent, terminal ileal Crohn's disease who would initially take azathioprine or have ileocolic resection. Clinically important outcomes in the model included side effects and effectiveness of azathioprine and postoperative complications, mortality, and recurrence following ileocolic resection. The probabilities and utilities for these variables were derived from previously published studies.

RESULTS: Initial azathioprine therapy offered a relatively small benefit of 0.45 quality-adjusted life-months over initial ileocolic resection. The model was sensitive to utility for being symptom-free on azathioprine and utility for being symptom-free postoperatively.

CONCLUSIONS: Initial azathioprine therapy and initial ileocolic resection are both reasonable treatment strategies in this setting. The preferred treatment strategy is highly dependent on the quality of life that can be achieved with each treatment option. Therefore, individual response and symptom control with each treatment must be strongly considered in this treatment decision.

(C) The ASCRS 2004


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