• Pearl Zakroysky, Wai-Ee Thai, Roderick C Deaño, Sandeep Basnet, OnandiaZurine GalvanZGCardiac MR PET CT Program, Division of Cardiology and Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts., Sachin Gandhi, Ahmed Tawakol, James K Min, and Quynh A Truong.
• Massachusetts General Hospital Biostatistics Center, Harvard Medical School, Boston, Massachusetts.
• Am. J. Med. 2015 Mar 1; 128 (3): 303-311.

BackgroundSteroids are anti-inflammatory agents commonly used to treat inflammatory bowel disease. Inflammation plays a critical role in the pathophysiology of both inflammatory bowel disease and acute coronary syndrome. We examined the relationship between steroid use in patients with inflammatory bowel disease and acute coronary syndrome.MethodsIn 177 patients with inflammatory bowel disease (mean age 67 years, 75% male, 44% Crohn's disease, 56% ulcerative colitis), we performed a 1:2 case-control study matched for age, sex, and inflammatory bowel disease type, and compared 59 patients with inflammatory bowel disease with acute coronary syndrome to 118 patients with inflammatory bowel disease without acute coronary syndrome. Steroid use was defined as current or prior exposure. Acute coronary syndrome was defined as myocardial infarction or unstable angina, confirmed by cardiac biomarkers and coronary angiography.ResultsIn patients with inflammatory bowel disease, 34% with acute coronary syndrome had exposure to steroids, vs 58% without acute coronary syndrome (P < .01). Steroid exposure reduced the adjusted odds of acute coronary syndrome by 82% (odds ratio [OR] 0.39; 95% confidence interval [CI], 0.20-0.74; adjusted OR 0.18; 95% CI, 0.06-0.51) in patients with inflammatory bowel disease, 77% in Crohn's disease (OR 0.36; 95% CI, 0.14-0.92; adjusted OR 0.23; 95% CI, 0.06-0.98), and 78% in ulcerative colitis (OR 0.41; 95% CI, 0.16-1.04; adjusted OR 0.22; 95% CI, 0.06-0.90). There was no association between other inflammatory bowel disease medications and acute coronary syndrome.ConclusionsIn patients with inflammatory bowel disease, steroid use significantly reduces the odds of acute coronary syndrome. These findings provide further mechanistic insight into the inflammatory processes involved in inflammatory bowel disease and acute coronary syndrome.Copyright © 2015 Elsevier Inc. All rights reserved.

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