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Am J Cardiol. 2012 Jan 1;109(1):36-41. doi: 10.1016/j.amjcard.2011.08.004. Epub 2011 Sep 28.

Presentation in patients with angiographically documented coronary artery disease and type II diabetes mellitus (from the BARI 2D Clinical Trial).

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Kaiser-Permanente Medical Center San Jose, California, USA.


Clinically stable patients with type 2 diabetes mellitus and coronary artery disease are not often thought to present with the symptom of typical angina. The aims of this study were to enumerate the proportion of patients presenting with typical angina or other cardiac symptoms and to elucidate what important clinical variables are associated with the presence of typical angina in patients with type 2 diabetes mellitus and angiographically documented coronary artery disease. Symptoms of angina, anginal equivalents, or an absence of symptoms were obtained using baseline data from the Bypass Angioplasty Revascularization Investigation 2 Diabetes (BARI 2D) trial (n = 2,319). A bivariate analysis stratified by the presence or absence of previous revascularization and logistic regression modeling with a stepwise covariate selection was used. Eighty-two percent of patients had symptoms, while 18% presented asymptomatically. This was further divided approximately into typical angina (1/5), anginal equivalents (1/5), combination (2/5), and asymptomatic (1/5). A history of previous revascularization was a determinant of the type of symptom presentation with regard to the variables gender, age, current insulin use, myocardial jeopardy index score, and use of β blockers. In the multivariate logistic regression analysis, of the available candidate variables, only a history of β-blocker use (odds ratio 1.53, 95% confidence interval 1.24 to 1.94, p <0.0001) and previous percutaneous coronary intervention (odds ratio 1.55, 95% confidence interval 1.24 to 1.94, p <0.0001) had higher odds of an association with typical angina. In conclusion, a large proportion of patients with type 2 diabetes mellitus and coronary artery disease indeed have symptoms. Future studies of long-term outcomes associated with these symptoms are needed.

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