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| Publications [#197860] of Daniel B. Mark
Papers Published
- WC Siegel, DB Mark, MA Hlatky, FE Harrell Jr, DB Pryor, JC Barefoot, RB Williams Jr, Clinical correlates and prognostic significance of type A behavior and silent myocardial ischemia on the treadmill.,
The American journal of cardiology, vol. 64 no. 19
(December, 1989),
pp. 1280-3, ISSN 0002-9149
(last updated on 2011/11/29)
Abstract:
Type A patients with coronary artery disease (CAD) tend to ignore or underreport symptoms, especially during challenging tasks such as the treadmill exercise test. To determine whether type A CAD patients might be more likely than type B patients to have silent ischemia during exercise and consequently a worse prognosis, 403 patients with stable CAD who had significant coronary disease on angiography, a positive Bruce protocol treadmill test and a structured interview to assess type A behavior were studied. Median follow-up time was 6 years. Type A patients were more likely to experience silent ischemia during exercise than were type B patients (35 vs 25%, p = 0.05). Patients with silent ischemia during exercise had a history of fewer anginal episodes/week, and type A patients with silent ischemia were less likely to have had a history of typical angina. However, using the Cox model, there were no significant differences in survival between type A patients and B patients with silent ischemia (4-year survival 86 vs 79%, p = 0.44) and no significant differences in survival between type A patients with silent ischemia and type A patients with symptomatic ischemia (6-year survival 86 vs 80%, p = 0.59). Similar results were obtained for infarction-free survival. Type A patients are more likely than type B patients to have silent ischemia during exercise, but long-term survival is not affected.
Keywords:
Angina Pectoris • Coronary Disease • Electrocardiography • Exercise Test* • Humans • Prognosis • Survival Analysis • Time Factors • Type A Personality* • complications • diagnosis • etiology • psychology*
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