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Ann Intern Med. 1994 Apr 1;120(7):559-66.

Gender differences in the noninvasive evaluation and management of patients with suspected coronary artery disease.

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1
St. Louis University School of Medicine, Missouri.

Abstract

OBJECTIVE:

To determine if gender-based differences exist in the post-test management and clinical outcome of patients with clinically suspected coronary artery disease who have stress electrocardiographic or myocardial perfusion imaging evaluation.

DESIGN:

Retrospective cohort study.

SETTING:

University medical center.

PATIENTS:

From a cohort of 3975 middle-aged patients referred for outpatient stress testing, 840 (47% women) were evaluated noninvasively for clinically suspected coronary artery disease.

MEASUREMENTS:

The rates of subsequent diagnostic procedures and the incidence of subsequent coronary revascularization, myocardial infarction, or cardiac death were determined for women and men.

RESULTS:

Pretest cardiac risk profiles were similar, except hypertension and hypercholesterolemia were more frequent in women. Atypical angina was more common in women than in men (57.5% compared with 44.5%, respectively; P < 0.001). Rates of initial test positivity (defined as exercise-induced horizontal or downsloping ST-segment depression > or = 1.0 mm or > or = 1 reversible thallium-201 defect) were similar in women and men. Compared with men, most women with an initial positive test result had no additional coronary artery disease evaluation (62.3% compared with 38.0%; P = 0.002). Coronary revascularization procedures were done more frequently in men (4.9% [22 of 449] compared with 2.0% [8 of 391]; P = 0.03). Cardiac death or myocardial infarction occurred more often in women during 2 years of follow-up (6.9% [27 of 391] compared with 2.4% [11 of 449]; P = 0.002).

CONCLUSIONS:

Women with suspected coronary artery disease have fewer additional diagnostic tests than men after an initial abnormal noninvasive stress test result, even though the incidence of typical angina, cardiac risk factors, and initial diagnostic test positivity rates are similar.

[Indexed for MEDLINE]

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