An exaggerated increase in blood pressure with exercise does not predict mortality or severe cardiovascular events in women referred for exercise echocardiography for clinical reasons

Abstract

Background and objectivesThe association between an exaggerated systolic blood pressure increase with exercise (EBPIE) and the probability of cardiovascular events is controversial and poorly studied in the female population. Our aim was to determine the possible association between EBPIE on one hand and mortality and cardiovascular events on the other in women referred for exercise echocardiography due to known or suspected coronary artery disease. Patients and methodsA total of 3942 women with known or suspected coronary artery disease underwent exercise echocardiography. We defined EBPIE as a ≥70mmHg increase in systolic blood pressure with exercise. The study endpoints were overall and cardiac mortality, acute myocardial infarction (MI), stroke and coronary revascularisation procedures. ResultsA total of 332 women developed EBPIE during the test. During the follow-up, 458 deaths (162 of cardiac origin), 212 MIs, 89 strokes and 345 coronary revascularisation procedures were recorded. The annual rates of overall and cardiac mortality were lower in the patient subgroup with EBPIE (0.15% vs. 2.3%, p=.02 and 0.01% vs. 0.2%, p=.015, respectively). There were no significant differences in the rates of MI, stroke and the need for coronary revascularisation procedures, which occurred in 1.1%, 0.43% and 2.24% of the patients with EBPIE, respectively, and occurred in 0.09%, 0.05% and 0.13% of the women without EBPIE (p=.66; p=.57; p=.19, respectively). After a multivariate adjustment, EBPIE was not a predictor of mortality or cardiovascular events. ConclusionsEBPIE is not associated with mortality or severe cardiovascular events in women with known or suspected coronary artery disease.