Abstract
The metabolic syndrome is associated with high risk for long-term coronary artery disease mortality. However, few studies have examined the prognostic importance of the metabolic syndrome with and without hypertension. The data of 1133 nondiabetic patients who underwent complete revascularization were analyzed. The patients were categorized by the presence of the metabolic syndrome using the modified American Heart Association/National Heart, Lung, and Blood Institute statement and by the presence of hypertension. All patients were divided into four groups: neither the metabolic syndrome nor hypertension (group 1); the metabolic syndrome without hypertension (group 2); hypertension without the metabolic syndrome (group 3); and both the metabolic syndrome and hypertension (group 4). Cox proportional hazards were used in adjusted analyses for all-cause and cardiac mortality, as well as for the composite incidence of fatal and nonfatal stroke. The progress of 276 (24.4%) patients in group 1, 413 (36.5%) in group 2, 105 (9.3%) in group 3, and 339 (29.9%) in group 4 was analyzed. The mean follow-up was 10.4 +/- 3.4 years. Patients in group 4 had a higher risk of all-cause mortality (hazard ratio 1.78, P = 0.004). In addition, patients in groups 2 and 4 had a higher risk of cardiac mortality (group 2: hazard ratio 2.84, P = 0.04, group 4: hazard ratio 3.91, P = 0.001) and stroke (group 2: hazard ratio 2.46, P = 0.03, group 4: hazard ratio 2.09, P = 0.03). The metabolic syndrome both with and without hypertension is associated with increased risk of cardiac mortality and stroke incidence in patients who underwent complete coronary revascularization.
Published Version
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