Abstract
The prognosis of dilated cardiomyopathy due to hypertension (HT-DCM) is surprisingly unknown, particularly in the absence of coronary disease and diabetes. We aimed at investigating the long-term outcome and the predictors of mortality in patients with left ventricular systolic dysfunction exclusively due to hypertension. From October 1995 to May 2001, 90 consecutive patients with echocardiographic fractional shortening (FS) <30% and 29 control patients with FS ⩾30% were included. Obstructive coronary disease was excluded by dipyridamole myocardial perfusion imaging in all patients and coronary angiography in 60. After a mean follow-up of 4.3±1.6 years, the total mortality rate of HT-DCM was twice as much higher than that of patients without left ventricular systolic dysfunction (P=0.01). In HT-DCM, the 5-year mortality rate was 26%. Univariate analyses selected age and creatinine for being positively related to mortality, and body mass index, FS and blood pressure during follow-up for being negatively related to mortality. Neither the improvement of left ventricular FS nor the decrease in left ventricular mass index was related to survival. Multivariate analysis identified (hazard ratio; 95% confidence interval) age (1.08; 1.02–1.13), body mass index (0.86; 0.75–0.98), and baseline FS (0.88; 0.78–0.98) as independent predictors of mortality. In conclusion, poor survival in HT-DCM can be anticipated by the severity of left ventricular systolic dysfunction and advanced age. Instead of ominous signs, high blood pressure and body mass may predict a more favourable prognosis.
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de Carvalho Frimm, C., Soufen, H., Koike, M. et al. The long-term outcome of patients with hypertensive cardiomyopathy. J Hum Hypertens 19, 393–400 (2005). https://doi.org/10.1038/sj.jhh.1001836
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DOI: https://doi.org/10.1038/sj.jhh.1001836
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