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  • Title: [Heart failure caused by severe systolic ventricular dysfunction of hypertensive origin. Long-term clinical and functional course].
    Author: Anguita M, Castillo JC, Ramírez A, Siles JR, Ojeda S, Mesa D, Franco M, Vallés F.
    Journal: Rev Esp Cardiol; 2000 Jul; 53(7):927-31. PubMed ID: 10944991.
    Abstract:
    AIMS: The aims of our study were to evaluate survival and evolution of functional class and ventricular function in patients with severe congestive heart failure due to dilated cardiomyopathy. METHODS: Inclusion criteria were: class III or IV heart failure, dilated left ventricle with ejection fraction < 40%, history of poor controlled hypertension, and exclusion of other etiologies for heart failure. We studied 17 patients with these features; mean age was 64 +/- 7 years and 70% were male. They were followed up during a mean period of 3.3 +/- 1 years (2 to 6; median 3 years). RESULTS: Baseline left ventricular ejection fraction was 30 +/- 5% (20 to 40); 35% of patients were in functional class III and 65% in class IV; 100% of patients received ACE inhibitors and diuretics, 53% betablockers, and 35% calcium-antagonists. Survival was 100%. Left ventricular ejection fraction increased from 30 +/- 5% to 44 +/- 11% at one year, to 50 +/- 11% at 3 years and 51 +/- 10% at the end of follow-up (p < 0.001). This improvement was mainly due to a reduction in systolic left ventricular diameter (from 51 +/- 4 mm to 42 +/- 11 mm, p < 0.01), since diastolic diameter did not significantly changed (63 +/- 4 to 59 +/- 11 mm). CONCLUSIONS: The evolution of severe systolic left ventricular dysfunction due to arterial hypertension is favourable at long-term, with null mortality and clinical ejection fraction and functional improvement. Nevertheless, the persistence of left ventricular dilatation suggests that myocardial damage caused by chronic pressure overload does not disappear.
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