251. Comparison of Patient Characteristics and Course of Hypertensive Hypokinetic Cardiomyopathy Versus Idiopathic Dilated Cardiomyopathy.
- Author
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Bobbo M, Pinamonti B, Merlo M, Stolfo D, Iorio A, Ramani F, Barbati G, Carriere C, Massa L, Poli S, Scapol S, Gigli M, Di Lenarda A, and Sinagra G
- Subjects
- Adrenergic beta-Antagonists therapeutic use, Adult, Aged, Amiodarone therapeutic use, Angiotensin Receptor Antagonists therapeutic use, Angiotensin-Converting Enzyme Inhibitors therapeutic use, Anti-Arrhythmia Agents therapeutic use, Cardiomyopathies etiology, Cardiomyopathies physiopathology, Cardiomyopathies therapy, Cardiomyopathy, Dilated therapy, Cause of Death, Disease Progression, Female, Heart Failure etiology, Heart Failure therapy, Heart Transplantation, Heart-Assist Devices, Humans, Hypertension complications, Hypertrophy, Left Ventricular etiology, Hypertrophy, Left Ventricular therapy, Male, Middle Aged, Mineralocorticoid Receptor Antagonists therapeutic use, Mortality, Retrospective Studies, Stroke Volume, Tachycardia, Ventricular epidemiology, Ventricular Dysfunction, Left etiology, Ventricular Dysfunction, Left therapy, Ventricular Fibrillation epidemiology, Ventricular Remodeling, Cardiomyopathy, Dilated physiopathology, Heart Failure physiopathology, Hypertrophy, Left Ventricular physiopathology, Ventricular Dysfunction, Left physiopathology
- Abstract
Hypertensive hypokinetic cardiomyopathy (HHC) is defined by left ventricular (LV) systolic dysfunction with a history of systemic hypertension as the only possible cause. Although commonly encountered in clinical practice, its characterization and differences with true idiopathic dilated cardiomyopathy (IDC) are lacking. The aim of this study was to characterize the clinical instrumental features and the natural history of HHC. We analyzed the data of 4,191 patients referred to our center for newly diagnosed LV systolic dysfunction from 2005 to 2010. Of them, 310 presented idiopathic LV systolic dysfunction (LV ejection fraction <50%): 136 (44%) had a history of systemic hypertension and were defined HHC. The remaining 174 patients were considered IDC. Compared with patients with IDC, those with HHC were older (63 ± 11 vs 47 ± 14 years, p <0.001), with worse comorbidity profile, higher blood pressure, and increased LV mass. During follow-up, patients with HHC showed earlier and higher proportion of LV reverse remodeling (46% vs 21% at 6 months' follow-up). Moreover, they had a better long-term survival free from cardiovascular death/ventricular assist device/heart transplant/malignant ventricular arrhythmias (5.1 vs 12.6 in HHC and IDC, p = 0.03). Indeed, their mortality was mainly driven by noncardiovascular causes (at 10 years 9.6% vs 1.7% in HHC and IDC, p <0.001). In conclusion, HHC has a high prevalence among patients with "idiopathic" LV dysfunction. The natural history of patients with HHC is characterized by a rapid response to optimal therapy for heart failure, a favorable cardiovascular outcome, and a relevant incidence of noncardiovascular events., (Copyright © 2016 Elsevier Inc. All rights reserved.)
- Published
- 2017
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