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Heart failure with preserved ejection fraction and skeletal muscle physiology.
Farris, Stephen D; Moussavi-Harami, Farid; Stempien-Otero, April.
Afiliação
  • Farris SD; Department of Medicine, Division of Cardiology, University of Washington School of Medicine, Seattle, WA, USA.
  • Moussavi-Harami F; Department of Medicine, Division of Cardiology, University of Washington School of Medicine, Seattle, WA, USA.
  • Stempien-Otero A; Department of Medicine, Division of Cardiology, University of Washington School of Medicine, Seattle, WA, USA. april@u.washington.edu.
Heart Fail Rev ; 22(2): 141-148, 2017 03.
Article em En | MEDLINE | ID: mdl-28255866
ABSTRACT
Heart failure with preserved ejection fraction (HFpEF) accounts for half of all heart failure in the USA, increases in prevalence with aging, and has no effective therapies. Intriguingly, the pathophysiology of HFpEF has many commonalities with the aged cardiovascular system including reductions in diastolic compliance, chronotropic defects, increased resistance in the peripheral vasculature, and poor energy substrate utilization. Decreased exercise capacity is a cardinal symptom of HFpEF. However, its severity is often out of proportion to changes in cardiac output. This observation has led to studies of muscle function in HFpEF revealing structural, biomechanical, and metabolic changes. These data, while incomplete, support a hypothesis that similar to aging, HFPEF is a systemic process. Understanding the mechanisms leading to exercise intolerance in this condition may lead to strategies to improve morbidity in both HFpEF and aging.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Volume Sistólico / Envelhecimento / Função Ventricular Esquerda / Músculo Esquelético / Remodelação Ventricular / Insuficiência Cardíaca Tipo de estudo: Risk_factors_studies Limite: Humans Idioma: En Revista: Heart Fail Rev Ano de publicação: 2017 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Volume Sistólico / Envelhecimento / Função Ventricular Esquerda / Músculo Esquelético / Remodelação Ventricular / Insuficiência Cardíaca Tipo de estudo: Risk_factors_studies Limite: Humans Idioma: En Revista: Heart Fail Rev Ano de publicação: 2017 Tipo de documento: Article