scholarly journals Mechanisms of exercise intolerance in patients with heart failure and preserved ejection fraction. Part II: The role of right heart chambers, vascular system and skeletal muscles

Kardiologiia ◽  
2019 ◽  
Vol 59 (8S) ◽  
pp. 4-14
Author(s):  
A. G. Ovchinnikov ◽  
A. V. Potekhina ◽  
N. M. Ibragimova ◽  
E. A. Barabanova ◽  
E. N. Yushchyuk ◽  
...  

The main clinical manifestation of heart failure with preserved ejection fraction is poor exercise tolerance. In addi-tion to the dysfunction of the left heart chambers, which were presented in the first part of this review, many other disorders are involved in poor exercise tolerance in such patients: impairments of the right heart, vascular system and skeletal muscle. The second part of this review presents the mechanisms for the development of these disorders, as well as possible ways to correct them.

2015 ◽  
Vol 9 ◽  
pp. CMC.S21372 ◽  
Author(s):  
Muhammad Asrar Ul Haq ◽  
Cheng Yee Goh ◽  
Itamar Levinger ◽  
Chiew Wong ◽  
David L. Hare

Reduced exercise tolerance is an independent predictor of hospital readmission and mortality in patients with heart failure (HF). Exercise training for HF patients is well established as an adjunct therapy, and there is sufficient evidence to support the favorable role of exercise training programs for HF patients over and above the optimal medical therapy. Some of the documented benefits include improved functional capacity, quality of life (QoL), fatigue, and dyspnea. Major trials to assess exercise training in HF have, however, focused on heart failure with reduced ejection fraction (HFREF). At least half of the patients presenting with HF have heart failure with preserved ejection fraction (HFPEF) and experience similar symptoms of exercise intolerance, dyspnea, and early fatigue, and similar mortality risk and rehospitalization rates. The role of exercise training in the management of HFPEF remains less clear. This article provides a brief overview of pathophysiology of reduced exercise tolerance in HFREF and heart failure with preserved ejection fraction (HFPEF), and summarizes the evidence and mechanisms by which exercise training can improve symptoms and HF. Clinical and practical aspects of exercise training prescription are also discussed.


2018 ◽  
Vol 131 (12) ◽  
pp. 1473-1481 ◽  
Author(s):  
Phillip H. Lam ◽  
Neha Gupta ◽  
Daniel J. Dooley ◽  
Steven Singh ◽  
Prakash Deedwania ◽  
...  

Author(s):  
Marco Guazzi ◽  
Robert Naeije

The health burden of heart failure with preserved ejection fraction is increasingly recognized. Despite improvements in diagnostic algorithms and established knowledge on the clinical trajectory, effective treatment options for heart failure with preserved ejection fraction remain limited, mainly because of the high mechanistic heterogeneity. Diagnostic scores, big data, and phenomapping categorization are proposed as key steps needed for progress. In the meantime, advancements in imaging techniques combined to high-fidelity pressure signaling analysis have uncovered right ventricular dysfunction as a mediator of heart failure with preserved ejection fraction progression and as major independent determinant of poor outcome. This review summarizes the current understanding of the pathophysiology of right ventricular dysfunction in heart failure with preserved ejection fraction covering the different right heart phenotypes and offering perspectives on new treatments targeting the right ventricle in its function and geometry.


Hypertension ◽  
2013 ◽  
Vol 61 (1) ◽  
pp. 112-119 ◽  
Author(s):  
Dalane W. Kitzman ◽  
David M. Herrington ◽  
Peter H. Brubaker ◽  
J. Brian Moore ◽  
Joel Eggebeen ◽  
...  

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