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Reviews in Cardiovascular Medicine  2020, Vol. 21 Issue (4): 531-540     DOI: 10.31083/j.rcm.2020.04.154
Special Issue: Heart failure pathogenesis and management: heart failure with preserved ejection fraction
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Epidemiology and pathogenesis of heart failure with preserved ejection fraction
Nandini Nair1, *()
1Division of Cardiology, Department of Medicine, Texas Tech Health Sciences Center, Lubbock, 79430, TX, USA
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Abstract:
Heart failure (HF) is a complex syndrome that affects approximately 6.5 million adults in the United States. About half of the 6.5 million adults with HF are estimated to be individuals with heart failure with preserved ejection fraction (HFpEF). It is a common cause for poor quality of life, increased health-care resource utilization, and early mortality. HF incidence has risen to epidemic proportions in the recent years. This review attempts to address the epidemiology and pathophysiology of HFpEF. The incidence of HFpEF increased from 48% to 57% from 2000 to 2007 with a slight decrease in 2010 to 52%. The temporal trends in heart failure show an overall stable incidence of HF over the last two decades with increasing incidence of HFpEF and decreasing HFrEF incidence. Many etiologies contribute to the development of HFpEF which makes the treatment very challenging. Pathophysiology of HFpEF is multifaceted stemming from several disease-specific aspects of inflammation and endothelial function, cardiomyocyte hypertrophy and fibrosis, ventricular-vascular uncoupling, pulmonary hypertension and chronotropic incompetence. Hence identifying the risk factors and etiologies is imperative to achieve optimal outcomes in this population. Newer insights into myocardial remodeling have led to an interesting finding of abnormal fibroblasts in HFpEF which are apoptosis resistant and initiate the development of an abnormal myocardial matrix resulting in initiation and progression of the disease. Upregulation of ROS has also been implicated in HFpEF. Further investigation could provide new avenues to target therapeutics specifically to stop initiation and progression of fibrosis.
Key words:  HFpEF      diastolic dysfunction      pathophysiology      oxidative stress      myocardial remodeling     
Submitted:  28 July 2020      Revised:  25 October 2020      Accepted:  27 October 2020      Published:  30 December 2020     
*Corresponding Author(s):  Nandini Nair     E-mail:  Nandini.nair@gmail.com

Cite this article: 

Nandini Nair. Epidemiology and pathogenesis of heart failure with preserved ejection fraction. Reviews in Cardiovascular Medicine, 2020, 21(4): 531-540.

URL: 

https://rcm.imrpress.com/EN/10.31083/j.rcm.2020.04.154     OR     https://rcm.imrpress.com/EN/Y2020/V21/I4/531

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