Korean J Intern Med > Volume 41(5); 2026 > Article
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Korean J Intern Med. 2026;41(5):819-830.         doi: https://doi.org/10.3904/kjim.2026.086
Heart failure with preserved ejection fraction in women: a sex-specific clinical review
Soo-Jin Kim1, and Mi-Seung Shin2
11Division of Cardiology, Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea
2Division of Cardiology, Department of Internal Medicine, Gachon University Gil Medical Center, Gachon University College of Medicine, Incheon, Korea
Corresponding Author: Mi-Seung Shin  , Tel: +82-32-460-3663, Fax: +82-32-469-1906, Email: msshin@gilhospital.com
Received: February 18, 2026;   Revised: April 26, 2026;   Accepted: May 28, 2026.
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Abstract
Heart failure with preserved ejection fraction (HFpEF) affects approximately half of the current heart failure population and demonstrates marked sex-related differences in pathophysiology, clinical presentation, and therapeutic response. These distinctions reflect the divergent biological pathways that shape disease expression in women and men. In women, disease expression is frequently linked to cardiometabolic stress, vascular dysfunction, and heightened ventricular–arterial coupling, often manifesting as concentric remodeling and a pronounced symptom burden. By contrast, men more commonly exhibit an ischemia-associated phenotype characterized by adverse remodeling and diffuse myocardial fibrosis. These biological differences influence the clinical presentation, biomarker interpretation, imaging findings, and long-term outcomes. Although most pharmacological therapies demonstrate broadly comparable efficacy between sexes, selected neurohormonal interventions and lifestyle-based strategies may yield differential benefits, underscoring the importance of sex- and phenotype-informed management. The recognition of sex-related heterogeneity in HFpEF may refine diagnostic algorithms, improve therapeutic targeting, and inform the design of future precision-based clinical trials.
Keywords: Heart failure, diastolic ; Sex factors ; Ventricular remodeling ; Fibrosis

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