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Sex Differences in Atrial Fibrillation

  • Women and Cardiovascular Health (N Goldberg and S Lewis, Section Editors)
  • Published:
Current Cardiology Reports Aims and scope Submit manuscript

Abstract

Purpose of Review

Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia. The estimated lifetime risk of developing AF is higher in men; however, due to differences in life expectancy, the overall prevalence is higher among women, particularly in the older age group. Sex differences play an important role in the pathophysiology, presentation, and clinical outcomes of AF. Awareness of these differences minimizes the potential for disparities in AF management. Our review summarizes the current literature on sex differences in AF, including the epidemiology, pathophysiology, risk factors, clinical symptomatology, mechanisms, treatment, and outcomes. We also explore the implications of these differences for clinical practice and future research.

Recent Findings

Women are more likely to present with atypical symptoms, have a higher stroke risk, and have a worse quality of life with AF when compared to men. Despite this, they are less likely to receive rhythm control strategies and anticoagulants.

Summary

The sex-based differences in AF pathology and management might be a combination of inherent biological and hormonal differences, and implicit bias of the research entities and treating clinicians. Our review stresses the need for further sex-specific research in the pathophysiology of AF and opens a dialogue on personalized medicine, where management strategies can be tailored to individual patient characteristics, including sex.

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Abbreviations

AAD:

Anti-arrhythmic drugs

CA:

Catheter ablation

LA:

Left atrium

DCCV:

Direct current cardioversion

LAAO:

Left atrial appendage occlusion

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Papers of particular interest, published recently, have been highlighted as: • Of importance

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Correspondence to Kamala P. Tamirisa.

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Conflicts of Interest

KPT reports: Speaker for Abbott and Sanofi. DG reports: Speaker for Boehringer Ingelheim, Biosense Webster and Boston Scientific; proctor for Abbott; research Grants from Medtronic, Biosense Webster and Boston Scientific. AA reports: Consulting for Medtronic, Boston Scientific, Abbott, and Biosense Webster. AMR reports: Research support from Bayer, Boston Scientific, and Medtronic; consulting for Abbott, Atricure, Bayer, Biosense Webster, Biotronik, Boston Scientific, Medtronic, and Pacemate; honoraria for speaking from Abbott, Biotronik, BMS/Pfizer, Boston Scientific, Medtronic, and Sanofi; Royalties from Up-To-Date; fellowship support from Medtronic. Participation on Data Safety Monitoring Board or Advisory Board for Biosense Webster and NHLBI (REACT-AF). Leadership or fiduciary role – American Board of Internal Medicine (ABIM). The other authors declare no conflicts of interest.

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Tamirisa, K.P., Calvert, P., Dye, C. et al. Sex Differences in Atrial Fibrillation. Curr Cardiol Rep 25, 1075–1082 (2023). https://doi.org/10.1007/s11886-023-01927-1

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