Impact of biological sex on valvular heart disease, interventions, and outcomes
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Published on: August 5, 2021
Evan J Wiens1, Kristal Kawa2, Malek Kass3,4
1Department of Critical Care Medicine, University of Alberta, Edmonton, AB, Canada.
Insights
Valvular heart disease (VHD) affects many older adults. This review highlights crucial sex differences in VHD, emphasizing potential disadvantages for females and risks during pregnancy.
Area of Science:
- Cardiology
- Sex-Based Medicine
- Reproductive Health
Background:
- Valvular heart disease (VHD) is prevalent in older adults (>14% of those >75).
- VHD is linked to significant morbidity (heart failure, arrhythmia) and mortality.
- Emerging evidence reveals important sex-based differences in VHD epidemiology, pathophysiology, presentation, diagnosis, and outcomes.
Purpose of the Study:
- To review sex differences in aortic, mitral, pulmonic, and tricuspid VHD.
- To focus on variations in pathophysiology, clinical presentation, and outcomes between sexes.
- To discuss the implications of pregnancy on VHD pathophysiology and management.
Main Methods:
- Literature review of existing studies on VHD.
- Analysis of sex-based disparities in VHD.
- Examination of pregnancy-related risks and management in VHD patients.
Main Results:
- Females with VHD often face delayed diagnosis and poorer outcomes compared to males.
- Pregnancy exacerbates risks for both mother and fetus in many VHD cases.
- Significant sex differences exist across various types of VHD.
Conclusions:
- Recognizing sex differences in VHD is critical for effective patient care.
- Understanding VHD pathophysiology and management in pregnant females is essential for clinicians.
- Addressing sex-based disparities can improve outcomes for female VHD patients.
Abstract:
Valvular heart disease (VHD) is common, affecting >14% of individuals aged >75, and is associated with morbidity, including heart failure and arrhythmia, and risk of early mortality. Increasingly, important sex differences are being found between males and females with VHD. These sex differences can involve the epidemiology, pathophysiology, presentation, diagnosis, and outcomes of the disease. Females are often disadvantaged, and female sex has been shown to be associated with delayed diagnosis and inferior outcomes in various forms of VHD. In addition, the unique pathophysiologic state of pregnancy is associated with increased risk for maternal and fetal morbidity and mortality in many forms of VHD. Therefore, understanding and recognizing these sex differences, and familiarity with the attendant risks of pregnancy and management of pregnant females with VHD, is of great importance for any primary care or cardiovascular medicine practitioner caring for the female patient. This review will outline sex differences in aortic, mitral, pulmonic, and tricuspid VHD, with particular focus on differences in pathophysiology, clinical presentation, and outcomes. In addition, the pathophysiology and management implications of pregnancy will be discussed.
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