Valvular heart disease (VHD) is a major global health issue. Untreated rheumatic heart disease persists in many regions, preventable with timely care. Higher-income countries face rising calcific valve disease from aging, worsened by VHD complications, like infective endocarditis, resulting in higher morbidity/mortality. Gender disparities in VHD remains understudied, despite inequalities in risks, diagnosis, and treatment. Prevalence varies by gender, but uneven diagnostics and therapies obscure realities. This registry will examine gender disparities from hospital admission to first outpatient follow-up, recruiting both men and women to investigate and report the study objectives.
Valvular heart disease (VHD) is a major global public health problem (1). Many regions of the world continue to grapple with the adverse consequences of untreated rheumatic heart disease, a condition that is largely preventable with timely access to diagnosis and treatment (2, 3). In turn, middle- and high-income countries have experienced a rise in the prevalence of calcific aortic and mitral disease, owing in part to population ageing (3). This public health problem is further compounded by high rates of infective endocarditis, which is associated with substantial morbidity and mortality. Yet, considerations of gender disparities have not taken centre stage in VHD research. This is despite evidence of major healthcare disparities in socioeconomic and medical risk factors, access to diagnosis, and provision of appropriate treatment (4-7). The prevalence of VHD varies by gender, but diagnostic evaluations are not equitable across the groups, which makes the true prevalence less clear. The delivery of evidence-based treatments for VHD is not equitable (8). The aim of this registry will be to examine gender differences in VHD from the time point of admission to the hospital (either elective or urgent admission) up to the first follow-up in an outpatient clinic. We will recruit both men and women in order to analyse the gender disparities.
Study Type
OBSERVATIONAL
Enrollment
800
Aswan Heart Centre
Aswān, Egypt
RECRUITINGUniversity of Lisbon
Lisbon, Portugal
RECRUITINGDisparities in Valvular Heart Disease (VHD) Treatment
Assess disparities in evidence-based VHD treatments (medical, interventional or surgical management) by gender, in relation to age, ethnicity, and location. Quantify using odds ratios (OR) or relative risks (RR) with 95% CI; adjust via multivariable logistic regression. Time Frame: Baseline to 12 months post-enrollment. Analysis Plan: Chi-square/ANOVA for unadjusted comparisons; regression for adjusted analyses (p \< 0.05).
Time frame: One year
Disparities in Valvular Heart Disease Management
Evaluate disparities in diagnostic testing, follow-up, and multidisciplinary care using composite scores and standardized mean differences (SMD) or hazard ratios (HR); adjust with Cox models if time-dependent. Time Frame: Baseline to 12 months post-enrollment. Analysis Plan: Generalized linear mixed model (GLMM) for clustering; power for Cohen's d \> 0.3.
Time frame: One year
Adherence to/Compliance with European Society of Cardiology (ESC) Guidelines for Management of Valvular Heart Disease.
Measure proportion adhering to 2021 ESC guidelines (or updates); binary/ordinal scoring with reasons for non-compliance categorized. Time Frame: Through study timepoints. Analysis Plan: Binomial proportions with 95% CI; logistic regression for predictors; detect differences.
Time frame: One Year
Time from Diagnosis to Guideline-Directed Therapy: Comparison Between Women and Men
Compare median days from diagnosis to therapy initiation (medical/intervention/surgery) by sex/gender. Time Frame: Study duration. Analysis Plan: Kaplan-Meier/log-rank; Cox HR with 95% CI.
Time frame: One Year
Time from Symptom Onset to Presentation at Tertiary Center: Comparison Between Women and Men
Compare median days from symptom onset to tertiary presentation by gender. Time Frame: Study duration. Analysis Plan: Wilcoxon rank-sum; quantile regression.
Time frame: One Year
Procedural Complications: Comparison Between Women and Men
Compare reported complication post-intervention quantitatively based on established criteria or occurrence of major cardiovascular events. Time Frame: Intra/Post-procedure through study duration. Analysis Plan: Chi-square/Fisher's; Poisson IRR.
Time frame: One Year
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