Gender-based differences in echocardiographic remodeling and LVAD outcomes

Overview

This study evaluates sex-specific remodeling patterns and the prognostic significance of left ventricular geometry and myocardial work following LVAD implantation. Findings indicate that men experience adverse changes in left ventricular sphericity and pressure-dimension index post-implantation, while women maintain stable geometry and higher pressure-dimension index.

Background

Understanding gender differences in outcomes after LVAD implantation is crucial for optimizing patient management and risk stratification. Previous studies have shown that sex-related differences can influence postoperative morbidity and mortality.

Data Highlights

Key Findings

• Men exhibited adverse sphericalization post-LVAD implantation (median ΔLVSI +0.045, p = 0.001).
• Women showed a pattern of geometric resistance with stable LVSI (ΔLVSI p = 0.766).
• Preoperative LVSI was independently associated with mortality (HR 1.47 per SD, p = 0.034).
• Preoperative global work index was a robust predictor of mortality (HR 0.14 per SD, p < 0.001) and postoperative right heart failure (OR 0.41 per SD, p = 0.022).
• Findings require cautious interpretation due to small sample size and attenuation after matching.

Clinical Implications

The study highlights the importance of considering sex-specific responses in LVAD patients, particularly regarding ventricular geometry and myocardial work.

Conclusion

The findings indicate that women may preserve left ventricular geometry and function better than men after LVAD implantation.

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