| Sumario: | Objectives: This study aimed to identify the utility of global longitudinal strain (GLS) as a reliable parameter that can accurately forecast left ventricle reverse remodeling (LVRR) in patients undergoing valve replacement surgery for severe chronic primary mitral regurgitation (MR), thereby aiding in assessing mortality and morbidity risk. Methods: This retrospective observational study involved severe primary MR patients who underwent valve replacement surgery between 2018 and 2023. Pre‐ and postsurgery echocardiography data were collected, with GLS measurements utilized to assess left ventricular function. Various echocardiography parameters, including MR severity and LV dimensions, were analyzed. Bivariate and multivariate analyses were performed to explore relationships between GLS and LVRR. Results: This study enrolled 103 patients (54.4% male; mean age 45.4 ± 13.6 years). Statistical analyses revealed GLS to be an independent predictor of LVRR, with a threshold of −16.25% showing 89% sensitivity and 50% specificity. Each 1% increase in GLS corresponded to a 1.14‐fold (odds ratio [OR]: 1.14; 95% confidence interval [CI]: 1.01–1.31; p < 0.05) increased likelihood of LVRR. Conclusion: These findings highlight GLS's potential as a prognostic marker for postsurgical outcomes in severe MR patients.
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