European heart journal. Cardiovascular Imaging · 2026
Sex-specific differences in right heart remodelling and patient outcomes in secondary tricuspid regurgitation.
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Tomaselli Michele, Penso Marco, Badano Luigi P, Radu Noela, Springhetti Paolo, Buta Alexandra, Benzoni Giorgia, Hădăreanu Diana R, Caravita Sergio, Baratto Claudia, Clement Alexandra, Fisicaro Samantha, Clavel Marie-Annick, Muraru Denisa
Аннотация
AIMS: Current guidelines lack sex-specific thresholds for assessing secondary tricuspid regurgitation (STR) severity and right ventricular (RV) and tricuspid annulus (TA) remodelling. We aimed to determine whether risk-based cut-offs for these parameters differ between men and women with STR.
METHODS AND RESULTS: We included 554 patients (74 ± 13 years, 51% women) with moderate or severe STR. The primary endpoint was all-cause mortality or heart failure hospitalization. Women were older (P < 0.001) and had a higher prevalence of atrial fibrillation (P = 0.008) and atrial STR (P < 0.001), whereas men more frequently had coronary artery disease (P < 0.001), chronic kidney disease (P = 0.005), and mitral regurgitation (P < 0.001). Women exhibited smaller RV and TA dimensions and higher RV ejection fraction (RVEF) (P < 0.001). Over a median follow-up of 19 (8-27) months, 230 patients reached the composite endpoint. Event-free survival at 2 years was comparable between sexes (P = 0.183), even after inverse propensity weighting (P = 0.342). Sex-specific thresholds for STR severity were lower in women for effective regurgitant orifice area (EROA) (0.36 cm² vs. 0.43 cm²) and regurgitant volume (RegVol) (31 mL vs. 35 mL) but higher for regurgitant fraction (46% vs. 39%). Women also exhibited comparable risk at lower RV end-diastolic (81 mL/m² vs. 96 mL/m²) and end-systolic volumes (37 mL/m² vs. 49 mL/m²), higher RVEF (49% vs. 41%), and smaller TA diameter (19 mm/m² vs. 22 mm/m²).
CONCLUSION: In STR, women face a similar risk at lower EROAs and RegVols, along with smaller RV volumes, higher RVEF, and reduced TA dimensions. These findings highlight the importance of incorporating sex-specific thresholds into clinical decision-making when assessing STR severity and right heart remodelling.
METHODS AND RESULTS: We included 554 patients (74 ± 13 years, 51% women) with moderate or severe STR. The primary endpoint was all-cause mortality or heart failure hospitalization. Women were older (P < 0.001) and had a higher prevalence of atrial fibrillation (P = 0.008) and atrial STR (P < 0.001), whereas men more frequently had coronary artery disease (P < 0.001), chronic kidney disease (P = 0.005), and mitral regurgitation (P < 0.001). Women exhibited smaller RV and TA dimensions and higher RV ejection fraction (RVEF) (P < 0.001). Over a median follow-up of 19 (8-27) months, 230 patients reached the composite endpoint. Event-free survival at 2 years was comparable between sexes (P = 0.183), even after inverse propensity weighting (P = 0.342). Sex-specific thresholds for STR severity were lower in women for effective regurgitant orifice area (EROA) (0.36 cm² vs. 0.43 cm²) and regurgitant volume (RegVol) (31 mL vs. 35 mL) but higher for regurgitant fraction (46% vs. 39%). Women also exhibited comparable risk at lower RV end-diastolic (81 mL/m² vs. 96 mL/m²) and end-systolic volumes (37 mL/m² vs. 49 mL/m²), higher RVEF (49% vs. 41%), and smaller TA diameter (19 mm/m² vs. 22 mm/m²).
CONCLUSION: In STR, women face a similar risk at lower EROAs and RegVols, along with smaller RV volumes, higher RVEF, and reduced TA dimensions. These findings highlight the importance of incorporating sex-specific thresholds into clinical decision-making when assessing STR severity and right heart remodelling.