Echocardiographic assessment of right ventricular function and right ventriculoarterial coupling in tricuspid regurgitation

Abstract Funding Acknowledgements Type of funding sources: None. Background Echocardiographic evaluation the cardiopulmonary unit may be difficult in presence tricuspid regurgitation (TR) and combined echocardiographic parameters could therefore useful such patients. Purpose To assess variation simple analysing according to severity TR. Methods images were reviewed 179 patients TR grade Hahn’s 5 grades classification. Classical morphological (right ventricle (RV) end diastolic (ED) length area), function (tricuspid annular plane systolic excursion (TAPSE), RV fractional area change (RVFAC), S’ wave, free wall longitudinal strain (RVFWS)) load (TR Time-velocity integral TVI), pulmonary artery pressure (PASP)) assessed. Combined (TAPSE/PASP, TVI x RVFWS), morphology (load adaptation index (LAI) = RVED length/area) morphology, load, (myomechanical (MMI RV-RA mean gradient RVFWS/indexed RAED 10–2 ) morphology-load-function (MLF length/area RVFWS)) calculated. We used receiver operating characteristic (ROC) curve analysis analyze diagnostic value predict potential high (>3) or low (<6) surgical risk mortality TRISCORE. Results Simple significatively different among groups with a nonlinear progression between levels also groups. Among them, MMI MLF had linear (MMI: 1: 0.20±0.09; 2: 0.15±0.08; 3: 0.10±0.05, 4: 0.09±0.08; 5: 0.05±0.04 p 0.000; MLF: 7.56±2.06; 6.57±2.14; 4.85±2.29, 4.79±3.17; 3.06±1.82 0.000) best predictive for TRISCORE AUC =0.889 0.000 risk, 0.855 risk; =0.873 0.822 risk). Conclusion are relevant evaluate population presenting TR, especially when combining parameters. Their good suggests role prognostic assessment selection new percutaneous repair techniques.