Echocardiographic classification of anatomical diversity of the tricuspid valve: insights from the bright trial

Abstract Funding Acknowledgements Type of funding sources: Private grant(s) and/or Sponsorship. Main source(s): Trial funded by Abbott Background As the treatment tricuspid regurgitation with transcatheter edge-to-edge repair (TEER) becomes more widespread, a better understanding anatomy is increasingly important to properly select patients for this therapy. The diversity anatomies in real-world population not well known, and strategies characterization some anatomic features are defined. Purpose To propose method accurately consistently characterize valve transthoracic transesophageal echo receiving TEER investigate reflected population. Methods bRIGHT trial prospective, single-arm, multi-center registry initiated evaluate safety effectiveness TriClip System severe (TR) post-market setting. Detailed echocardiographic analysis was performed on subjects from 25 sites available baseline echo. Subjects were evaluated three key anatomical factors that anticipated be critical determining feasibility TEER: number leaflets, degree leaflet restriction, coaptation gap size. Herein, we present proposed characterizing these through analysis. Results Between August 2020 July 2022, 312 (age, 78.4±7.6 years, 54% women) at enrolled into 283 had Coaptation size measured largest clippable location (Figure 1) found range 2.3 mm 20.8mm (avg. 8.6 ± 3.3 mm). According Hahn et. Al, majority have 3 leaflets (80%), however 4 5 also (20% 1% respectively). Severity restriction categorized according 4-grade scale. In studied, severity ranged none severe, 21% having no 65% displaying mild 12% moderate 2% restriction. Conclusions treated as part trial, developed. reaved broad realized ___________________________________