O.Khan, and M.Summers, “Concomitant Transcatheter Edge-to-Edge Repair for Mitral and Tricuspid Regurgitation for Polyvalvular Disease,” Catheterization and Cardiovascular Interventions0 (2026): 1-2. https://doi.org/10.1002/ccd.70590. 1 Background Tricuspid regurgitation (TR) and mitral regurgitation (MR) are prevalent valvular disorders, particularly in patients with structural heart disease. Traditional surgical interventions carry substantial risks in elderly patients with comorbidities.