Comparison of the usefulness of strain imaging by echocardiography versus computed tomography to detect right ventricular systolic dysfunction in patients with significant secondary tricuspid regurgitation

Assessment of right ventricular (RV) systolic function in patients with significant secondary tricuspid regurgitation (STR) remains challenging. In patients with severe aortic stenosis treated with transcatheter aortic valve implantation (TAVI), STR and RV enlargement have been associated with poor outcomes. In these patients, speckle tracking echocardiography (STE) may detect RV systolic dysfunction better than 3-dimensional (3D) RV ejection fraction (EF). The purpose of this study was to investigate the prevalence of RV dysfunction when assessed with STE in patients with significant STR (>= 3+) compared with patients without significant STR (= 3+) was observed in 67 patients. Patients with STR >= 3+ had larger RVEDVi, larger RVESVi, lower LVEF, and more impaired RVFWS compared with patients with STR= 3+ (n = 53) had significantly more impaired RVFWS compared with patients with STR