Ratio between Vena Contracta Width and Tricuspid Annular Diameter: Prognostic Value in Secondary Tricuspid Regurgitation

• DOI: 10.1016/j.echo.2021.03.015
• Publication Date: 2021-04-08T06:01:13Z
• Authors: Federico Fortuni; Marlieke F. Dietz; Edgard A. Prihadi; Pieter van der Bijl; Gaetano M. De Fer...; Jeroen J. Bax; Victoria Delgado; Nina Ajmone Marsan
• Keywords: Vena contracta; Interquartile range

Conventional approaches for the assessment of secondary tricuspid regurgitation (STR) severity do not correct right heart dimensions. The authors hypothesized that STR can be proportional or disproportional to dilation annulus (TA) and investigated prognostic impact this novel definition.A total 334 patients with moderate severe preserved left ventricular systolic function were included. ratio between vena contracta (VC) width annular diameter was calculated. cutoff value VC/TA associated increased risk all-cause death identified using spline-curve analysis.The a mortality excess 0.24, 165 (49%) had ratios ≥ 0.24. Compared those < 0.24 higher prevalence mitral regurgitation, pulmonary pressures, more frequently treated diuretics. During median follow-up period 62 months (interquartile range, 28-101 months), 128 (38%) died. cumulative 5-year survival rate significantly worse in (55% vs 71%, P = .001). independently poor outcomes on multivariate analysis (hazard ratio, 1.567; 95% CI, 1.044-2.352; .030) together coronary artery disease, renal impairment, (evaluated either plane excursion free wall strain), pressures.VC/TA is prognosis STR. This parameter may considered as marker disproportionate could improve stratification clinical decision-making.