Key result
Echocardiography defines RV dysfunction as RVEF below 50%, while CMR remains most reproducible for chamber volumes.
Review discussing the assessment of right ventricular dysfunction using echocardiography and cardiac magnetic resonance in patients with tricuspid regurgitation.
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Echocardiographic cutoffs may aid RV assessment in tricuspid regurgitation when CMR unavailable; leaves open prospective validation for clinical adoption.
to their load-dependency, while RVFWLS and RVEF have improved the accuracy of echocardiography in assessing RV function and prognostic stratification of patients. RV dysfunction is defined as the presence of an RVEF <50% and/or a RVFWLS <23% (5,6). Although current echocardiographic guidelines for the echocardiographic assessment of the right heart in adults (5) do not propose a grading system for the severity of RV dysfunction, the Tricuspid Valve Academic Research Consortium (4) has suggested possible cutoffs for the identification of moderate and severe RV dysfunction (15– 19% and 15% respectively for RVFWLS and 35–45% and <35% respectively for RVEF). Cardiac magnetic resonance remains the most reproducible method for assessing chamber volumes, RVEF, as well as myocardial structural changes, and may have utility in patients with TR and poor acoustic window or in uncertain cases (6). In selected patients, low-dose dobutamine stress echocardiography
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Lupi et al. (2026) conducted a review in Tricuspid regurgitation and right ventricular dysfunction. Echocardiographic assessment defines right ventricular dysfunction as an RVEF <50% and/or a RVFWLS <23%, with cardiac magnetic resonance remaining the most reproducible method for chamber volumes.
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