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16-01-2024 | Transthoracic Echocardiography | Review Article–Cardiology

Right ventricular dilatation: echocardiographic differential diagnosis

Authors: Michiyo Yamano, Tetsuhiro Yamano, Satoaki Matoba

Published in: Journal of Medical Ultrasonics | Issue 2/2024

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Abstract

The initial means of detecting right ventricular (RV) dilatation is often transthoracic echocardiography (TTE), and once the presence of RV dilatation is suspected, there is the possibility of RV volume overload, RV pressure overload, RV myocardial disease, and even nonpathological RV dilatation. With respect to congenital heart disease with RV volume overload, defects or valvular abnormalities can be easily detected with TTE, with the exception of some diseases. Volumetric assessment using three-dimensional echocardiography may be useful in determining the intervention timing in these diseases. When the disease progresses in patients with pulmonary hypertension as a result of RV pressure overload, RV dilatation becomes more prominent than hypertrophy, and RV functional parameters predict the prognosis at this stage of maladaptive remodeling. The differential diagnosis of cardiomyopathy or comparison with nonpathological RV dilatation may be difficult in the setting of RV myocardial disease. The characteristics of RV functional parameters such as two-dimensional speckle tracking may help differentiate RV cardiomyopathy from other conditions. We review the diseases presenting with RV dilatation, their characteristics, and echocardiographic findings and parameters that are significant in assessing their status or intervention timing.
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Metadata
Title
Right ventricular dilatation: echocardiographic differential diagnosis
Authors
Michiyo Yamano
Tetsuhiro Yamano
Satoaki Matoba
Publication date
16-01-2024

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