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Transcipt of video: Mild tricuspid regurgitation is often noted on echocadiogram reports and sometimes causes a little bit of worry and a lot of questions are asked on mild tricuspid regurgitation. What is this mild tricuspid regurgitation? And mild tricuspid regurgitation is just a small leak from the tricuspid valve.
In Ebstein’s anomaly, there is downward or apical displacement of posterior and septal tricuspid leaflets. The anterior leaflet is not displaced, but is elongated to meet the other leaflets, so that when it closes, a loud sound, tricuspid sound, is produced, which is called as the sail sound.
Though there are several parameters for evaluation of left ventricular diastolic function by echocardiography, the most commonly used are the pulsed Doppler mitral E/A ratio and tissue Doppler mitral E/e’ ratio. Doppler interrogation of mitral valve is usually done from the apex through the apical four chamber view.
Tracing in the lower part is tissue Doppler imaging from the medial mitral annulus. Opening and closing movements of the aortic and mitral valves are visible. Slight downward angulation of the transducer from this view gives the left ventricular cross section with mitral valve cross section within.
Bernoulli equation (P=4V 2 ) gives the gradient of tricuspid regurgitation flow, which corresponds to the pressure difference between right ventricle and right atrium in systole.
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