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Echocardiography
(A) Continuous Doppler over mitral valve. (B, C) Apical 4 chamber view with (B) systolic and (C) diastolic mitral regurgitation (MR) components. (D, E) M mode view with systolic and diastolic (arrow) MR components during (D) atrioventricular block and only systolic component when atrioventricular synchronization was achieved with atropine (E).
