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Isolated congenital tricuspid insufficiency is a rare anomaly and may be caused by abnormal chordae tendinae, papillary muscle, or valve leaflets. The cause of these lesions is generally ascribed to incomplete undermining of primitive endocardial cushion by sinusoidal space, which differentiate the cushion into the various valvular structures. Carvallo’s sign, most characteristic clinical sign in tricuspid insufficiency, is augumentation
of systolic... |
