“…In the present case, the first assessment of echocardiography and ECG revealed not only apparent tricuspid regurgitation but relatively small mitral regurgitation, pericardial effusion, and bi-fascicular block. Fortunately, none of the injuries were fatal in this case, but such injuries should be watched carefully because several complications, including valve insufficiency, cardiac tamponade, and complete atrioventricular block, can occur in the subacute phase of trauma ( 15 , 16 ). In this case, the pre-operative findings were as follows: 1) severe TR due to ruptured chordae tendineae of the anterior leaflet, 2) moderate MR with AML prolapse of the medial side, 3) sternal fracture at the level of the right ventricle (RV) outflow tract, 4) myocardial contusion in the left ventricle (LV) inferior septal, and 5) RV and RA- dilatation that progressed gradually.…”