This lesson presents commotio cordis, a condition is caused by blunt force trauma to the chest, such as a baseball batter being hit in the chest by a pitch. Severe damage to the right and left ventricles and mitral and tricuspid valves may result.
In this example, the trauma is limited to the mitral valve leaflets. Rupture of a chordae tendinae has occurred, resulting in a systolic murmur. The first half of the murmur is rectangular. It is followed by a decrescendo late systolic component which is produced by rapid filling of the left atrium due to torrential mitral regurgitation.
The auscultation position is the mitral valve area.
Listen
The patient's position is supine.
