Review Question - QID 1085

Hypertrophic obstructive cardiomyopathy (HOCM) is by far the most prevalent cause of sudden death in the young (<35 years old), healthy athlete. Greater than 50% of those with HOCM have minimal to no symptoms. The classic murmur is one that is increased with valsalva maneuver because it results in decreased venous return -> allows asymmetrical septum to obstruct the LV outflow -> increased flow murmur. A ruptured aorta is very uncommon and is generally associated with Marfan’s Syndrome. Atherosclerotic coronary disease would be the most common cause in the older population (>35 years old). Commotio cordis occurs from disrupted conduction as a result of a blow to the chest. It is more common in young children with the classic examples of a karate punch to the chest or a little league batter hit in the chest by a pitch.