Sudden cardiac arrest resulting from blunt chest trauma in absence of underlying cardiac disease
50% of cases due to competitive sports
Baseball is most common culprit
Autopsy usually shows normal cardiac anatomy with no evidence of damage to heart or other intrathoracic structures
Baseball is most common culprit
A spectrum of disease due to blunt trauma to the chest wall
Ranges from cardiac contusion to infarction to cardiac rupture and death.<unk>  is sudden cardiac arrest resulting from blunt chest trauma, in absence of underlying cardiac disease
Up to 20% of all MVC deaths are due to blunt cardiac injury<unk>  is sudden cardiac arrest resulting from blunt chest trauma, in absence of underlying cardiac disease
Up to 20% of all MVC deaths are due to blunt cardiac injury
Primary electrical event resulting in induction of Ventricular Fibrillation
Likely due to blow occurring 10-30ms before peak of T wave, although this theory is disputed
Strike directly over cardiac silhouette ↑ risk of developing<unk> 
Younger patients more at risk - compliant chest wall allows transmission of more energy to the heart.
Commotio cordis
Airway/Pulmonary
Pinguecula
Bronchial injury
Phlegmasia cerulea dolens
Diaphragmatic trauma
Ranula
Hemothorax