Emergency Central is a collection of disease, drug, and test information including 5-Minute Emergency Medicine Consult, Davis’s Drug, McGraw-Hill Medical’s Diagnosaurus®, Pocket Guide to Diagnostic Tests, and MEDLINE Journals created for emergency medicine professionals. Explore these free sample topics:
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- Also known as blunt cardiac injury
- Pathologically characterized by discrete and well-demarcated area of hemorrhage
- Usually subendocardial
- May extend in pyramidal transmural fashion
- Most commonly involves anterior wall of right ventricle or atrium due to anatomic location
- Blunt trauma to chest:
- High-speed deceleration accidents
- May occur in accidents with speeds as low as 20–35 mph
- Auto–pedestrian injuries
- Prolonged closed-chest cardiac massage
- Heart may be compressed between sternum and vertebrae.
- Heart strikes sternum during deceleration.
- Heart is damaged by abdominal viscera upwardly displaced by force on abdomen.
- Concussive forces (e.g., explosion)
- Associated conditions:
- Life-threatening dysrhythmias
- Cardiogenic shock/CHF
- Hemopericardium with tamponade
- Valvular/myocardial rupture
- Intraventricular thrombi
- Thromboembolic phenomena
- Coronary artery occlusion from intimal tearing or adjacent hemorrhage and edema may rarely occur.