Cardiac contusion: ending myocardial confusion in this capricious syndrome.

Symptoms of cardiac contusion are very greatly and sometimes are non recognized or are masked by associated injury in severe chest trauma. Cardiac contusion clinically presents as a spectrum of signs and symptoms of varying severity, ranging from precordial pain, dyspnoea, and non specific ECG changes to increased serum activity of several enzymes, early severe rhythm abnormalities, severe conduction defects and death. We present a fatal case in which the definitive diagnosis of myocardial contusion has proved complex. All clinical data were suggestive of acute myocardial infarction, but the history of chest wall injury and gross and histological examination of the heart and coronary vessels led us to conclude for a cardiac contusion without myocardial infarction. In case of chest blunt trauma, the ECG should be interpreted within the context of the clinical situation, on history of chest wall injury, since a fatal myocardial contusion may occur after apparently mild injury.