Abstract
Seventy-five patients with nonpenetrating chest injuries were evaluated with electrocardiography, cardiac enzyme determination, 2-dimensional echocardiography and radionuclide ventriculography to document the incidence of cardiac abnormalities. Although the electrocardiograms showed ST-T wave changes in 25 patients (33%), sensitivity (47%) and specificity (79%) for echocardiographic and radionuclide abnormalities were poor. Cardiac enzymes were abnormal in 10 patients (13%), sensitivity for echocardiographic or radionuclide abnormalities, or both, was 29% and specificity 90%. Wall motion abnormalities were detected in 11 patients (18%) by radionuclide studies and in 3 patients (6%) by echocardiography. A pericardial effusion was present in 5 patients (10%). Two patients (4%) died of noncardiac causes; neither had wall motion abnormalities. This study documents the favorable outcome of patients with blunt chest injuries and does not suggest that echocardiography or radionuclide studies should be performed routinely on such patients.
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