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The Journal of Thoracic and Cardiovascular Surgery, Vol 83, 122-125, Copyright © 1982 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association

ARTICLES

Acute coronary artery occlusion secondary to blunt chest trauma

R Pifarre, J Grieco, A Garibaldi, HJ Sullivan, A Montoya and M Bakhos

Two patients suffered an acute transmural MI due to complete occlusion of the proximal LAD after blunt chest trauma. One developed a rupture of the ventricular septum with a ventricular aneurysm and the other an acute ventricular aneurysm, both accompanied by congestive heart failure. Neither had a history of ischemic heart disease; both had normal right and circumflex coronary arteries by arteriography. An intimal tear or subintimal hemorrhage with luminal thrombosis, or both, are the suggested mechanisms of coronary artery occlusion. Both patients were operated upon successfully. Patient 1 underwent closure of the VSD and resection of the ventricular aneurysm. The LAD had returned to normal and required no aortocoronary bypass graft. Patient 2 underwent arteriotomy of the LAD with Fogarty catheter embolectomy and aortocoronary bypass graft, combined with resection of the ventricular aneurysm. We recommend that patients who suffer blunt chest trauma and show ECG changes should undergo cardiac catheterization and coronary arteriography, followed by the pertinent treatment.

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