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  • Title: Simultaneous papillary muscle avulsion and free wall rupture during acute myocardial infarction. Intra-aortic balloon pump: a bridge to survival.
    Author: Liuzzo JP, Shin YT, Choi C, Patel S, Braff R, Coppola JT.
    Journal: J Invasive Cardiol; 2006 Mar; 18(3):135-40. PubMed ID: 16598115.
    Abstract:
    Mechanical complications of acute myocardial infarction (AMI) are rare, but often fatal. Medical therapy does not provide adequate risk reduction, and surgical correction is recommended when feasible. Supplemental hemodynamic support utilizing intra-aortic counterpulsation with a balloon pump provides an improvement in morbidity and mortality when combined with a corrective surgical approach. We report a case of an elderly male with a progressive 2-week history of ischemic symptoms presenting with acute pulmonary edema, hypotension and an inferior wall ST-elevation MI. His hospital course was complicated by ischemic mitral regurgitation (MR) and cardiogenic shock, which resulted in a papillary muscle rupture/avulsion from the inferolateral myocardial wall, and a communication for blood from ventricle to pericardial space. Initial management included mechanical ventilation, pharmacologic inotropic support, percutaneous revascularization of the culprit lesion and intra-aortic balloon counterpulsation. The patient underwent further successful cardiovascular surgical correction of his incompetent mitral valve, free wall rupture and other obstructive coronary arteries, leading to discharge and survival. Mechanical complications from AMI and the role of intra-aortic balloon support are discussed.
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