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Unprotected Left Main Coronary Artery Stenting under Extracorporeal Membrane Oxygenation Support in a Patient with High-Risk Acute Myocardial Infarction

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Although coronary artery bypass grafting (CABG) is the main choice in patients with unprotected left main (LM) coronary artery stenosis, unprotected LM stenting has been suggested as alternative treatment for patients who refuse the surgery or who are poor surgical candidates. We report an elderly male suffering from acute myocardial infarction. Percutaneous coronary intervention (PCI) was performed in this case and severe LM stenosis was noted. Ventricular fibrillation occurred during angiography and cardiopulmonary resuscitation (CPR) was done Extracorporeal membrane oxygenation (ECMO) was instituted for unstable hemodynamics and further angioplasty with stenting was performed successfully. However, the patient finally died several days later because of multiple co-morbid diseases. Unprotected LM stenting under ECMO support in high-risk patients is rarely reported, and there is also no literature discussing the comparison of PCI under ECMO support and CABG in high-risk patients; further clinical utility of ECMO for these high-risk patients warrants more investigation.

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