摘要To the Editor:High-risk percutaneous coronary intervention (PCI) remains a viable revascularization strategy for patients who refuse or are not suitable for surgery.[1] Extracorporeal membrane oxygenation (ECMO) can direct blood flow from the body,oxygenate it,and then return it,thus completely or partially replacing the function of the heart and lungs and increasing the likelihood of functional recovery.[2] Selective PCI supported by ECMO is a viable alternative for patients who are at very high risk for coronary artery bypass grafting (CABG).[3] A previous study found that ECMO-assisted PCI for patients with acute myocardial infarction complicated by profound cardiogenic shock might have improved 30-day and l-year survival rates,[4] and we believe that ECMO is a viable mode ofhemodynamic support in high-risk cases.