biostudies-literatureUnknown7(1)Monteagudo-Vela M<h4>Background</h4>In patients who underwent coronary artery bypass graft (CABG), the coronary-subclavian steal syndrome (CSSS) is characterized by a subclavian artery stenosis proximal to the origin of the internal mammary artery resulting in functional graft failure.<h4>Case summary</h4>A 62-year-old gentleman underwent CABG following a non-ST elevation myocardial infarction and an angiogram showing left main stem and three-vessel disease. Forty-eight hours later he developed cardiogenic shock that improved with inotropic support and intra-aortic balloon pump insertion. However, 7 days later, he deteriorated again and even though the myocardial injury markers and echocardiogram were normal, an angiography was performed showing significant CSSS. Due to the chronic nature of his subclavianEuropean heart journal. Case reportsytac490https://www.ebi.ac.uk/biostudies/studies/S-EPMC9851414biostudies-literatureCoronary-subclavian steal syndrome: a case report of a rare entity that can become a deadly threat.PMC9851414Monguio-Santin EReyes-Copa GBastante TDel Val DPanoulas VMonteagudo-Vela MfalseCoronary-subclavian steal syndrome: a case report of a rare entity that can become a deadly threat.<h4>Background</h4>In patients who underwent coronary artery bypass graft (CABG), the coronary-subclavian steal syndrome (CSSS) is characterized by a subclavian artery stenosis proximal to the origin of the internal mammary artery resulting in functional graft failure.<h4>Case summary</h4>A 62-year-old gentleman underwent CABG following a non-ST elevation myocardial infarction and an angiogram showing left main stem and three-vessel disease. Forty-eight hours later he developed cardiogenic shock that improved with inotropic support and intra-aortic balloon pump insertion. However, 7 days later, he deteriorated again and even though the myocardial injury markers and echocardiogram were normal, an angiography was performed showing significant CSSS. Due to the chronic nature of his subclavian2023-01-01T00:00:00Z2023 Jan2025-08-16T03:06:24.125Z2025-04-05T19:51:53.127ZS-EPMC98514143668510010.1093/ehjcr/ytac490