Right Internal Mammary Artery Steal Syndrome: Successful Percutaneous Coil Embolization of a Collateral Branch. Case report

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ID: 327953
2026
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Abstract
Abstract Background Case Coronary artery bypass grafting (CABG) is a common revascularization strategy, yet ischemic symptoms may persist despite patent grafts. Case Summary We describe a 60-year-old man with three-vessel coronary artery disease treated with triple CABG who presented with persistent dyspnea and infero-lateral myocardial hypoperfusion. Repeat coronary angiography demonstrated patent grafts but identified a collateral branch of the right internal mammary artery causing a steal phenomenon. Coil embolization of the collateral vessel led to complete symptom resolution and normalization of myocardial perfusion. Discussion This case highlights a rare cause of CABG steal syndrome and emphasizes the need for careful assessment of internal mammary artery branches in patients with ongoing post-CABG ischemia
Reference Key
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Authors Luca Saccarello, Giovanni Pedrazzini, Marcello Di Valentino, Andrea Demarchi, Andrea Menafoglio
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Journal European Heart Journal - Case Reports
Year 2026
DOI
10.1093/ehjcr/ytag642
URL
https://doi.org/10.1093/ehjcr/ytag642
Keywords Keywords not found

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