Drug-Coated Balloon Treatment for ACS Induced by Myocardial Bridging: An Intravascular Ultrasound-Guided PCI

Abstract This report describes a case of a 35-year-old male who presented with acute coronary syndrome. An angiogram and intravascular ultrasound revealed atherosclerotic stenosis in the myocardial bridging (MB) segment of the mid-left anterior descending artery. The culprit lesion was treated using a drug-coated balloon (DCB), and no residual stenosis was observed, which was later confirmed by intravascular ultrasound and optical coherence tomography at a 1-year coronary angiographic follow-up. This case provides evidence that DCB could be a potential treatment strategy for atherosclerosis located in the MB segment and suggests advantages of the “leave nothing behind” strategy in such clinical scenarios.