AUTHOR=Kim Seok Hyun , Lee Sang Hyun , Kim Jeongsu , Chun Kook Jin TITLE=Multiple coronary artery perforation as a fatal complication during the management of an undeflatable stent balloon: a case report JOURNAL=Frontiers in Cardiovascular Medicine VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/cardiovascular-medicine/articles/10.3389/fcvm.2025.1565014 DOI=10.3389/fcvm.2025.1565014 ISSN=2297-055X