Unloading and successful treatment with bioresorbable stents during percutaneous coronary intervention:A case report  

作　　者：Tao Sun Ming-Xue Zhang Yan Zeng Li-Hua Ruan Yi Zhang Cheng-Long Yang Zhang Qin Jing Wang Hai-Mei Zhu Yun Long 

机构地区：[1]Department of Cardiology,The First Hospital of Hunan University of Chinese Medicine,Changsha 410007,Hunan Province,China [2]Teaching and Research Section of Chinese Internal Medicine,The First Hospital of Hunan University of Chinese Medicine,Changsha 410007,Hunan Province,China [3]Department of Pain,The First Hospital of Hunan University of Chinese Medicine,Changsha 410007,Hunan Province,China

出　　处：《World Journal of Cardiology》2024年第8期484-490,共7页世界心脏病学杂志（英文版）（电子版）

基　　金：Supported by Health Commission of Hunan Province,No.202203014389;Chinese Medicine Research Project of Hunan Province,No.A2023051;the Natural Science Foundation of Hunan Province,No.2024JJ9414.

摘　　要：BACKGROUND With the development of percutaneous coronary intervention(PCI),the number of interventional procedures without implantation,such as bioresorbable stents(BRS)and drug-coated balloons,has increased annually.Metal drug-eluting stent unloading is one of the most common clinical complications.Comparatively,BRS detachment is more concealed and harmful,but has yet to be reported in clinical research.In this study,we report a case of BRS unloading and successful rescue.This is a case of a 59-year-old male with the following medical history:“Type 2 diabetes mellitus”for 2 years,maintained with metformin extended-release tablets,1 g PO BID;“hypertension”for 20 years,with long-term use of metoprolol sustained-release tablets,47.5 mg PO QD;“hyperlipidemia”for 20 years,without regular medication.He was admitted to the emergency department of our hospital due to intermittent chest pain lasting 18 hours,on February 20,2022 at 15:35.Electrocardiogram results showed sinus rhythm,ST-segment elevation in leads I and avL,and poor R-wave progression in leads V1–3.High-sensitivity troponin I level was 4.59 ng/mL,indicating an acute high lateral wall myocardial infarction.The patient’s family requested treatment with BRS,without implanta-tion.During PCI,the BRS became unloaded but was successfully rescued.The patient was followed up for 2 years;he had no episodes of angina pectoris and was in generally good condition.CONCLUSION We describe a case of a 59-year-old male experienced BRS unloading and successful rescue.By analyzing images,the causes of BRS unloading and the treatment plan are discussed to provide insights for BRS release operations.We discuss preventive measures for BRS unloading.

关 键 词：Coronary artery diseases Percutaneous coronary intervention Bioresorbable stents Stent unloading Stent release Intravascular ultrasound Case report 

分 类 号：R54[医药卫生—心血管疾病] R318[医药卫生—内科学]