Serial examinations of right coronary artery directly injured by radiofrequency catheter ablation with optical coherence tomography and intravascular ultrasound

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• 作者：Makoto Araki ; Tetsumin Lee ; Tadashi Murai…
• 关键词：Catheter ablation ; Complication ; Coronary artery injury ; PCI ; FD ; OCT ; IVUS
• 刊名：Cardiovascular Intervention and Therapeutics
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：32
• 期：1
• 页码：62-65
• 全文大小：
• 刊物主题：Cardiology; Interventional Radiology;
• 出版者：Springer Japan
• ISSN：1868-4297
• 卷排序：32

文摘

A 42-year-old man was referred for ablation. The origin of VT was localized close to the right coronary ostium. During ablation, the catheter tip inadvertently fell into a RCA ostium. The patient developed chest discomfort and ST-segment elevation in the inferior leads was observed. Coronary angiography confirmed severe narrowing of the ostial RCA. Stenting was deferred after satisfactory dilatation by a balloon. The patient discharged with eventless clinical course afterward. Follow-up coronary angiographic, FD-OCT, IVUS, and iMap examinations were performed at 3, 6, and 15 months after index procedure. The lesion showed progressive positive remodeling associated with intimal proliferation, medial thickening, and lumen narrowing up to 6 months. The patient underwent stenting at 15 months after the index procedure. The lesion required high-pressure post dilatation to obtain optimal stent expansion.