Ethanol Ablation of Refractory Premature Ventricular Complex Originating from a Left Ventricular Summit Communicating Vein after Radiofrequency Catheter Ablation Failed in a Dilated Cardiomyopathy Patient.

• Tác giả: Takashi Fujimura, Yoshitaka Hirooka, Tomohito Inage, Masataka Kajiwara, Toshio Katagiri, Minh Thien Nguyen, Tadashi Yamamoto
• Ngôn ngữ: eng
• Thông tin xuất bản: Japan : Internal medicine (Tokyo, Japan) , 2025
• Bộ sưu tập: NCBI
• ID: 699776

Tóm tắt

During follow-up of a 60-year-old patient with dilated cardiomyopathy, a Holter electrocardiogram revealed monomorphic premature ventricular complexes (PVCs) accounting for 21-30% of total beats. Oral beta-blockers led to no improvement in PVC burden. The first radiofrequency catheter ablation attempt identified the PVC arising from the left ventricle summit communicating vein (CV) but failed to eliminate the PVC's origin. The second ablation attempt with selective infusions of 100% ethanol into the summit CV resulted in immediate termination of PVCs. The post-ablation course was uneventful. Echocardiography showed an improved ejection fraction, and a repeated Holter electrocardiogram showed no recurrence of PVCs during follow-up.