Related Experiment Video
Updated: Jul 14, 2025

Tachycardia-Induced Cardiomyopathy As a Chronic Heart Failure Model in Swine
Published on: February 17, 2018
Bidirectional rotating biatrial tachycardia
Koichiro Yamaoka1, Tomoyuki Arai1, Masao Takahashi1
1Department of Cardiology Tokyo Metropolitan Hiroo Hospital Tokyo Japan.
Abstract:
A 72-year-old man was treated for recurrent atrial tachycardia (AT) and underwent ablation. The AT was diagnosed as bi-AT based on the activation map and the postpacing interval. Another AT appeared and was diagnosed as bi-AT by the same method. Surprisingly, the circuits of both ATs were perfectly matched and rotated in opposite directions. The left atrial anteroseptal wall was ablated during the AT. The AT was immediately stopped and was no longer induced.
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