Epicardial connection between the right-sided pulmonary venous carina and the right atrium in patients with atrial fibrillation: A possible mechanism for preclusion of pulmonary vein isolation without carina ablation

Ablation of the pulmonary venous (PV) carina is occasionally required for pulmonary vein isolation (PVI) despite its nonessential role in ipsilateral PVI from the anatomical (endocardial) viewpoint. Although the Bachmann bundle (BB) is a common and main interatrial band, local variations in small tongues of muscular fibers were frequently found in autopsy studies.

Source: Heart Rhythm - November 19, 2018 Category: Cardiology Authors: Kentaro Yoshida, Masako Baba, Yasutoshi Shinoda, Tomohiko Harunari, Yasuaki Tsumagari, Naoya Koda, Kosuke Hayashi, Takumi Yaguchi, Hiroaki Watabe, Hideyuki Hasebe, Kazutaka Aonuma, Noriyuki Takeyasu, Akihiko Nogami, Masaki Ieda Source Type: research