Epicardial connection between the right-sided pulmonary venous carina and 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 PV isolation (PVI) despite its non-essential role in ipsilateral PVI from the anatomical (endocardial) viewpoint. Although Bachmann ’s bundle (BB) is a common and main interatrial band, local variations of 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