The impact of the atrial wall thickness in normal/mild late‐gadolinium enhancement areas on atrial fibrillation rotors in persistent atrial fibrillation patients

Autor: Toshihiro Nakamura, Kunihiko Kiuchi, Koji Fukuzawa, Mitsuru Takami, Yoshiaki Watanabe, Yu Izawa, Makoto Takemoto, Jun Sakai, Atsusuke Yatomi, Yusuke Sonoda, Hiroyuki Takahara, Kazutaka Nakasone, Kyoko Yamamoto, Yuya Suzuki, Ken‐ichi Tani, Noriyuki Negi, Atsushi Kono, Takashi Ashihara, Ken‐ichi Hirata
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Journal of Arrhythmia, Vol 38, Iss 2, Pp 221-231 (2022)
Druh dokumentu: article
ISSN: 1883-2148
1880-4276
DOI: 10.1002/joa3.12676
Popis: Abstract Background Some of atrial fibrillation (AF) drivers are found in normal/mild late‐gadolinium enhancement (LGE) areas, as well as moderate ones. The atrial wall thickness (AWT) has been reported to be important as a possible AF substrate. However, the AWT and degree of LGEs as an AF substrate has not been fully validated in humans. Objective The purpose of this study was to evaluate the impact of the AWT in normal/mild LGE areas on AF drivers. Methods A total of 287 segments in 15 persistent AF patients were assessed. AF drivers were defined as non‐passively activated areas (NPAs), where rotational activation was frequently observed, and were detected by the novel real‐time phase mapping (ExTRa Mapping), mild LGE areas were defined as areas with a volume ratio of the enhancement voxel of 0% to
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