Relationship between Effective Refractory Period and Inducibility of Atrial Fibrillation from the Superior Vena Cava after Pulmonary Vein Isolation

Autor:	Yasunobu Yamagishi, Yasushi Oginosawa, Yoshihisa Fujino, Keishiro Yagyu, Taro Miyamoto, Keita Tsukahara, Hisaharu Ohe, Ritsuko Kohno, Masaharu Kataoka, Haruhiko Abe
Rok vydání:	2022
Předmět:	Vena Cava Superior genetic structures Pulmonary Veins Atrial Fibrillation Catheter Ablation Odds Ratio Humans General Medicine Cardiology and Cardiovascular Medicine
Zdroj:	International Heart Journal. 63:498-503
ISSN:	1349-3299 1349-2365
DOI:	10.1536/ihj.21-803
Popis:	Background: In terms of the pulmonary vein (PV), atrial fibrillation (AF) patients have a shorter effective refractory period (ERP) and a larger dispersion of the ERP than patients without AF. Although the frequency of AF from the superior vena cava (SVC) was the highest among non-PV foci, the characteristics of the ERP in the SVC (SVC-ERP) were unclear. The purpose of this study was to elucidate the relationship between SVC-ERP and the inducibility of AF after pulmonary vein isolation (PVI). Methods and Results: Consecutive 28 patients who underwent PVI were included. After successful PVI, the SVC-ERP was measured at three positions in SVC. Rapid electrical stimuli were delivered at the shortest SVC-ERP to induce AF. Patients in whom AF was induced were assigned to the SVC-induced group (SIG) and the remaining patients were the non-SVC-induced group (non-SIG). The size of the SVC sleeve was evaluated using three-dimensional electroanatomic mapping. The SIG had a significantly shorter average SVC-ERP (236.0±25.2 vs. 294.8±36.8 ms, p
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77de34479ba1aefca8fda59037f09226 https://doi.org/10.1536/ihj.21-803 Zobrazit plný text záznamu