Comparison of the catheter ablation outcome in patients between targeting the entrance and exit of the reentry circuit in verapamil-sensitive atrial tachycardia originating from the atrioventricular-node vicinity

Autor: Yoshiya Orita, Kimihiro Kajiyama, Toshiya Soejima, Yurie Fukami, Kyoko Umeji, Ryota Fukuoka, Hisashi Koga, Taichi Okonogi, Kazuki Haraguchi, Hiroshige Yamabe, Keisuke Hirai, Tomohiro Kawasaki
Rok vydání: 2021
Předmět:
Zdroj: Heart and Vessels.
ISSN: 1615-2573
0910-8327
DOI: 10.1007/s00380-021-01791-5
Popis: Verapamil-sensitive atrial tachycardia originating from the atrioventricular node vicinity (AVN-AT) can be eliminated with radiofrequency energy (RF) deliveries targeting either the entrance or exit of its reentry circuit. However, the outcome of these different approaches has not been clarified well. Thus, we compared the catheter ablation outcome targeting the entrance of reentry circuit, identified by the entrainment method (Ent-Group; 21 patients) with that targeting the earliest atrial activation site (EAAS) during AT (Exit-Group; 16 patients). There was no significant difference in the tachycardia cycle length (441.4 ± 87.4 vs. 392.8 ± 64.8 ms, p = 0.0704) or distance from the His bundle (HB) site to the EAAS (6.5 ± 2.0 vs. 7.6 ± 1.8 mm, p = 0.0822) between the Ent- and Exit-Groups. However, distance from the successful ablation site to the HB site in the Ent-Group was significantly longer than that in the Exit-Group (13.4 ± 3.1 vs. 7.6 ± 1.8 mm, p
Databáze: OpenAIRE
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