Relationship between the ablation index, lesion formation, and incidence of steam pops

Autor: Hitoshi Mori, Ritsushi Kato, Naokata Sumitomo, Yoshifumi Ikeda, Koji Goto, Sayaka Tanaka, So Asano, Mai Tahara, Takahiko Nagase, Shiro Iwanaga, Toshihiro Muramatsu, Kazuo Matsumoto
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Journal of Arrhythmia, Vol 35, Iss 4, Pp 636-644 (2019)
Druh dokumentu: article
ISSN: 1883-2148
1880-4276
DOI: 10.1002/joa3.12195
Popis: Abstract Background The ablation index (AI) is reported to be useful for a durable pulmonary vein isolation (PVI). However, there have been no studies investigating the relationship between the power, contact force (CF), AI, and steam pops. Methods Using an in vitro model, ablation energy was delivered until a steam pop occurred and the time to the steam pop and AI when the steam pop occurred were measured. The experiment was performed with a combination of various powers (20, 30, 40, and 50 W) and contact forces (CFs) (10, 30, and 50 g) 20 times for each setting. The analysis consisted of two protocols. The first protocol was a comparison between the ablation power and several parameters under the same CF (10, 30, and 50 g). The second protocol was a comparison between the CF and several parameters under the same power (20, 30, 40, and 50 W). The correlation between the lesion formation and ablation parameters was evaluated. Results The AI value when steam pops occurred varied depending on the ablation settings. All AI median values were
Databáze: Directory of Open Access Journals
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