論文

査読有り 国際誌
2020年2月1日

Elongation of the high right atrium to coronary sinus conduction time predicts the recurrence of atrial fibrillation after radiofrequency catheter ablation.

International journal of cardiology
  • Yusuke Kanemaru
  • ,
  • Yuichiro Arima
  • ,
  • Koichi Kaikita
  • ,
  • Takuya Kiyama
  • ,
  • Shozo Kaneko
  • ,
  • Miwa Ito
  • ,
  • Hiroshige Yamabe
  • ,
  • Kota Motozato
  • ,
  • Kenshi Yamanaga
  • ,
  • Koichiro Fujisue
  • ,
  • Daisuke Sueta
  • ,
  • Seiji Takashio
  • ,
  • Satoshi Araki
  • ,
  • Hiroki Usuku
  • ,
  • Taishi Nakamura
  • ,
  • Takashi Fukunaga
  • ,
  • Satoru Suzuki
  • ,
  • Yasuhiro Izumiya
  • ,
  • Kenji Sakamoto
  • ,
  • Hirofumi Soejima
  • ,
  • Eiichiro Yamamoto
  • ,
  • Hiroaki Kawano
  • ,
  • Hisanori Kanazawa
  • ,
  • Kenichi Tsujita

300
開始ページ
147
終了ページ
153
記述言語
英語
掲載種別
DOI
10.1016/j.ijcard.2019.10.044

BACKGROUND: The impact of intra-atrial conduction delay on the recurrence of atrial tachyarrhythmia after radio frequency catheter ablation (RFCA) has not been fully elucidated. METHODS: We retrospectively analyzed 155 AF patients who were sinus rhythm at the start of RFCA. The conduction time from the onset of the earliest atrial electrogram at the high right atrium (HRA) to the end of the latest electrogram at the coronary sinus (CS) during sinus rhythm was defined as HRA-CS conduction time. Pulmonary vein isolation (PVI) was performed followed by linear roof lesion and complex fractionated atrial electrogram (CFAE) ablation until AF termination. We evaluated atrial tachyarrhythmia recurrence 12 months after RFCA. RESULTS: The follow-up data were available for 148 patients. The recurrence of atrial tachyarrhythmia was noted in 28 (18.9%) patients. Atrial tachyarrhythmia recurrence patients had longer HRA-CS conduction times (151.3 ± 22.1 ms vs 160.1 ± 32.6 ms, p = .017). The patients were divided into the long or short HRA-CS conduction time group. The Kaplan-Meier analysis revealed that the long HRA-CS conduction time group held a higher risk of atrial tachyarrhythmia recurrence (log-rank test, p = .019). The multivariable Cox hazard analysis revealed that a long HRA-CS conduction time was a significant risk factor for the recurrence of atrial tachyarrhythmia, despite a long AF duration, persistent AF, and larger left atrial diameter (LAD) were not statistically significant. CONCLUSIONS: The HRA-CS conduction time was the primary influencing factor that predicted the recurrence of atrial tachyarrhythmia after catheter ablation.

リンク情報
DOI
https://doi.org/10.1016/j.ijcard.2019.10.044
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/31785957