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Journal of cardiovascular electrophysiology v.28 no.2, 2017년, pp.159 - 166   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Blanking Period Phenomenon After a Second Atrial Fibrillation Ablation Session: The Application and Factors Related to It

FUJIMOTO, YUHI (Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan ) ; HAYASHI, MEISO (Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan ) ; IWASAKI, YU‐KI (Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan ) ; YODOGAWA, KENJI (Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan ) ; YAMAMOTO, TEPPEI (Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan ) ; TSUBOI, IPPEI (Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan ) ; TAKAHASHI, KENTA (Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan ) ; IZUMI, YUKI (Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan ) ; OKA, EIICHIRO (Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan<count ) ; HAGIWARA, KANAKO ; MIYAUCHI, YASUSHI ; SHIMIZU, WATARU ;
  • 초록  

    Blanking Period After a Second AF Ablation Introduction The concept of a 3‐month blanking period is widely accepted after the first radiofrequency catheter ablation (RFCA) session for atrial fibrillation (AF). We sought to investigate whether this phenomenon was also observed after a 2nd session, and which factors were related to it. Methods and Results We conducted a prospective observational study including all AF patients who underwent RFCA since 2010. The patients who underwent a second RFCA were followed without any antiarrhythmic drugs. Their clinical background, laboratory data, echocardiographic parameters, ablation procedures, and arrhythmia recurrences were analyzed. Recurrences were classified into early period recurrences (EPRs) and late period recurrences (LPRs) recorded within and after the first 3 months postablation, respectively. Among 925 patients who underwent an initial AF ablation, 2nd sessions were performed in 250 patients, and EPRs and LPRs occurred in 53 (21.2%) and 54 (21.6%) patients, respectively. Although EPRs were an independent predictor of LPRs (hazard ratio [HR], 8.01; 95% confidence interval [CI] 4.03–15.93, P Conclusion A 3‐month blanking period was also applicable after the 2nd AF ablation session. This phenomenon was related to a lower left atrial pressure demonstrated by the E/E′ ratio.


  • 주제어

    atrial fibrillation .   blanking period .   echocardiography .   E/E' ratio .   radiofrequency catheter ablation .   2nd session.  

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