10.1016/j.amjcard.2018.03.025

10.1016/j.amjcard.2018.03.025 Usefulness of a Low Resting Heart Rate to Predict Recurrence of Atrial Fibrillation After Catheter Ablation in People ≥65 Years of Age a,b a,b a,b a,b a Jintao Wu,MD , Xianwei Fan,MD , Haitao Yang,MD , Lijie Yan,MD , Xianjing Xu,MD , a a,b, a Hongyan Duan,MD , Shanling Wang,MD *, and Yingjie Chu,MD A low resting heart rate (RHR) is associated with an increased risk of atrial fibrillation (AF), and this is common in older people. Whether a low RHR in older people can predict recurrence of AF after catheter ablation is unclear. A total of 329 consecutive patients ≥65 years of age with paroxysmal AF who underwent index circumferential pulmonary vein isolation were prospectively enrolled. A 10-second standard resting 12-lead electrocardio- gram in sinus rhythm was recorded to measure the RR interval, P-wave duration, and PR interval. The RHR was calculated based on the mean RR interval. During a mean follow- up period of 17.0 ± 8.3 months (range, 3 to 32 months), 96 (29.2%) patients developed recurrence of AF. The AF recurrence rate was 46.2%, 32.3%, and 25.4% in patients with an RHR <50, 50 to 59, and ≥60 beats/min, respectively (log-rank test, p = 0.009). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

10.1016/j.amjcard.2018.03.025

Elsevier — Jun 11, 2020

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Abstract

Usefulness of a Low Resting Heart Rate to Predict Recurrence of Atrial Fibrillation After Catheter Ablation in People ≥65 Years of Age a,b a,b a,b a,b a Jintao Wu,MD , Xianwei Fan,MD , Haitao Yang,MD , Lijie Yan,MD , Xianjing Xu,MD , a a,b, a Hongyan Duan,MD , Shanling Wang,MD *, and Yingjie Chu,MD A low resting heart rate (RHR) is associated with an increased risk of atrial fibrillation (AF), and this is common in older people. Whether a low RHR in older people can predict recurrence of AF after catheter ablation is unclear. A total of 329 consecutive patients ≥65 years of age with paroxysmal AF who underwent index circumferential pulmonary vein isolation were prospectively enrolled. A 10-second standard resting 12-lead electrocardio- gram in sinus rhythm was recorded to measure the RR interval, P-wave duration, and PR interval. The RHR was calculated based on the mean RR interval. During a mean follow- up period of 17.0 ± 8.3 months (range, 3 to 32 months), 96 (29.2%) patients developed recurrence of AF. The AF recurrence rate was 46.2%, 32.3%, and 25.4% in patients with an RHR <50, 50 to 59, and ≥60 beats/min, respectively (log-rank test, p = 0.009).

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