Heart rate variability change after circumferential pulmonary vein ablation in patients with paroxysmal ;atrial fibrillation and its relationship with recurrence
10.3969/j.issn.1008-0074.2017.01.21
- VernacularTitle:阵发性房颤患者环肺静脉消融术前术后心率变异性变化及其与复发的关系
- Author:
Chunlin REN
;
Zhiyong CHEN
- Keywords:
Atrial fibrillation;
Catheter ablation;
Heart rate
- From:
Chinese Journal of cardiovascular Rehabilitation Medicine
2017;26(1):78-82
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore dynamic change of heart rate variability (HRV) before and after circumferential pulmonary vein ablation (CPVA ) in patients with paroxysmal atrial fibrillation (PAF) and its relationship with postoperative recur‐rence .Methods:A total of 108 PAF patients undergoing left atrial circumferential pulmonary vein electrically isolated ra‐diofrequency ablation were selected .According to 12‐lead DCG on 3d and three months after operation ,patients were di‐vided into early recurrence group (n=10) ,late recurrence group (n=21) and no recurrence group (n=77) .HRV changes were followed up and compared among all groups .Results:Compared with before ablation ,on 3d after ablation ,there were significant reductions in standard deviation of normal to normal RR intervals calculated over the 24 h period (SDNN) , standard deviation of normal to normal RR intervals in all 5 min segments of the entire recording (SDANN) ,root‐mean square of differences betweensuccessive normal to normal intervals (rMSSD) ,low frequency (LF) ,high frequency (HF) in no recurrence group ;significant rise in mean heart rate ,and significant reductions in SDNN ,LF and LF/HF in early recur‐rence group ( P< 0.05 or <0.01);compared with no recurrence group ,there were significant rise in mean heart rate [(69.3 ± 11.2) beats/min vs .(75.4 ± 14.0) beats/min] ,SDANN[(66.9 ± 25.7)ms vs .(137.5 ± 92.3)ms] ,rMSSD [(22.1 ± 10.6)ms vs .(46.2 ± 19.2)ms] ,LF [(233.1 ± 31.4)ms vs .(251.7 ± 17.3)]and HF[(228.0 ± 82.4) ms2 vs . (508.0 ± 13.5) ms2 ] ,and significant reduction in LF/HF[(1.13 ± 0.53) ms2 vs .(0.41 ± 0.13) ms2 ]in early recurrence group (P<0.05 or < 0.01);significant rise in rMSSD [(23.9 ± 11.10) ms2 vs .(52.0 ± 28.7) ms2 ]and HF[(344.4 ± 103.2) ms2 vs .(482.1 ± 100.6) ms2 ] ,and significant reduction in LF/HF[(1.16 ± 0.41) vs .(0.85 ± 0.43)]in late recur‐rence group , P<0. 05 or <0. 01. Conclusion:Vagal tone reduction may reduce recurrence after CPVA in PAF patients .
