Correlation between deceleration capacity of heart rate and recurrence after catheter radiofrequency ablation of atrial fibrillation
Objective To explore the correlation between deceleration capacity(DC)of heart rate and vagus reflex,postoperative changes in heart rate variability,and prognosis recurrence during catheter radiofrequency ablation of atrial fibrillation.Methods 200 patients with atrial fibrillation who underwent catheter radiofrequency ablation were selected and divided into the recurrence group(n=88)and the non recurrence group(n=1 12)according to prognosis recurrence status at 3 months after surgery.General data of two groups were compared.Logistic regression analysis was used to identify the risk factors affecting the prognosis recurrence of atrial fibrillation after catheter radiofrequency ablation.The correlation between DC of heart rate and the occurrence of vagus reflex and postoperative changes in heart rate variability during catheter radiofrequency ablation was analyzed.Results Univariate analysis showed that there were no statistically significant differences in age,course of disease,sex,alcohol consumption,smoking,diabetes,hypertension,coronary heart disease,vagus reflex,left ventricular ejection fraction(LVEF),left atrial diameter,preoperative heart rate(HR),postoperative HR,preoperative standard diviation of average NN intervals(SDANN),postoperative SDANN,preoperative standard diviation of NN intervals(SDNN),postoperative SDNN,preoperative triangular index,postoperative triangular index,preoperative root mean square of difference between adjacent NN intervals(r-MSSD),preoperative low frequency(LF),postoperative LF,preoperative high frequency(HF),preoperative total power(TP),postoperative TP,preoperative LF/HF,and preoperative DC of heart rate between two groups(P＞0.05).There were statistically significant differences in postoperative r-MSSD,postoperative HF,postoperative LF/HF,and postoperative DC between two groups(P＜0.05).The Logistic regression model showed that postoperative r-MSSD,postoperative HF,postoperative LF/HF,and postoperative DC were all risk factors for postoperative recurrence of atrial fibrillation after catheter radiofrequency ablation(P＜0.05).Compared with the absence of vagus reflex,the preoperative DC and postoperative DC with vagus reflex were lower(P＜0.05).Pearson correlation analysis showed that postoperative DC was positively correlated with postoperative SDNN,postoperative SDANN,postoperative r-MSSD,postoperative triangular index,postoperative TP,postoperative LF,and postoperative HF,while postoperative DC was negatively correlated with postoperative LF/HF(P＜0.05).Conclusion Postoperative r-MSSD,postoperative HF,postoperative LF/HF,and postoperative DC are all risk factors for postoperative recurrence of atrial fibrillation after catheter radiofrequency ablation,and DC of heart rate is closely related to the occurrence of vagus reflex and postoperative heart rate variability during catheter radiofrequency ablation of atrial fibrillation.
atrial fibrillationcatheter radiofrequency ablationdeceleration capacity of heart rate
万方数据
维普
