Predictive value of ECG P-wave parameters of Pd and Pmax on prognosis of atrial fibrillation after radiofrequency catheter ablation
Objective To investigate the predictive value of ECG P-wave parameters on the prognosis of atrial fibrillation(AF)after radiofrequency catheter ablation(RFCA).Methods A total of 70 AF patients who had undergone RFCA were selected.The P-wave dispersion(P d)and the maximum P-wave duration(P max)of their ECGs before operation were recorded.According to the postoperative prognosis(the presence or absence of AF recurrence),they were divided into good prognosis group and poor prognosis group.Logistic regression analysis was used to explore the correlation between P-wave parameters of ECG and prognosis of AF patients after RFCA.ROC curve analysis was utilized to evaluate the predictive value of P-wave parameters on the prognosis of AF patients after RFCA.Results Among the 70 AF patients,30 cases had poor prognosis while 40 cases had good prognosis after RFCA.Pd and Pmax in the poor prognosis group were both higher than those in the good prognosis group(both P＜0.05).There were no statistically significant differences in other parameters between the two groups(all P＞0.05).The results of Logistic regression analysis revealed that Pd and Pmax were risk factors influencing the prognosis of AF patients after RFCA(OR＞1,P＜0.05).The ROC curve analysis showed that the AUC values of P d,P max and the combined indicators in assessing the risk factors of poor prognosis among AF patients after RFCA were 0.751,0.760 and 0.900,respectively.Conclusion The P-wave parameters of ECG are related to the prognosis of AF patients after RFCA;the combined detection of Pd and Pmax could improve the prognostic prediction efficiency.
atrial fibrillationradiofrequency catheter ablationECG P-wave parameterprognosispredictive value
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