P波时限及P波离散度与房颤射频消融术后复发的关系探讨OA

Objective To analyze the correlation between P-wave duration,P-wave dispersion(Pd)and recurrence after radiofrequency ablation for atrial fibrillation(AF).Methods 100 AF patients undergoing first-time radiofrequency ablation in our hospital from September 2023 to January 2025 were selected,and followed up continuously for 6 months after surgery.According to the recurrence of AF within 6 months after surgery,the patients were divided into early recurrence group(recurrence within 3 months after surgery,n=24),late recurrence group(recurrence between 3 and 6 months after surgery,n=18)and non-recurrence group(no recurrence within 6 months after surgery,n=58).The P-wave duration(Pmin,Pmax),Pd and cardiac function indicators were compared among the three groups,and the correlation between the above indicators was analyzed.Results The Pmin of the early recurrence group and late recurrence group were lower than those of the non-recurrence group,and the Pmax and Pd were higher than those of the non-recurrence group(P<0.05).No statistically significant difference was found in the Pmin,Pmax and Pd between the early recurrence group and the late recurrence group(P>0.05).The left atrial diameter(LAD)of the early recurrence group and late recurrence group were higher than those of the non-recurrence group,and the left ventricular ejection fraction(LVEF)were lower than those of the non-recurrence group(P<0.05).No statistically significant difference was found in the LAD and LVEF between the early recurrence group and the late recurrence group(P>0.05).Pearson correlation analysis results showed that Pmin was negatively correlated with LAD,and positively correlated with LVEF(r=-0.321,0.335,P<0.05);Pmax and Pd were positively correlated with LAD(r=0.249,0.435,P<0.05),and negatively correlated with LVEF(r=-0.298,0.416,P<0.05).Conclusions AF patients with recurrence after radiofrequency ablation have lower Pmin and higher Pmax and Pd.Moreover,there is a significant correlation between P-wave duration,Pd and cardiac function indicators.Clinically,monitoring the changes in P-wave duration and Pd after surgery can help predict the risk of disease recurrence and formulate preventive strategies as early as possible.