摘要
Abstract
Objective To explore the predictive value of echocardiographic examination of left atrium and left atrial appendage function in the recurrence of patients with long-standing persistent atrial fibrillation(AF)after radiofrequency ablation(RFA).Methods A retrospective analysis was conducted on the clinical data of 121 patients with long-standing persistent AF treated at Lishui People's Hospital from February 2019 to January 2022.All patients underwent echocardiographic examination 18 month after AF ablation,and measurements of the left atrium and left atrial appendage were performed.Follow-up was conducted for 18 months,and patients were divided into two groups based on recurrence:the recurrence group(25 cases)and the non-recurrence group(96 cases).Comparisons were made between the two groups for left atrial appendage and left atrial functional parameters[left atrial appendage maximum volume(LAAVmax),left atrial appendage minimum volume(LAAVmin),left atrial maximum volume(LAVmax),left atrial minimum volume(LAVmin),left atrial appendage ejection fraction(LAAEF),left atrial appendage ejected volume(LAAeV),left atrial ejection fraction(LAEF),left atrial ejection volume(LAEV)],and the predictive efficacy of each parameter for postoperative recurrence was analyzed using ROC curve analysis.Results Compared with the non-recurrent group,the recurrence group had increased LAAVmax,LAAVmin,LAVmax,and LAVmin(t=2.298,3.669,4.186,4.381;P<0.05),and decreased LAAeV,LAAEF,LAEF,and LAEV(t=4.671,5.337,5.611,2.046;P<0.05).Logistic regression analysis and Cox regression analysis showed that LAAVmin,LAVmax,LAVmin,LAAeV,LAAEF,LAEF and LAEV were influencing factors for postoperative recurrence(P<0.05).The ROC curve analysis showed that the combined prediction of recurrence by eight echocardiographic parameters had an AUC of 0.910,with a sensitivity of 100.0%and a specificity of 80.2%.Conclusion Left atrium and left atrial appendage functional parameters can predict the recurrence of patients with long-standing persistent AF after RFA.关键词
左心房/左心耳功能/心房颤动/射频消融术Key words
Left atrium/Left atrial appendage function/Atrial fibrillation/Radiofrequency ablation
