Efficacy and safety of high-power intracavitary vein electrical isolation procedures for paroxysmal atrial fibrillation
Objective To investigate the efficacy and safety of high-power superior vena cava electrical isolation for paroxysmal atrial fibrillation.Methods A total of 90 patients with paroxysmal atrial fibrillation who were hospitalized in the First Affiliated Hospital of Zhengzhou University from May 2021 to May 2022 and intended to receive electric isolation of superior vena cava at the same time were selected as the study objects.They were divided into high-power group and conventional power group according to power,with 45 cases in each group.Circumferential pulmonary vein vestibular isolation was performed in both groups under the guidance of ablation index.In the high-power group,the superior vena cava electrical isolation was performed at 50 W,while in the conventional power group,the superior vena cava electrical isolation was performed at 35 W.The operation time and complications of the superior vena cava isolation were compared between the two groups.Results The operation time of high power group was significantly shorter than that of conventional power group,and the difference was significant(P<0.05).There was no significant difference in the incidence of complications between the two groups(P>0.05).Conclusions High power electric isolation of superior vena cava significantly can shorten the time,without increasing the incidence of complications,which is safe and effective.
Superior vena cava isolationHigh-powerAtrial fibrillationRadiofrequency ablation