内科理论与实践2017，Vol.12Issue(1)：50-53,4.DOI:10.16138/j.1673-6087.2017.01.011
心房螺旋电极导线植入术后起搏阈值的急性改变
Acute change in pacing threshold after implantation of atrial active fixation lead
高洁 1王晓群 1李畅 1王义龙 1倪熠 1顾刚1
作者信息
- 1. 上海交通大学医学院附属瑞金医院心血管内科,上海200025
- 折叠
摘要
Abstract
Objective To study the acute change in pacing threshold after implantation of atrial active fixation lead to evaluate whether the implantation of active fixation lead is safe and effective.Methods Sixty-eight patients who were implanted with atrial active fixation lead for new pacemaker implantation from November 2015 to June 2016 were enrolled.The patients were divided into high threshold group (＞1 V) and low threshold group (≤ 1 V) based on the initial pacing threshold at implantation.Pacing thresholds were collected just during the operation,and 1,3,6 and 24 h after operation.Results Among the 68 patients,initial pacing threshold at implantation ≤ 1 V [mean (0.79±0.20) V] was demonstrated in 35(51％) leads,and falling to (0.69±0.34) V just 1 h after operation,to (0.61±0.21) V 3 h after operation,to (0.59±0.19) V 6 h after operation,and to (0.58±0.18) V 24 h after operation,thresholds 3,6 and 24 h after operation were significantly lower than threshold at implantation (all P＜0.01).Initial pacing threshold at implantation ＞1 V [mean (1.48±0.20) V] was demonstrated in 33 (49％) leads,and falling to (0.85±0.32) V just 1 h after operation,to (0.74±0.23) V 3 h after operation,to (0.64±0.18) V 6 h after operation and to (0.60±0.24) V 24 h after operation,the difference in threshold at implantation with that at 1,3,6,and 24 h after operation was statistically significant (all P＜0.01).Except for 3 h after operation,the difference in pacing threshold between the two groups was not statistically significant (all P＞0.05).Conclusions Atrial active fixation lead is commonly associated with an initially high pacing thresholds that will fall rapidly after operation.The majority will have a threshold ＜1 V on the following day.The initial high pacing threshold at implantation should not be taken as the criterion for changing the pacing site immediately.关键词
心脏起搏器/螺旋电极/起搏阈值Key words
Cardiac pacemaker/Active fixation lead/Pacing threshold分类
医药卫生引用本文复制引用
高洁,王晓群,李畅,王义龙,倪熠,顾刚..心房螺旋电极导线植入术后起搏阈值的急性改变[J].内科理论与实践,2017,12(1):50-53,4.
