主动固定电极在右室流出道间隔部起搏的临床研究  

The Study on the Application Fixation Leads in Patients with Right Ventricular Septum Pacing

作　　者：郭应军[1] 李雪山[1] 王国军[1] 林冰[1] 

机构地区：[1]广州中医药大学中山附属医院综合ICU,中山528400

出　　处：《热带医学杂志》2008年第7期702-703,709,共3页Journal of Tropical Medicine

摘　　要：目的评价主动固定电极在右室流出道间隔部起搏应用中的可行性和稳定性。方法64例患者随机分为两组,每组32例,一组采用主动固定电极行右室流出道间隔部起搏,另一组应用被动电极行右室心尖部起搏,观察电极置入时X线曝光时间和心电图QRS波宽度,电极置入后随访观察起搏阈值、感知、阻抗,电极脱位及相关并发症。结果主动固定电极组的X线曝光时间均长于被动固定电极(18.76±4.35vs9.03±3.23,P<0.01),主动固定电极组的QRS波时限较被动固定电极组短(0.13±0.03vs0.16±0.04,P<0.01)。术后随访1月两组间的起搏阈值、感知、阻抗均无差异,主动固定电极组未见电极脱位等并发症。结论主动固定电极在右室流出道间隔部起搏中的应用是可行和稳定的。Objective To evaluate the feasibility and stability of the application of active fixation leads with right ventricular septum pacing. Methods 64 patients were randomly and equally divided into two groups. An active fixation lead was positioned in right ventricular septum （for group I） and a passive lead was placed in right ventricular apex （for group II）. The time for leads planting and the width of the QRS waves were recorded. Then pacing thresholds, sensation, impedances, lead dislocation and its complications were compared at 30 days after the operation. Results It took more time to expose in X-ray in Group I than group II （18.76±4.35 vs 9.03±3.23, P〈0.01）. The width of QRS wave of group I was narrower than that of group II （0.13±0.03 vs 0.16±0.04, P〈0.01）. There was no significant difference in the pacing threshold between the two groups, and no patient in group I whose lead was extracted. Conclusion The usage of active fixation lead in patients with ventricular septum pacing is feasible and steady.

关 键 词：主动固定电极 右室流出道 心脏起搏 

分 类 号：R318.11[医药卫生—生物医学工程]