主动固定螺旋电极在右室流出道间隔部起搏中的应用体会  

Application of Active Fixation Lead in Patients with Right Ventricular Outflow Septum Pacing

作　　者：陶四明[1] 张荣华[1] 李易[1] 洪云飞[1] 杨锋[1] 吕云[1] 

机构地区：[1]云南省第二人民医院心脏中心内科,云南昆明650021

出　　处：《昆明医学院学报》2007年第2期69-72,共4页Journal of Kunming Medical College

摘　　要：目的探索采用主动固定螺旋电极行右室间隔部起搏的临床可行性及间隔部电极定位的技术方法学要点.方法从需要安装双腔起搏器的患者中随意选择54例行右室流出道间隔部起搏植入,男性31例,女性23例,年龄50-86（67.7±8.6）岁,将心室起搏螺旋电极先后定位于右室心尖部及右室流出道间隔部并测试起搏参数.结果右室流出道间隔部电极定位成功率为98.15%,该部位起搏参数满足起搏要求[起搏阈值（0.73±0.12）V],同时起搏QRS时限较心尖部变窄（130.45±18.24,153.11±20.10,P〈0.001）.结论采用主动固定螺旋电极行右室流出道间隔部起搏安全性高、可行性好.Objective To investigate the feasibility and methodology of active fixation lead on patients under right ventricular outflow tract septum （RVOTS） pacing. Methods Fifty DDD pacemaker patients were enrolled 31 male, 23 female, 50 - 86 years old, mean age 67.7 ± 8.6. Ventricular active fixation lead was implanted in the right ventricular apex （RVA） and RVOTS successively and pacing parameter was tested. Results The success rate of RVOTS active fixation lead implantation was 98. 15%. Mean lead threshold was 0. 73 ± 0. 12 V. Pacing QRS duration show a significant difference between RVOTS pacing and RVA pacing, 130. 45 ± 18.24 and 153.11 ± 20. 10, respectively （P 〈 0. 001 ）. Conclusion The RVOTS pacing with active fixation lead is feasible and safe.

关 键 词：心血管病学 主动固定电极 右室流出道 

分 类 号：R318.11[医药卫生—生物医学工程]