右心室主动电极与被动电极即刻起搏参数的临床研究

A Comparative Study about Pacing Paramerers Between Active Lead and Passive Lead

目的:探讨右心室主动电极起搏与被动电极起搏二者之间起搏参数的差异。方法:永久心脏起搏器患者186例,其中93例为右室间隔部主动电极起搏,93例为右室心尖部被动电极起搏,于植入时测试单极起搏阈值、感知及阻抗,所有患者的起搏脉宽均为0.42ms。结果:有效起搏时主动电极组与被动电极组比较起搏阈值无显著差异(1.19±0.25 vs 0.98±0.25)V(P>0.05),被动电极组感知显著高于主动电极组感知(8.57±5.08 vs 7.69±4.21)mV(P<0.05),被动电极组阻抗显著高于主动电极组阻抗(718.60±239.50 vs 656.88±165.47)Ω(P<0.05)。结论:被动电极即刻感知优于主动电极,阻抗则高于主动电极。

Objective To investigate the difference between the use of the active lead lines and the passive lead lines.Methods 186 cases of pacemaker patients were divided into 2 groups,93 cases of pacemaker patients were implanted the active lead lines,93 cases of pacemaker patients were implanted the passive lead lines,and test the pacing threshold,sensing and impedance,The pacing pulse width are 0.42ms.Results The pacing threshold between the two groups had no significant difference(1.19±0.25 vs 0.98±0.25)V(P>0.05),the pacing sensing in the passive leads were higher(8.57±5.08 vs 7.69±4.21)mV(P<0.05).the pacing impedance in the passive leads group were also higher than the active leads group(718.6 ± 239.5 vs 656.9 ± 165.5) Ω(P<0.05).Conclusion The pacing sensing of the passive leads was better than the active leads.