摘要
目的比较心室主动固定电极（螺旋电极）与被动固定电极术后各参数的变化。方法将入选患者按植入电极分为螺旋电极组（n=50）和被动电极组（rt=50），测定两组术中，术后1周，术后1、2、3、6个月在平静状态下起搏阈值、V波电压及阻抗。结果螺旋电极组术后1周起搏阈值和阻抗均较术中下降，差异有统计学意义（P〈005），术后6个月起搏阈值、阻抗变化不明显；被动电极组起搏阈值、阻抗术后1周较术中略有升高，差异无统计学意义（P〉005），术后1周略下降（P〉0．05），术后6个月内保持稳定状态，术后两组间各时间点测定值比较，差异有统计学意义（P〈0．05）；两组术中、术后V波电压测定值变化不明显（P〉0．05），各时间点V波电压比较，差异无统计学意义（P〉0．05）。结论主动螺旋电极安全，脱位率低，术后起搏参数稳定，可用于长期稳定起搏。
Objective To compare the changes of pacing parameters in patients with ventricular active and passive fixation leads. Methods 100 patients underwent implantation of a pacemaker with a ventricular active（active fixation group, n=50） or passive （ passive fixation group, n=50 ） fixation lead. Pacing parameters were measured during operation and at 1 week, 1, 2, 3 and 6 months after operation. Results Pacing threshold and lead impedance decreased significantly 1 week after operation （P 〈 0.05 } and remained stable to 6 months in active fixation group. The parameters changed slightly in passive fixation group. The measures of each time point were significantly different between two groups. V-wave amplitude was similar and remained unchanged during follow up in both groups. Conclusion Pacing threshold and impedance decrease in active fixation group and V-wave amplitude remains unchanged in both groups after operation. All parameters remain stable during long-term follow-up.
出处
《心电学杂志》
2009年第6期403-405,共3页
Journal of Electrocardiology(China)
关键词
主动固定电极
被动固定电极
起搏参数
Active fixation lead
Passive fixation lead
Pacing parameter
