根据左心室导联配置监测双心室起搏参数。
Monitoring biventricular pacing parameters depending on the left ventricle lead configuration.
作者信息
Prochazka Antonin, Korpas David
机构信息
Institute of Biophysics and Informatics, 1st Medical Faculty, Charles University, Prague;
出版信息
Exp Clin Cardiol. 2013 Spring;18(2):85-8.
OBJECTIVES
To evaluate whether pacing or sensing configuration has an effect on pacing parameters or their time progression. Three left ventricular (LV) pacing parameters were monitored - the LV pacing threshold, pacing impedance and intrinsic R-wave amplitude.
METHODS
DATA WERE COLLECTED AT THREE INTERVALS: during implantation; between the second and fifth month after implantation (first follow-up); and between the eighth and 15th month after implantation (second follow-up). Repeated-measures ANOVA was used for the statistical analysis.
RESULTS
The impedance, but not its time progression, was significantly higher for the LV tip to LV ring configuration than for other configurations. R-wave amplitude and impedance increased significantly (without dependance on configurations) between implantation and first follow-up, as expected. The time progression of any parameter was not dependent on configuration of the LV lead.
CONCLUSIONS
LV tip to LV ring is the best configuration for maintaining a high impedance level. It is better to maintain an individual approach for pacing threshold and R-wave amplitude, and their settings.
目的
评估起搏或感知配置是否对起搏参数或其时间进程有影响。监测了三个左心室（LV）起搏参数——左心室起搏阈值、起搏阻抗和固有R波振幅。
方法
在三个时间段收集数据：植入期间；植入后第二个月至第五个月之间（首次随访）；以及植入后第八个月至第十五个月之间（第二次随访）。采用重复测量方差分析进行统计分析。
结果
左心室尖端至左心室环配置的阻抗显著高于其他配置，但其时间进程并非如此。正如预期的那样，在植入和首次随访之间，R波振幅和阻抗显著增加（与配置无关）。任何参数的时间进程均不依赖于左心室导线的配置。
结论
左心室尖端至左心室环是维持高阻抗水平的最佳配置。对于起搏阈值和R波振幅及其设置，最好采用个体化方法。
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