两种体动感知方式频率适应性起搏器的频率适应特点  

The Rate Responsive Characteristics With Two Forms of Activity-Sensing Rate-Adaptive Pacemaker

作　　者：马坚[1] 王方正[1] 张奎俊[1] 余培桢[1] 王锦志[1] 田瑞国[1] 朱克平[1] 鲁志民[1] 李晶[1] 孙瑞龙[1] 陈新[1] 

机构地区：[1]中国医学科学院阜外心血管病医院临床电生理研究室

出　　处：《心脏起搏与心电生理杂志》1995年第4期183-185,共3页

摘　　要：通过运动试验和干扰试验，比较两种体动感知频率适应性起搏器（ＲＡＰＭ）的频率适应特点。结果显示：平板运动时，体动振动感知和体动加速度感知两种ＲＡＰＭ的起搏频率分别增加２３和２１ｐｐｍ（Ｐ均＜０．０５）；体动加速度感知ＲＡＰＭ的起搏频率随运动负荷增加而显著加快（例如踏车运动负荷为２５，５０和７５Ｗ时，起搏频率分别为８３±７，９７±２１，１１３±２３ｐｐｍ，与前一负荷相比Ｐ均＜０．０５），体动振动感知ＲＡＰＭ的起搏频率则因外界干扰误增２３～３２ｐｐｍ（Ｐ＜０．０５）。结果表明体动加速度感知ＲＡＰＭ的频率适应程度与运动负荷的相关性以及频率适应特异性均好于体动振动感知ＲＡＰＭ。The rate responsive characteristics with two forms of activity-sensing rate-adaptive pacemaker(RAPM),acceleration-sensing and vibration-sensing RAPM,were compared by means of exercise and interference tests.The results showed that during treadmill exercise pacing rate increased by 23 ppm in patients with acceleration-sensing RAPM and 21 ppm with vibration-sensing RAPM(P<0.05).The increment in pacing rate of acceler ation-sensing RAPM was proportioned to the exercise level.Conversely,inappropriate 23～32 ppm faster pacing rate of vibration-sensing RAPM was induced by environmental interference.This study indicated that the proportionality and specificity of rate reponse were better in acceleration-sensing RAPM than in vibration-sensing one.

关 键 词：心脏起搏器 体动感知 频率适应性 

分 类 号：R318.11[医药卫生—生物医学工程]