表心贴片对除动脉值的影响,非胸腔切除术带头配置
P C Fotuhi1, R E Ideker, S F Idriss
1Medical Clinic I, Charité Hospital, Berlin, Germany.
Circulation
|November 15, 1995
概括
不活跃的上心脏贴片显著增加了内部系统的除能量需求. 如果左心室贴片是非功能性的,贴片的去除可能是必要的有效的除.
科学领域:
- 心脏病学 心脏病学
- 生物医学工程 生物医学工程
- 电子生理学 电子生理学
背景情况:
- 之前已经证明,心底贴片电极可以降低胸前除功效.
- 这项研究研究了非活跃的心脏表膜网贴片对使用非胸腔切除术内部配置的除能量需求的影响.
研究的目的:
- 为了评估非活跃的上心脏贴片对非胸腔切除术内部形的除能量需求的影响.
- 确定不活跃贴片的位置 (右心室与左心室) 是否会影响除门 (DFT).
主要方法:
- 一个双相冲击波形式被送给了16只接受了上下除方案的狗.
- 确定除门 (DFT) 时有或没有两个不活跃的上心脏贴片,并有一个不活跃的右心室 (RV) 或左心室 (LV) 贴片.
- 非胸切除术的领先配置包括RV到上腔静脉 (SVC),RV到SVC加上皮下阵列,以及RV到皮下胸板.
主要成果:
- 在测试的非胸切除术形配置中,两个不活跃的上心贴片增加了49%至97%的DFT能量.
- 在上心脏贴片之间进行除时,达到了最低的DFT.
- 一个不活跃的LV补丁显著增加了所有测试配置的DFT电压要求,而一个不活跃的RV补丁没有.
结论:
- 不活跃的上心脏贴片可以显著增加非胸切除系统的除能量需求,这可能是由于绝缘效应和潜在的场干扰.
- 临床含义表明,应该将功能表心贴片整合到除系统中.
- 不起作用的 LV 贴片需要在手术期间进行彻底的 DFT 测试,并且可能需要移除以确保有效的基于透静脉的系统.
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