使用植入式血液动力学监测器的初始经验
D M Steinhaus1, R Lemery, D R Bresnahan
1Department of Cardiology, University of Missouri-Kansas City School of Medicine, USA.
Circulation
|February 15, 1996
概括
可植入的血液动力学监测器可以测量长期的右心室氧和和肺动脉压力在门诊患者. 这项技术显示出可行性和通常可靠的传感器功能,用于长期的血液动力学监测.
科学领域:
- 生物医学工程 生物医学工程
- 心血管生理学心血管生理学
- 可以植入的医疗器械
背景情况:
- 心内血动力学监测通常仅限于急性护理环境中的短时间.
- 慢性监测对于管理严重的左心室功能障碍等疾病至关重要.
- 现有的方法缺乏连续的,长期的门诊血液动力学数据.
研究的目的:
- 开发和评估一种可植入的血液动力学监测仪.
- 评估慢性测量右心室氧和和肺动脉压力的可行性.
- 为了确定植入器械的安全性和可靠性.
主要方法:
- 开发了一种可植入装置,具有皮下控制器和右心室和肺动脉的透静导管.
- 在10名患有严重左心室功能障碍的患者中植入该设备.
- 通过挑动作和长期随访,同时进行导管测量来评估设备的性能.
主要成果:
- 该装置在植入器时成功测量了肺动脉压力 (平均40 +/- 12 mm Hg) 和右心室氧和度 (平均51%) .
- 证明了对运动和酸甘等机动的预期生理反应.
- 在随访期间 (0.5-15.5个月) 与气球漂浮导管相比没有显著差异.
- 经验丰富的脱落 (4/10),传感器漂移 (3/10) 和传感器故障 (2/10).
- 4名患者死亡,4名患者接受了移植;没有观察到显著的组织损伤.
结论:
- 使用可植入传感器技术的慢性血液动力学监测在门诊患者中是可行的.
- 该设备通常耐受性良好,没有显著的不良影响.
- 传感器随着时间的推移提供可靠的数据,尽管长期的临床实用性需要进一步建立.
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