贾维克2000心脏:桥梁到肌细胞恢复的潜力
S Westaby1, T Katsumata, R Houel
1Oxford Heart Centre, Oxford, UK.
Circulation
|October 14, 1998
概括
贾维克2000心脏,一个心内轴流,显示了心力衰竭治疗的希望. 这种血在绵羊中表现出可靠性和易于移除,支持其作为恢复的机械桥梁的使用.
科学领域:
- 生物医学工程 生物医学工程
- 心血管研究研究心血管研究
- 医疗器械技术 医疗器械技术
背景情况:
- 机械循环支持是心力衰竭管理的一个关键策略.
- 内心轴流动螺旋为机械桥梁恢复提供了一种新的方法.
- 验证新的血技术对于推进治疗选择至关重要.
研究的目的:
- 为了评估Jarvik 2000 Heart,一个新的心脏内轴流动螺旋,用于机械循环支持.
- 在动物模型中确定设备的机械可靠性,生物相容性和血液动力学功能.
- 为了评估的适用性作为桥梁到左心室恢复.
主要方法:
- 在30只羊身上植入Jarvik 2000心脏.
- 在不同转速 (8000-12000rpm) 上评估血液动力学功能.
- 评估生物相容性,包括血液溶解和血栓塞栓症,通过尸检研究和选择性探索剂.
主要成果:
- 实现了高达8L/分钟的流量,增加了心脏输出量和平均动脉压.
- 观察到微不足道的血液溶解和没有证据的血栓栓塞或初级血栓形成.
- 挑战包括华法林抗凝失败和外部电源中断;然而,设备的移除是直接的和安全的.
结论:
- 贾维克2000心脏代表了机械循环支持的血技术的重大进步.
- 它的可靠性和易于移除支持其用于桥梁到肌细胞恢复,移植或长期支持的应用.
- 该设备扩大了心力衰竭患者机械循环支持的治疗范围.
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