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相关概念视频

Cardiac Catheterization II: Right Heart Catheterization01:21

Cardiac Catheterization II: Right Heart Catheterization

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Right Heart Catheterization: An OverviewRight heart catheterization is an invasive diagnostic procedure that measures right-sided cardiac and pulmonary artery pressures, calculates cardiac output, and identifies intracardiac shunts. It provides detailed hemodynamic data essential for diagnosing and managing various cardiovascular conditions, such as pulmonary hypertension.Access SitesCommon access sites for right heart catheterization include the internal jugular vein in the neck region, the...
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相关实验视频

Updated: Sep 10, 2025

Author Spotlight: Assessment of Cardiac Output Calculation by Thermodilution in Pigs for Effective Perfusion Flow During EVLP
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与侵袭性肺动脉导管相比,使用非侵袭性光电扫描装置评估心脏流量测量

Dean Nachman1, Arik Eisenkraft2, Eldad Rahamim3

  • 1Heart Institute, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel; Institute for Research in Military Medicine, Faculty of Medicine, The Hebrew University of Jerusalem and the Israel Defense Force Medical Corps, Petah Tikva, Israel.

JACC. Advances
|August 22, 2025
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概括

一种新的可穿戴光聚体图 (PPG) 装置与测量心脏输出和全身血管阻力的侵入性方法有很强的相关性. 这种非侵入性监测对传统风险较高的血液动力学监测技术提供了有希望的替代方案.

关键词:
-甘兹导管心脏流量测量血压性心力衰竭非侵入性监测摄影电流图远程监控患者

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Last Updated: Sep 10, 2025

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科学领域:

  • 心血管生理学
  • 医疗设备技术
  • 生物医学工程

背景情况:

  • 侵入性血液动力学监测是标准的,但存在重大风险.
  • 寻求非侵入性方法来提高患者的安全性和监测可访问性.

研究的目的:

  • 通过非侵入性可穿戴式光电显微镜 (PPG) 测量,与侵入性肺动脉导管测量进行比较.
  • 评估PPG对心脏输出 (CO) 和全身血管阻力 (SVR) 监测的准确性.

主要方法:

  • 包括接受右心导管治疗的心力衰竭患者.
  • 与侵入性测量 (肺动脉导管,间接Fick,热稀释) 同时采集PPG装置的读数.
  • 布兰德-阿尔特曼分析和皮尔森相关性评估了一致性和准确性.

主要成果:

  • PPG装置与CO (皮尔森r=0. 959) 和SVR (皮尔森r=0. 936) 的侵入性热稀释有很高的相关性.
  • 与热稀释 (-19.1/14.5%) 相比,CO的协议极限在±30%内.
  • 在各种患者的BMI和皮肤色调之间观察到准确的相关性.

结论:

  • 这种基于PPG的可穿戴设备与已知的侵入性血液动力学监测方法有很好的相关性.
  • 这种非侵入性技术为血液动力学评估提供了可行且潜在的更安全的替代方案.