Deep Dive: Cardiovascular Physiology-Hemodynamic Assessment: Invasive Hemodynamic Monitoring

Hemodynamic Assessment: Invasive Hemodynamic Monitoring

Video Transcription

Video Summary

The video provides an overview of invasive hemodynamic monitoring. The speaker explains that hemodynamic monitoring involves measuring venous and systemic blood pressure, blood volume, blood flow, metabolism, and oxygen transport. Non-invasive techniques, such as blood pressure cuffs and echocardiography, are discussed but are deemed inadequate for critically ill patients. The speaker emphasizes the importance of accurate and reliable data when using invasive monitoring. Several common problems in the measurement process are addressed, including calibration errors, damping and resonance effects, and misinterpretation of pressure waveforms. The speaker also discusses the measurement of flow using indicator dilution and the Fick principle. Lastly, it is mentioned that volume status assessment is less developed and that unexpected or discordant results can be due to technical issues, incorrect diagnosis, or failure to understand the physiological basis of the measurements.

Asset Caption

Clifford Greyson, MD

Keywords

invasive hemodynamic monitoring

blood pressure

blood flow

oxygen transport

calibration errors

volume status assessment

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