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Published on: December 5, 2017
Therapeutic control of the circulation
William Geoffrey Parkin1, Mark Stephen Leaning
1Applied Physiology Pty Ltd, Sydney, Australia. geoffrey.parkin@applied-physiology.com
This study presents a new approach to managing circulation by focusing on venous return. It enables continuous therapeutic control of blood pressure, cardiac output, and tissue oxygen flow using standard measurements.
Area of Science:
- Physiology
- Hemodynamics
- Medical Engineering
Background:
- Understanding circulatory dynamics is crucial for effective patient management.
- Current methods for circulatory control can be complex and lack a unified framework.
- Venous return is a key determinant of cardiac output and overall circulation.
Purpose of the Study:
- To propose a novel perspective on circulatory control by emphasizing venous return.
- To demonstrate how conventionally measured variables can be used for therapeutic guidance.
- To provide a framework for graphical solutions in circulation management.
Main Methods:
- Formulating a series of equations based on the concept of venous return.
- Utilizing conventionally measured physiological variables.
- Developing a graphical method for circulation guidance and therapy.
Main Results:
- Continuous therapeutic control of mean arterial blood pressure, cardiac output, and tissue oxygen flow is achievable.
- The proposed approach offers a graphical solution for circulation management.
- The framework supports both open and closed-loop control strategies.
Conclusions:
- Viewing circulation through the lens of venous return simplifies therapeutic control.
- This method allows for goal-directed therapy with broad applicability.
- The graphical solution facilitates practical application in clinical settings.
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