What is hemodynamics?

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ako6777 | Middle School Teacher | (Level 1) Associate Educator

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Hemodynamics is the study of the forces involved in the circulation of blood throughout the body, including cardiac function and peripheral vascular physiology.

Hemodynamics can be monitored with noninvasive and invasive methods. One noninvasive method or technique is the use of a blood pressure cuff.  This encircles the arm and measures internal blood pressure.  This is noninvasive because it does not require any surgical procedure to utilized.

An example of an invasive method is the use of a Swan-Ganz Catheter.  This method requires a catheter to be introduced into the body through a large vein. It is than threaded through the heart and into the pulmonary artery. This method provides a measure of central venous pressure.

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dano7744 | College Teacher | (Level 2) Educator

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Hemodynamics is the study of the blood in the cardiovascular system(heart and blood vessels). More importantly, the pressures created by the blood on arterial walls, this is blood pressure. If someone had a very low or very high blood pressure, it could be said that they are hemodynamically unstable. Further, the heart has pressure associated with it in the chambers, atria and ventricles. These pressures can be measured if or when needed by inserting hemodynamic catheters that register and record the pressures on a computer. Measuring these pressures are common place in critically ill patients.

Many things can affect these hemodynamic pressures like different disease processes.

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besure77 | Middle School Teacher | (Level 1) Senior Educator

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Hemodynamics is the study of blood flow and an important part of cardiovascular physiology. In other words, hemodynamics concentrates on the circulation of blood throughout the entire body. It deals directly with the forces that pump the blood (the heart), and the circulation of the blood (blood flow) which delivers oxygen to all parts of the body. It is also directly concerned with blood pressure.

Hypertension and congestive heart failure are two disorders that are directly related to hemodynamics.

Please reference the link below. It contains a lot specific information relating to hemodynamics.