Pulmonary Vascular Resistance Calculator

Calculate PVR





Formula

The formula to calculate the Pulmonary Vascular Resistance (PVR) is:

\[ \text{PVR} = \frac{\text{MPAP} - \text{PCWP}}{\text{CO}} \times 80 \]

Where:

What is Pulmonary Vascular Resistance?

Pulmonary Vascular Resistance (PVR) is a measure of the resistance or opposition to blood flow that the lungs provide in the circulatory system. It is an important factor in understanding how effectively the heart is pumping blood through the lungs. High PVR, often caused by diseases such as pulmonary hypertension, can put strain on the right side of the heart and lead to heart failure. It is typically measured in units of dyn·s/cm5 or Wood units.

Example Calculation

Let's consider an example:

Using the formula to calculate the Pulmonary Vascular Resistance:

\[ \text{PVR} = \frac{25 - 10}{5} \times 80 = 240 \text{ dyn·s/cm5} \]

This means that the Pulmonary Vascular Resistance (PVR) is 240 dyn·s/cm5.