Based on Feigenbaum's textbook on echocardiography, the assessment of right ventricular (RV) pressure using echocardiography can be classified as follows:
Normal RV pressure: A normal RV systolic pressure is less than or equal to 30 mmHg.
Mildly elevated RV pressure: A mildly elevated RV systolic pressure is between 30 and 40 mmHg.
Moderately elevated RV pressure: A moderately elevated RV systolic pressure is between 40 and 70 mmHg.
Severely elevated RV pressure: A severely elevated RV systolic pressure is greater than 70 mmHg.
It is important to note that the assessment of RV pressure using echocardiography is based on the estimation of the tricuspid regurgitation (TR) jet velocity, which is then used to calculate the RV systolic pressure using the modified Bernoulli equation. However, the estimation of RV pressure using echocardiography is not always accurate and may be influenced by several factors, including technical limitations and underlying pulmonary and cardiac diseases. Therefore, the echocardiographic assessment of RV pressure should be interpreted in the context of the clinical history and physical examination findings.
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