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New insights into exercise right ventricular pressure may help define a new 'normal'

10:00 EDT 21 Jun 2017 | Medical Xpress

In individuals with structurally normal hearts, systolic pressure is assumed to be equal in the lung arteries and the part of the heart pumping to them. A difference in pressure between the right ventricle (RV) and pulmonary artery (PA) suggests an obstruction to blood flow (specifically in the right ventricular outflow tract, or RVOT), which is most often seen in patients who have congenital heart defects or sometimes after cardiac surgery or lung transplantation. An RVOT pressure gradient is usually seen as a sign for concern: if the obstruction to the blood flow is severe, it can lead to right heart failure.

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