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Right Heart Function and Pulmonary Artery Pressure 

Right Heart Function and Pulmonary Artery Pressure
Chapter:
Right Heart Function and Pulmonary Artery Pressure
Author(s):

Patrizio Lancellotti

and Bernard Cosyns

DOI:
10.1093/med/9780198713623.003.0009
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date: 05 August 2020

The function of the RV is to generate pressure to facilitate blood flow against the resistive forces of the pulmonary vasculature. RV function is particularly influenced by loading conditions. There are many causes of RV dysfunction and this chapter describes them. Most RV pathologies involve a degree of both pressure and volume overload. This chapter also examines the aetiology of RV volume overload along with specific echocardiographic findings. It explains the aetiology of RV pressure overload and how to measure RV pressures using the Bernoulli equation and alternative measures. Echocardiographic findings in relation to acute pulmonary embolism and exercise testing for pulmonary hypertension are also described in detail.

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