Which findings on a two-dimensional echocardiography suggest pulmonary arterial hypertension (PAH)?

Updated: Apr 25, 2018
  • Author: Kristin E Schwab, MD; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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Answer

Echocardiography is generally used to screen patients for pulmonary hypertension. It is also used to rule out left ventricular and valvular dysfunction.

On two-dimensional echocardiography, signs of chronic right ventricular pressure overload are present, including increased thickness of the right ventricle and paradoxical bulging of the septum into the left ventricle during systole. In later stages, right ventricular dilatation occurs, leading to right ventricular hypokinesis. Right atrial dilatation, septal flattening, tricuspid regurgitation, pulmonic insufficiency, and midsystolic closure of the pulmonic valve may develop.


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