Key result
Doppler echocardiography was inaccurate (defined as >10 mm Hg difference from invasive measurement) in 48% of cases when estimating pulmonary artery systolic pressure compared to right-heart catheterization.
Why the study?
Does Doppler echocardiography accurately estimate pulmonary artery pressure and cardiac output compared to right-heart catheterization in patients with pulmonary hypertension?
Observational (n=65)
Single-blind
No
Does Doppler echocardiography accurately estimate pulmonary artery pressure and cardiac output compared to right-heart catheterization in patients with pulmonary hypertension?
Doppler echocardiography frequently provides inaccurate estimates of pulmonary artery pressure and cardiac output compared to invasive right-heart catheterization in patients with pulmonary hypertension.
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Fisher et al. (2009) conducted an observational in Pulmonary Hypertension (n=65). Doppler echocardiography vs. Right-heart catheterization was evaluated on Accuracy of Doppler echocardiography for estimating pulmonary artery systolic pressure. Doppler echocardiography was inaccurate (defined as >10 mm Hg difference from invasive measurement) in 48% of cases when estimating pulmonary artery systolic pressure compared to right-heart catheterization.
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