H Ranjbarnejad Esfahani ,
Volume 56, Issue 3 (1 1998)
Abstract
Pulmonary artery pressure can be estimated from right ventricular-right atrial pressure gradient in patients with tricuspid regurgitation. The most common approach is to estimate pulmonary artery systolic pressure from right ventricular pressure (assuming no pulmonic stenosis) determined as the sum of the right ventricular-right atrial pressure gradient and either an assumed or clinically determined right atrial pressure. But in this study, that was done on 62 patients in 1996 in Imam Khomeini hospital, we demonstrated that it was not needed to add an assumed right atrial pressure to right ventricular-right atrial pressure gradient. We also demonstrated that pulmonary artery pressure estimated in this study, bears a direct relationship to systolic pulmonary artery pressure derived in right heart catheterization (r=0.98, standard error of estimulation)
