Assessment of Right Ventricular Function & Volumes using Three-Dimensional Echocardiography before & after Percutaneous Balloon Pulmonary Valvuloplasty

Abstract

SUMMARY O ur study included 50 cases with valvular pulmonary stenosis who were referred for elective percutaneous balloon pulmonary valvuloplasty in Ain Shams University hospitals between December 2016 & August 2017. All patients were subjected to 2D & 3D echocardiography before & 3months after BPV. The patients included 20 males (40%) & 30 females (60%) with a mean age of 2.7 years & a mean body surface area of 0.5 sqm. Peak pressure gradient(PPG) across PV, RV free wall thickness, basal RV dimension & the mid RV dimensions significantly decreased after BPV, while longitudinal RV dimension significantly increased. FAC, TAPSE & RV function measured by 3D echocardiography significantly increased after BPV. End diastolic& end systolic RV volumes measured by 2D& 3D echocardiography showed a slight increased without a significant P value. When we compared 2D measurements with 3D measurements we found that before & after BPV, EDV measured by 2D echocardiography was lower than EDV measured by 3D echocardiography. We also found that before BPV, ESV measured by 2D echocardiography was lower than ESV measured by 3D echocardiography while after BPV ESV