EFFECTIVENESS OF BALLOON VALVULOPLASTY IN CHILDREN WITH ISOLATED VALVULAR PULMONARY ARTERY STENOSIS WITH THE HELP OF ECHOCARDIOGRAPHIC METHODS

In the article a possibility of non-invasive quantitative assessment of right ventricle (RV) function in children with isolated pulmonary stenosis (PS) is highlighted. Due to the new complex, echocardiographic method including using of some parameters and formulas for calculation of RV ejection fraction (RVEF) and velocity indicators of tissue Doppler Imaging (TDI), systolic and diastolic RV function has been estimated before and after balloon pulmonary valvuloplasty (BPV). During mid-term follow-up after BPV (mean term – 6 months) it was proved that systolic and diastolic RV function, which is broken in children with PS before procedure compared to the control group, is significantly improved. Our complex echocardiographic quantitative method could be used for noninvasive RV function evaluation before and after procedures in pediatric surgery.