Medium-Term Results of Balloon Valvuloplasty of Native Pulmonary Valve Stenosis with and without Supravalvular Obstruction in Childhood

Objectives: Factors influencing results of balloon valvuloplasty (BVP) pulmonary valve stenosis (PS) in children are investigated. Background: BVP has become the standard care for PS, medium-term not uniform and depend on various preconditions. Methods: We analysed PS an observational, single centre study. Need additional procedure was defined as outcome after initial BVP. Results: included 143 (83 female) at a median (IQR) age 2.6 (0.26–9.24) months body weight 5 (3.4–8) kg with follow–up 5.04 (1.6–10.2) years. used size 10 (9–14) mm maximal pressure 4 (3.5–10) atm, resulting balloon–to–pulmonary annulus ratio 1.28 (1.2–1.4). Systolic gradient reduced (43.5 mmHg vs. 14.0 mmHg, p < 0.001) confirmed by echocardiography (68.0 25.0 day 1 post procedure. Pulmonary associated supravalvular resulted relevant reduction systolic 23 31 patients (74.2%). Early necessary 14 (9.8%) 0.2 (0.1–0.7) years due to residual (n = 13) infective endocarditis 1). procedures were higher gradient, but genetic syndrome. During further no needed. Conclusions: native leads excellent results, even 3 infants obstruction sufficient relief can be obtained.