0535: Percutaneous valvuloplasty versus surgical valvulotomy in neonates with critical aortic stenosis

This study was to compare outcomes and prognosis of newborns with critical aortic valve stenosis (AVS) who underwent either percutaneous or surgical intervention as first therapeutic option. Methods Neonates with diagnosis of critical AVS (defined as aortic flow dependent on ductus arteriosus patency) were included in the study, and divided in group I (percutaneous valvuloplasty) and group II (surgical valvulotomy). Results From 2000 to 2013, 23 cases (19 males) were analyzed: 9 in group I and 14 in II, aged 0 to 28 days at diagnosis ( 2.5 kg in 100% of group II and 78% of group I. Symptoms of heart failure were more frequent in group I. Echocardiography showed: LVSF grade2 in 11 cases (47.8%= 44% of group I and 50% of group II), Ross procedure performed in 5 cases (21.7%= 22.2% of group I and 21.4% of group II). Prognosis factors for reintervention were: aortic valve dysplasia, LV fibroelastosis and aortic annulus diameter Conclusion Results of percutaneous valvuloplasty compared to surgical valvulotomy in neonates with AVS showed higher rates of reintervention in the percutaneous group and more severe AR in the surgical group. Aortic annulus diameter