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Background: Balloon aortic valvulopasty (BAV) is an alternative therapy to surgery in newborns with critical aortic stenosis and has become the first-line treatment in many centers [1-2]. Concerns remain as to restenosis, aortic valve regurgitation and risks of re-intervention [3].Aims: The aim of the present study was to identify predictors of re-intervention (surgery or catheterization) after BAV of neonatal aortic stenosis.Methods: Monocentric, retrospective study. 36 neonates with congenital aortic valve stenosis, who underwent BAV, were included between 10-2003 and 11-2016. Patients were divided into 2 groups (group 1 : 15 days (n = 13)). Median follow-up reached 3 [1-9] years. Immediate success was defined as residual aortic valve gradient < 35mmHg and absence of significant aortic regurgitation.Results: Median age at intervention was 8 [1-45] days, median weight 3.4 [1.1-5.4] Kg. Median balloon/annulus ratio was 1 [0.8-1.2]. Post-procedure mortality was 13.9%. Procedure was successful in 24 patients (66.7%). Freedom from reintervention was 78% at 1 year and 62.5% at 5 years. Age < 15days, were significantly associated with reintervention (p=0.001 and p=0.013, respectively). The support by Alprostadil, presence of a significant residual aortic valve gradient > 35mmHg or significant aortic insufficiency (at the end of the catheterization), and the balloon/annulus ratio was not significantly associated with reintervention in multivariate statistics.Conclusion: BAV remains a valuable alternative to surgical valvotomy in neonatal aortic valve stenosis. Age of the patients and residual gradient were in our study, significantly associated with risk of reintervention.; Contexte : la valvuloplastie aortique endovasculaire est une alternative à la chirurgie pour la prise en charge des sténoses valvulaires aortiques critiques néonatales. Elle est devenue la prise en charge première dans de nombreux centres. La resténose, l’insuffisance aortique et le risque de ré-intervention demeurent important.Objectifs : le but de notre étude a été de rechercher les facteurs pronostiques de ré-intervention après une dilatation valvulaire aortique endovasculaire chez des enfants de moins de 45 jours de vie.Méthode : étude rétrospective monocentrique. Inclusion de 36 nouveau-nés porteurs d’une sténose valvulaire aortique congénitale, prise en charge par dilatation valvulaire aortique endovasculaire, entre 10-2003 et 11-2016. Les patients ont été divisés en 2 groupes (groupe A |
