title: [Non-surgical treatment of aortic coarctation and recoarctation].
abstract: OBJECTIVE
  To analyze the results of nonsurgical treatment of aortic coarctation and recoarctation by evaluating the results of each technique, and its complications and outcome.
  
  
  METHODS
  The results were as follows: 51 children underwent balloon dilatation due to recoarctation (86.5 %); two underwent dilation of a native coarctation (3.3 %) and six underwent stent implantation for recoarctation (10 %). Age ranged from 2 to 236 months (109 +/- 63.45 months) with a follow-up of between 1 and 156 months (38.87 +/-32.96 months).
  
  
  RESULTS
  The mean predilatation gradient in children with recoarctation was 34 +/- 11.62 mmHg, which decreased to 11 +/- 5.38 mm Hg (p < 0.0001). In 12 patients (20.3 %) effective dilatation was not achieved. The size of the stenosis was 6.7 +/- 2.35 mm predilatation, which increased to 9.3 +/- 3.10 mm (p < 0.0001) after dilatation with a percentage increase of 50.97. There were very few complications. Six children required subsequent redilatation. The experience with stent showed a mean gradient of 32.83 +/- 10.62 mm Hg, which decreased to 7.3 +/- 3.8 mm Hg (p < 0.0001) with a balloon/stenosis ratio of 1.94.
  
  
  CONCLUSIONS
  We conclude that the interventionist technique is highly effective in both native coarctation and recoarctation in the short term, as well as subsequently, with very few complications. The stent technique produces equally good results in older children, which is promising for the future.
authors.affiliation: Servicio de Cardiología Pediátrica, Hospital Ramón y Cajal, 28400 Madrid, Spain.
authors.forename: J
authors.initials: J
authors.lastname: Villalba Nogales
authors.forename: L
authors.initials: L
authors.lastname: Fernández-Pineda
authors.forename: J I
authors.initials: JI
authors.lastname: Herráiz Sarachaga
authors.forename: R
authors.initials: R
authors.lastname: Bermúdez-Cañete Fernández
authors.forename: M J
authors.initials: MJ
authors.lastname: Maitre Azcárate
authors.forename: M
authors.initials: M
authors.lastname: Quero Jiménez
mesh_terms: D000293:Adolescent; D001017:Aortic Coarctation / Q000628:therapy*; D002404:Catheterization; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D012008:Recurrence; D015607:Stents; D016896:Treatment Outcome