title: Long-term results of balloon aortic valvulotomy for congenital aortic stenosis in children and adolescents.
abstract: OBJECTIVE
  The aim of the study was to report on the long-term results of aortic valve balloon dilatation (AVBD) for congenital valvular aortic stenosis in children and young adults.
  
  
  METHODS
  The records of 74 patients (age range: 1-20 years) who underwent AVBD at a single center were analyzed retrospectively. Special attention was paid to factors that might influence long-term outcome.
  
  
  RESULTS
  The procedure was successful in 71 patients (96%). The mean (+/- SD) reduction in peak-to-peak systolic gradient (PSG) was 68.7 +/- 13.5%. No patient required immediate surgical intervention. Survival after dilatation was 100% at 12 years. At follow up (mean 5.5 +/- 2.9 years; range: 2-12 years), 20% of patients had restenosis and 21% had significant aortic regurgitation (AR) (grade > or = 3). Reintervention was performed in 14% of patients. Severity of AR and high residual stenosis immediately after AVBD were associated with the late event rates. The actuarial intervention-free rates at five, seven and 12 years were 92.9%, 84.4% and 60%, respectively.
  
  
  CONCLUSIONS
  AVBD is a useful, albeit palliative, procedure for children and young adults with significant congenital valvular aortic stenosis.
authors.affiliation: Department of Cardiology, Cardiothoracic Centre, All India Institute of Medical Sciences, New Delhi.
authors.forename: R C
authors.initials: RC
authors.lastname: Jindal
authors.forename: A
authors.initials: A
authors.lastname: Saxena
authors.forename: R
authors.initials: R
authors.lastname: Juneja
authors.forename: S S
authors.initials: SS
authors.lastname: Kothari
authors.forename: S
authors.initials: S
authors.lastname: Shrivastava
mesh_terms: D000293:Adolescent; D000328:Adult; D001024:Aortic Valve Stenosis / Q000151:congenital* / Q000628:therapy*; D002404:Catheterization / Q000401:mortality; D002648:Child; D002675:Child, Preschool; D004452:Echocardiography; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D012008:Recurrence; D012189:Retrospective Studies; D016896:Treatment Outcome