title: Percutaneous balloon valvuloplasty for congenital critical pulmonary stenosis in neonates.
abstract: BACKGROUND
  Percutaneous balloon valvuloplasty (PBVP) was performed on 6 neonates with severe pulmonary stenosis to evaluate its efficacy.
  
  
  METHODS
  The 6 studied neonates were aged from 1 to 30 days and weighed 2.5 to 3.3 kg. Follow-up period ranged 6-21 months with a mean of 11.5 +/- 6.3 months.
  
  
  RESULTS
  Dramatic improvement after PBVP was obtained not only on the clinical manifestations but also on the hemodynamic data. After percutaneous balloon valvuloplasty, the aortic O2 saturation increased significantly from 71.3 +/- 14.8% to 83.2 +/- 9.3% (p = 0.001) in 5 neonates who had cyanosis before PBVP. The right to left ventricular peak systolic pressure ratio decreased significantly from 1.65 +/- 0.41 to 0.77 +/- 0.27 (p < 0.001). The peak systolic right ventricular pressure dropped significantly from 104.0 +/- 18.8 to 48.8 +/- 13.6 mmHg (p < 0.001). The peak systolic gradient between right ventricle and main pulmonary artery dropped significantly from 83.2 +/- 16.2 to 24.3 +/- 16.3 mmHg (p < 0.05).
  
  
  CONCLUSIONS
  The percutaneous balloon valvuloplasty is safe and effective in treating the neonates with congenital critical pulmonary stenosis.
authors.affiliation: Department of Pediatrics, Veterans General Hospital-Taipei, Taiwan, R.O.C.
authors.forename: B
authors.initials: B
authors.lastname: Hwang
authors.forename: J H
authors.initials: JH
authors.lastname: Lu
authors.forename: C C
authors.initials: CC
authors.lastname: Meng
mesh_terms: D002404:Catheterization; D003422:Critical Care; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011666:Pulmonary Valve Stenosis / Q000628:therapy*; D012189:Retrospective Studies