title: Results of balloon valvuloplasty in the treatment of congenital valvar pulmonary stenosis in children.
abstract: Transluminal balloon valvuloplasty was used in the treatment of congenital valvar pulmonary stenosis in 19 children, aged 5 months to 18 years. The right ventricular (RV) systolic pressure and RV outflow tract gradient decreased significantly immediately after the procedure (95 +/- 29 vs 59 +/- 14 mm Hg, p less than 0.01, and 78 +/- 27 vs 38 +/- 13 mm Hg, p less than 0.01). Seven of these patients were evaluated at cardiac catheterization 1 year after balloon valvuloplasty. No significant change occurred in RV systolic pressure or RV outflow tract gradient at follow-up evaluation compared with measurements immediately after balloon valvuloplasty (60 +/- 5 mm Hg vs 56 +/- 12 mm Hg and 39 +/- 5 vs 38 +/- 10 mm Hg). In addition, follow-up evaluation was performed using noninvasive methods and included electrocardiography (n = 13), vectorcardiography (n = 11) and Doppler echocardiography (n = 11) Doppler echocardiography in 11 patients 15 +/- 9 months after balloon valvuloplasty showed a continued beneficial effect with a mild further decrease in RV outflow tract gradient. Thus, balloon valvuloplasty is effective in the relief of pulmonary stenosis.
authors.forename: D A
authors.initials: DA
authors.lastname: Kveselis
authors.forename: A P
authors.initials: AP
authors.lastname: Rocchini
authors.forename: A R
authors.initials: AR
authors.lastname: Snider
authors.forename: A
authors.initials: A
authors.lastname: Rosenthal
authors.forename: D C
authors.initials: DC
authors.lastname: Crowley
authors.forename: M
authors.initials: M
authors.lastname: Dick
mesh_terms: D000293:Adolescent; D000800:Angioplasty, Balloon; D002648:Child; D002675:Child, Preschool; D004452:Echocardiography; D006439:Hemodynamics; D006801:Humans; D007223:Infant; D011666:Pulmonary Valve Stenosis / Q000151:congenital / Q000628:therapy*; D013599:Systole; D014672:Vectorcardiography