Table 1

Demographic and Diagnostic Data at Time of First BAVP for Congenital AS, 1984 to 2009 (n = 528)

VariableValue
Age
 Median (range)1.9 yrs (1 day to 40.4 yrs)
 Group
  <1 month128 (24%)
  1–12 months121 (23%)
  1–10 yrs147 (28%)
  ≥11 yrs132 (25%)
Associated congenital cardiovascular anomalies*
 None334 (63%)
 Coarctation/IAA95 (18%)
 Mitral stenosis55 (10%)
 Multiple left-heart obstructions38 (8%)
 Ventricular septal defect43 (8%)
 Other§3 (1%)
 Pulmonary hypertension37 (7%)
Prior interventions
 None384 (73%)
 Prior intervention for AS75 (14%)
 Surgical valvotomy57 (11%)
 Balloon dilation21 (4%)
 Coarctation/IAA repair71 (13%)
 Ventricular septal defect closure22 (4%)
 Subaortic stenosis procedure20 (4%)

AS = aortic stenosis; BAVP = balloon aortic valvuloplasty; IAA = interrupted aortic arch.

  • * Some had more than 1 associated congenital cardiovascular anomaly.

  • Defined as mean transmitral Doppler gradient ≥4 mm Hg.

  • AS plus at least 2 of the following: coarctation of the aorta, mitral stenosis, and subaortic stenosis.

  • § One case each of transposition of the great arteries, tetralogy of Fallot, and sinus venous atrial septal defect with partially anomalous pulmonary venous return.

  • Defined as mean pulmonary artery pressure at catheterization ≥30 mm Hg, past 30 days of age.