Table 1

Demographic and haemodynamic data

PatientAge (years)DiagnosisPrevious operationsLevel of obstructionInterval (months)1-151Balloons1-152Gradient (mm Hg)RV:FADoppler
115AoV stenosisValvotomy; re-valvotomy; Ross procedure (pulmonary autograft + 21 mm valved homograft RV-PA conduit; replacement AoVProximal conduit2415 mm +
12 mm
28Dextrocardia, cTGA, VSD, PAR A-P shunt;16 mm Hancock conduit + VSD closureProximal conduit and valve7212 mm +
10 mm
310PA/VSDR A-P shunt; 18 mm homograft conduit + VSD closureProximal conduit and LPA origin4015 mm +
10 mm
44Common arterial trunkPA banding;12 mm homograft conduit + VSD closureMultiple248 mm +
8 mm
51-150 17TAR and L A-P shunts; Fontan procedure; insertion of two 22 mm valved homograft conduits from IVC to RA and from RA to PTMultiple/multiple1-150 12715 mm +
15 mm
3/71-150 0/21-150
  • 1-150 Refers separately to the two shunts. Gradients are between IVC and RA and RA and PT, respectively.

  • 1-151 Time from conduit placement to balloon angioplasty.

  • 1-152 Balloon diameters correspond to the largest combination of balloons used in dilating each conduit.

  • AoV, aortic valve; A-P, aorto-pulmonary shunt; cTGA, congenitally corrected transposition; FU, Doppler gradient at last follow up examination; IVC, inferior vena cava; L, left; LPA, left pulmonary artery; PA, pulmonary atresia; PT, pulmonary trunk; R, right; RA, right atrium; RV:FA, right ventricle to femoral artery systolic pressure ratio; TA, tricuspid atresia; VSD, ventricular septal defect.