Table 2

Patient characteristics and ASO

All patients (n=25)
Male19 (76)
Anatomical diagnosis
 TGA–IVS19 (76)
 TGA with VSD6 (24)
Perinatal asphyxia*4 (17)
PPHN*3 (13)
Atrial balloon septostomy21 (84)
Age atrial balloon septostomy (days)1 (1, 1)
Age ASO (days)8 (6, 10)
PH crisis peri-ASO2 (8)
Successful ASO25 (100)
Haemodynamically relevant residual lesions0
Other causes for PAH0
  • Data presented as number (percentage) or median (IQR).

  • *Missing in one child.

  • ASO, arterial switch operation; IVS, intact ventricular septum; PAH, pulmonary arterial hypertension; PPHN, persistent pulmonary hypertension of the newborn; TGA, transposition of the great arteries; VSD, ventricular septum defect.