Table 1: Patients’ Characteristics.

Birth weight, g2607 ± 321
Age at the time of diagnosis, months4.7 ± 0.5
Body weight at the time of GER diagnosis3667 ± 420
Types of congenital heart defects ( )
 Tetralogy of Fallot4 (1)
 Single ventricle2 (1)
 Atrioventricular septal defect2 (1)
 Coarctation of the aorta1
 Coarctation of the aorta with ventricular septal  defect1
 Transposition of the great arteries1
 Double outlet right ventricle2
 Ventricular septal defect1
 The Ebstein anomaly1
 Patent ductus arteriosus1
Other abnormalities ( )
 Trisomy 218 (2)
 Trisomy 181
 Asplenia syndrome2 (1)

Numbers in parentheses indicate postoperative patients.