VSD VSD
Present (n=20) Absent (n=28) p
Urgent ballon atrial septostomy
Yes (n=18) 4 (20%) 14 (50%) .03
No (n=30) 16 (80%) 14 (50%)
Non-urgent ballon atrial septostomy
Yes (n=5) 5 (25%) 0 .005
No (n=43) 15 (75%) 28 (100%)
Patients with urgent and non-urgent BAS
Yes (n=23) 9 (45%) 14 (50%) .732
No (n=25) 11 (55%) 14 (50%)