Variable n
Age (year) 5yr ± 4 (3 to 17yr)
Age category  
Less than one year 25(21%)
One to five year 52(45%)
five to 18 year 40(34%)
Gender (M:F) 1.3:1.0
Mean BSA(cm2) 0.6
Weight (Kg) 15.5 ± 10.93(3.1 to 60)
Weight category  
Less than 5 kg      14(12%)
6 to 10 kg 21(18%)
11 to 20 kg 55(47%)
More than 21kg 13(11%)
Genetic syndrome 15/117(13%)
Down’s syndrome 10/117(8.5%)
Qp:Qs ratio 2.3 ± 1.3(1.0 to 7.0)
Pulmonary vascular resistance index (Woods unit/m2) 3.4 ± 2.6 (0.5 to 11.3)
PA band before surgery 19/112(17%)
Stay in ICU/SICU (days) 4 ± 4 (1 to 24)
Duration of intubation (Hours) 20 ± 34 (1 to 211)
Table 1: Clinical characteristics of the patients in this study.