Group 1 (n = 13) Group 1 (n = 13) Group 2 (n = 14)
p Value
Sex (male/female) 5/8 4/10 4/10 0.586
Gestational age (week) 25.0±1.87 26.7±1.93 26.7±1.93 0.028*
Mean birth weight (g) 809±167 1229±491 1229±491 0.007*
Mean age at surgery (days) 23±12 36±20 36±20 0.079
Mean weight at surgery (g) 822±169 1528±573 1528±573 0.000*
Mean PDA size (mm) 2.64±0.61 3.04±0.79 3.04±0.79 0.162
Preoperative condition
NEC 2 1 1 0.496
CHF 13 14 14 1.000
ARF 6 3 3 0.173
RDS 12 12 12 0.586
ROP 2 3 3 0.686
Sepsis 4 4 4 0.901
Hydrops fetalis 0 1 1 0.326
Genetic syndrome 1 0 0 0.290
Post‐resuscitation 0 0 0 1.000
Failed percutaneous closure 0 0 0 1.000
Hydrocephalus + tracheostomy 0 1 1 0.326
Bronchopneumonia 2 3 3 686
Preoperative MV support 13 12 12 0.157