Single-Center Comparison of Outcomes Following Cardiac Surgery in Low Birth Weight and Standard Birth Weight Neonates

Objective To compare outcomes between low birth weight (LBW; Study design A single-center retrospective study of neonates undergoing cardiac surgery with cardiopulmonary bypass from 2012 to 2018. LBW neonates were 1:2 propensity score–matched to standard birth weight neonates (n = 93 to n = 186) using clinical characteristics. The primary and secondary outcomes were survival to hospital discharge and postoperative complications, respectively. After matching, regression analyses were conducted to compare outcomes. Results The LBW group had a higher proportion of premature neonates than the standard birth weight group (60% vs 8%; P  2 kg. Conclusions LBW is a risk factor for decreased survival. LBW neonates weighing >2 kg have survival comparable to those weighing >2.5 kg.