“…For the ELBW infants, breast milk use steadily increased from 20% in 2005 to 90% in 2012 and through a quality improvement project reached 100% from 2014 to 2016. 21 Inclusion criteria were (1) ELBW and VLBW infants born in our hospital during the study period with birth weight of <1500 g and gestational age of 23–30 weeks, and (2) infants requiring treatment with oral CC for AOP. Exclusion criteria were (1) infants born with major congenital anomalies, (2) infants concurrently receiving other medicines that could influence weight gain such as diuretics, ibuprofen, indomethacin, or postnatal corticosteroids, (3) infants transferred in/out of the unit from/to other neonatal centers, (4) infants with blood culture-proven sepsis during the course of oral caffeine treatment, (5) grade 3/4 intraventricular hemorrhage (IVH), (6) infants on fluid restriction, (7) infants who have received middle of the dosage range of 7–8 mg/(kg·day) of CC from the treating team, (8) infants with necrotizing enterocolitis (NEC) with modified Bell's stage 2b and above, 25 and (9) infants while receiving intravenous caffeine.…”