HM provided a clear protective effect against NEC , with an approximate 4 % reduction in incidence .
HM also provided a possible reduction in LOS , severe ROP and severe NEC .
Particularly for NEC , any volume of HM is better than EPTF , and the higher the dose the greater the protection .
Evidence regarding pasteurisation is inconclusive , but it appears to have no effect on some outcomes .
Improving the intake of mother ’s own milk ( MOM ) and /or donor HM results in small improvements in morbidity in this population
Randomized trial of exclusive human milk versus preterm formula diets in extremely premature infants.
OBJECTIVE To compare the duration of parenteral nutrition , growth , and morbidity in extremely premature infants fed exclusive diets of either bovine milk-based preterm formula ( BOV ) or donor human milk and human milk-based human milk fortifier ( HUM )  , in a r and omized trial of formula vs human milk . STUDY DESIGN Multicenter r and omized controlled trial . The authors studied extremely preterm infants whose mothers did not provide their milk . Infants were fed either BOV or an exclusive human milk diet of pasteurized donor human milk and HUM . The major outcome was duration of parenteral nutrition . Secondary outcomes were growth , respiratory support , and necrotizing enterocolitis ( NEC ) . RESULTS Birth weight ( 983 vs 996 g ) and  gestational age ( 27.5 vs 27.7 wk ) , in BOV and HUM , respectively , were similar . There was a significant difference in median parenteral nutrition days : 36 vs 27 , in BOV vs HUM , respectively ( P = .04 ) . The incidence of NEC in BOV was 21 % ( 5 cases ) vs 3 % in HUM ( 1 case ) , P = .08 ; surgical NEC was significantly higher in BOV ( 4 cases ) than HUM ( 0 cases ) , P = .04 . CONCLUSIONS In extremely preterm infants given exclusive diets of preterm formula vs human milk , there was a significantly greater duration of parenteral nutrition and higher rate of surgical NEC in infants receiving preterm formula . This trial supports the use of an exclusive human milk diet to nourish extremely preterm infants in the neonatal intensive care unit
HM provided a clear protective effect against NEC , with an approximate 4 % reduction in incidence .
HM also provided a possible reduction in LOS , severe ROP and severe NEC .
Particularly for NEC , any volume of HM is better than EPTF , and the higher the dose the greater the protection .
Evidence regarding pasteurisation is inconclusive , but it appears to have no effect on some outcomes .
Improving the intake of mother ’s own milk ( MOM ) and /or donor HM results in small improvements in morbidity in this population