LIMITATIONS Heterogeneity of organisms and dosing regimens studied prevent a species-specific treatment recommendation from being made .
CONCLUSIONS Preterm infants benefit from probiotics to prevent severe NEC and death
CONTEXT Necrotizing enterocolitis ( NEC ) is the most frequent gastrointestinal emergency in neonates .
The microbiome of the preterm gut may regulate the integrity of the intestinal mucosa .
Probiotics may positively contribute to mucosal integrity , potentially reducing the risk of NEC in neonates .
OBJECTIVE To perform an up date d systematic review and meta- analysis on the efficacy and safety of probiotics for the prevention of NEC in premature infants .
Prophylactic Probiotics to Prevent Death and Nosocomial Infection in Preterm Infants
BACKGROUND AND OBJECTIVE : It has been suggested that probiotics may decrease  infant mortality and nosocomial infections because of their ability to suppress colonization and translocation of bacterial pathogens in the gastrointestinal tract . We design ed a large double-blinded placebo-controlled trial using Lactobacillus reuteri to test this hypothesis in preterm infants . METHODS : Eligible infants were r and omly assigned during the first 48 hours of life to either daily probiotic administration or placebo .  Infants in the intervention group were administered enterally 5 drops of a probiotic preparation containing 108 colony-forming units of L reuteri DSM 17938 until death or discharge from the NICU . RESULTS : A total of 750 infants ≤2000 g were enrolled . The frequency of the primary outcome , death , or nosocomial infection , was similar in the probiotic and placebo groups ( relative risk 0.87 ; 95 % confidence interval : 0.63–1.19 ; P = .376 ) . There was a trend toward a lower rate of nosocomial pneumonia in the probiotic group ( 2.4 % vs 5.0 % ; P = .06 ) and a nonsignificant 40 % decrease in necrotizing enterocolitis ( 2.4 % vs 4.0 % ; P = .23 ) . Episodes of feeding intolerance and duration of hospitalization were lower in infants ≤ 1500 g ( 9.6 % vs 16.8 % [ P = .04 ] ; 32.5 days vs 37 days [ P = .03 ] ) . CONCLUSIONS : Although L reuteri did not appear to decrease the rate of the composite outcome , the trends suggest a protective role consistent with what has been observed in the literature . Feeding intolerance and duration of hospitalization were decreased in premature infants ≤1500
LIMITATIONS Heterogeneity of organisms and dosing regimens studied prevent a species-specific treatment recommendation from being made .
CONCLUSIONS Preterm infants benefit from probiotics to prevent severe NEC and death
CONTEXT Necrotizing enterocolitis ( NEC ) is the most frequent gastrointestinal emergency in neonates .
The microbiome of the preterm gut may regulate the integrity of the intestinal mucosa .
Probiotics may positively contribute to mucosal integrity , potentially reducing the risk of NEC in neonates .
OBJECTIVE To perform an up date d systematic review and meta- analysis on the efficacy and safety of probiotics for the prevention of NEC in premature infants .