title: [Study of the effects of the implementation of a human milk donor bank in preterm newborns in Aragon].
abstract: BACKGROUND
  Numerous obstacles may prevent a premature or sick neonate receiving their mother's milk. In these cases, pediatric scientific societies recommend feeding with donor human milk. In this article, it is explained what a milk bank is, how it works, the donors' selection method, and the benefits. We also describe the current situation in Aragon (Spain) is also described.
  
  
  METHODS
  A retrospective and descriptive study was conducted on the perinatal sample characteristics, as well as an analytical observational study, comparing two sample groups: pre- and post-human milk bank. Finally, differences in the post-bank stage between those patients fed with own-mother's or donor human milk were determined.
  
  
  RESULTS
  The study included a total of 234 patients: 104 females and 130 males. Two groups: pre and post-bank, with 152 and 82 patients, respectively, which had similar characteristics at birth; length and head circumference were significantly higher in the post-bank group and a lower rate of necrotizing enterocolitis was also found. No statistically significant differences were found in other variables between subgroups fed with own-mother's milk and donor human milk.
  
  
  CONCLUSIONS
  The establishment of the human milk donor bank has a beneficial effect, as it reduces neonatal morbidity in cases of necrotizing enterocolitis. Human milk feeding could be a protective factor against neonatal sepsis due to improve immunity.
  
  
  CONCLUSIONS
  The incidence of necrotizing enterocolitis is lower after the establishment of the milk bank. Studies with more patients may demonstrate differences in other variables.
authors.affiliation: Enfermero, Hospital Miguel Servet, Zaragoza, España. Electronic address: israellarena@hotmail.com.
authors.forename: Israel
authors.initials: I
authors.lastname: Larena Fernández
authors.affiliation: Pediatra, Hospital Barbastro, Barbastro, Huesca, España.
authors.forename: Marta
authors.initials: M
authors.lastname: Vara Callau
authors.affiliation: Pediatra, Hospital Miguel Servet, Zaragoza, España.
authors.forename: Delia
authors.initials: D
authors.lastname: Royo Pérez
authors.affiliation: Enfermero, especialista en salud mental, Hospital San Jorge, Huesca, España.
authors.forename: Ricardo
authors.initials: R
authors.lastname: López Bernués
authors.affiliation: Enfermero, Hospital Royo Villanova, Zaragoza, España.
authors.forename: Jesús
authors.initials: J
authors.lastname: Cortés Sierra
authors.affiliation: Pediatra, Hospital Clínico Lozano Blesa, Zaragoza, España.
authors.forename: María Pilar
authors.initials: MP
authors.lastname: Samper Villagrasa
mesh_terms: D020345:Enterocolitis, Necrotizing / Q000453:epidemiology / Q000517:prevention & control*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D008297:Male; D017784:Milk Banks / Q000458:organization & administration*; D008895:Milk, Human; D012189:Retrospective Studies; D013030:Spain
keywords: Banco de leche; Crecimiento; Donor human milk; Enterocolitis necrosante; Growth; Human donor milk bank; Leche materna donada; Necrotizing enterocolitis; Prematuro; Preterm