Research Article

Administration of Bifidobacterium breve PS12929 and Lactobacillus salivarius PS12934, Two Strains Isolated from Human Milk, to Very Low and Extremely Low Birth Weight Preterm Infants: A Pilot Study

Table 1

Epidemiological and clinical relevant data from the mother-infant pairs of this study.

Mothers123

Age (years)301828
FeverNoYesNo
Leukocytosis (>15,000 leukocytes/µL)NoYesYes
C-reactive protein (mg/L)267.640
Antenatal antibiotics treatment YesYesYes
Antenatal corticosteroids treatment CompleteUncompleteComplete
ChorioamnionitisNoYesYes
Type of deliveryC-sectionC-sectionC-section
Multiple deliveryYesYesNo

Infants12345

Rupture of fetal membranes (h)672000432
Twin position12211
SexFFFFF
Gestational age (wk)28 + 528 + 528 + 628 + 627 + 2
Birth weight (g) (-score)1070 (−0.71)980 (1.01)1082 (−0.66)1200 (−0.26)770 (−1.02)
Birth height (cm) (-score)36 (−1.3)36 (−1.3)36 (−1.3)36 (−1.3)32 (−1.8)
Birth head circumference (cm) (-score)26 (−0.8)26 (−0.8)25.5 (−1.1)26 (−0.8)24 (−0.8)
Apgar score at 1 min89857
Apgar score at 5 min99978
RevivalVentilationNoVentilationVentilationVentilation
PDAYesNoYesYesNo
Meconium spontaneous expulsionYesYesYesYesYes
Meconium expulsion (h)249483614
Probiotic starting age (d)22224
Probiotic treatment length (d)1818311925
NICU stay (d)188146449
Age at discharge (d)51516064101
Corrected gestational age at discharge (wk)3636373842
DeathNoNoNoYesNo

PDA: patent ductus arteriosus; NICU: neonatal intensive care unit.
Antenatal corticosteroid treatment was uncompleted or complete when mother received one or two doses of betamethasone, respectively, within one week and 24 h before delivery.
Apgar test ranged from 1 to 10: less than 5 means risk; up to 7 means normal.
Twin position means the position at birth, 1 being the infant who was nearest to the cervix.