Abstract：
BACKGROUND:High concentrations of interleukin-6 (IL-6) have been demonstrated in amniotic fluid (AF) from women with intra-amniotic infection. Recent studies have reported that IL-6 levels in AF were related to an increase in neonatal morbidity; moreover, higher IL-6 plasma levels have been observed in neonates with sepsis. METHODS:A cohort study was carried out at the National Institute of Perinatology in Mexico City. Inclusion criteria were the following: 1) preterm singleton pregnancy; 2) intact membranes at time of enrollment, and 3) written informed consent. Women with other complications of pregnancy were excluded. Newborn sepsis during the first 72 h was defined as early-onset sepsis. Amniotic fluid was obtained at the moment of delivery. Amniotic fluid IL-6 (AF IL-6) was determined by enzyme-linked immunoassays. RESULTS:Ninety-three women met the criteria for enrollment in the study and 31 (33%) of their newborns had early-onset neonatal sepsis. The mean AF IL-6 in mothers of septic newborns was 5779 +/- 2804 pg/ml compared to 729 +/- 382 pg/ml in mothers with non-infected neonates (p < 0.001). AF IL-6 concentrations higher than 1250 pg/ml were significantly associated with early-onset sepsis (OR 33.3; 95% CI 9.4-117.3) (p < 0.001). Gestational age under 32 weeks was also associated with neonatal sepsis (OR 2.56; 95% CI 1.2-9) (p = 0.002). Women whose infants developed neonatal sepsis had a higher frequency of clinical chorioamnionitis (p = 0.02). CONCLUSIONS:IL-6 determination in AF may be a useful indicator to identify neonates with higher risk of in utero bacterial infection.
journal_name
Arch Med Resjournal_title
Archives of medical researchauthors
Figueroa-Damián R,Arredondo-García JL,Mancilla-Ramírez Jdoi
10.1016/s0188-0128(99)00015-9subject
Has Abstractpub_date
1999-05-01 00:00:00pages
198-202issue
3eissn
0188-4409issn
1873-5487pii
S0188-0128(99)00015-9journal_volume
30pub_type
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