FETAL UMBILICAL CORD BLOOD ERYTHROPOIETIN, INTERLEUKIN-6, PH, PO 2 , PCO 2 , AND BASE EXCESS LEVELS IN HISTOLOGIC AND/OR CLINICAL CHORIOAMNIONITIS: IS THE RESPONSE ONLY INFLAMMATORY?
Abstract
To determine the correlation of histological chorioamnionitis (CA) with and without clinical CA with umbilical cord blood gases, erythropoietin (EPO), and interleukin-6 (IL-6) levels. METHODS: Umbilical artery blood gas analysis (pH, pO(2), pCO(2), BE) and umbilical vein EPO and IL-6 levels were measured in 202 infants from normal, histological, and no clinical CA and histological plus clinical CA pregnancies. RESULTS: Umbilical artery blood gas analyses were not different between normal controls and histological and clinical CA groups. Blanc Stage 1 histological CA had no abnormal EPO or IL-6 umbilical blood results. EPO in umbilical venous blood was elevated only in those infants with both histological and clinical CA. Umbilical vein IL-6 levels were elevated in all advanced microscopic and clinical CA. High and low EPO groups also have corresponding high and low IL-6 levels suggesting a common stimulus for these substances. CONCLUSIONS: Blanc stage I histological CA is probably clinically insignificant. CA is infrequently associated with abnormal umbilical artery blood gas levels. Advanced histological and clinical CA can elevate both EPO and IL-6 in umbilical blood and these may be key elements of mechanisms that effect fetal brain function.
Part of CIRS Nexus · Curated by Lauren Lowenstein, The Biotoxin Lady
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