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The Association between Intrauterine Inflammation and Spontaneous Vaginal Delivery at Term: A Cross-Sectional Study

Author

Listed:
  • Michiel L Houben
  • Peter G J Nikkels
  • Grada M van Bleek
  • Gerard H A Visser
  • Maroeska M Rovers
  • Hilda Kessel
  • Wouter J de Waal
  • Leontine Schuijff
  • Annemiek Evers
  • Jan L L Kimpen
  • Louis Bont

Abstract

Background: Different factors contribute to the onset of labor at term. In animal models onset of labor is characterized by an inflammatory response. The role of intrauterine inflammation, although implicated in preterm birth, is not yet established in human term labor. We hypothesized that intrauterine inflammation at term is associated with spontaneous onset of labor. Methods/Results: In two large urban hospitals in the Netherlands, a cross-sectional study of spontaneous onset term vaginal deliveries and elective caesarean sections (CS), without signs of labor, was carried out. Placentas and amniotic fluid samples were collected during labor and/or at delivery. Histological signs of placenta inflammation were determined. Amniotic fluid proinflammatory cytokine concentrations were measured using ELISA. A total of 375 women were included. In term vaginal deliveries, more signs of intrauterine inflammation were found than in elective CS: the prevalence of chorioamnionitis was higher (18 vs 4%, p = 0.02) and amniotic fluid concentration of IL-6 was higher (3.1 vs 0.37 ng/mL, p

Suggested Citation

  • Michiel L Houben & Peter G J Nikkels & Grada M van Bleek & Gerard H A Visser & Maroeska M Rovers & Hilda Kessel & Wouter J de Waal & Leontine Schuijff & Annemiek Evers & Jan L L Kimpen & Louis Bont, 2009. "The Association between Intrauterine Inflammation and Spontaneous Vaginal Delivery at Term: A Cross-Sectional Study," PLOS ONE, Public Library of Science, vol. 4(8), pages 1-7, August.
    • Handle: RePEc:plo:pone00:0006572
    DOI: 10.1371/journal.pone.0006572
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