The relation between amniotic fluid surfactant concentration in preterm labour and histological evidence of chorioamnionitis |
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Authors: | M. Higuchi M.D. H. Hirano K. Gotoh K. Otomo M. Maki |
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Affiliation: | (1) Department of Obstetrics and Gynecology, Akita University School of Medicine, 1-1-1, Hondo, 010 Akita, Japan |
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Abstract: | Summary Concentration of amniotic fluid disaturated phosphatidylcholine (DSPC), factors related to cervical ripening, and histopathological evidence of chorioamnionitis were studied in 38 patients in preterm labour with intact membranes; all of them delivered spontaneously before 37 weeks. There was no correlation between the amniotic fluid DSPC level and gestational age at the time of amniocentesis. However, a significant inverse correlation was found between the amniotic fluid DSPC level and the interval between the onset of labour and delivery. The amniotic fluid DSPC level in cases with onset-delivery interval of <48h was significantly higher than that in cases with an onsetdelivery interval of 48h or more. The gestational age in the former group was significantly lower than in the latter (28.6 vs 32.0 weeks). The amniotic fluid DSPC level in the patients with chorioamnionitis was significantly higher than that in the patients without chorioamnionitis, although the gestational age did not differ between the two groups. All 3 infants with RDS were associated with cervical incompetence. Patients in preterm labour with chorioamnionitis may be refractory to tocolysis and have higher amniotic fluid surfactant levels. |
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Keywords: | Preterm labour Chorioamnionitis Pulmonary surfactant Amniotic fluid |
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