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Does gut atresia cause polyhydramnios?

R M Kimble1, J E Harding, A Kolbe

  • 1Department of Paediatrics, University of Auckland, New Zealand.

Pediatric Surgery International
|May 1, 1998
PubMed
Summary
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Maternal polyhydramnios is linked to fetal gut atresia. Complete obstruction, particularly esophageal atresia and certain types of duodenal atresia, strongly predicts polyhydramnios, impacting amniotic fluid regulation.

Area of Science:

  • Perinatology
  • Fetal Surgery
  • Gastroenterology

Background:

  • Fetal gut atresia, a congenital condition, can affect amniotic fluid volume.
  • Polyhydramnios, an excess of amniotic fluid, is a known complication but its predictive factors in relation to specific atresia types are not fully elucidated.

Purpose of the Study:

  • To investigate the association between different types of fetal gut atresia and the development of maternal polyhydramnios.
  • To identify specific atresia characteristics that predict polyhydramnios.

Main Methods:

  • Retrospective review of case notes for 80 infants diagnosed with fetal gut atresia or stenosis.
  • Analysis of the incidence of maternal polyhydramnios in relation to the type and severity of fetal gastrointestinal obstruction.

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Main Results:

  • Polyhydramnios occurred in all cases of pure esophageal atresia (100%) and Type III duodenal atresia (DA) with a non-bifid bile duct (100%).
  • High incidence of polyhydramnios was observed in Type I DA (80%) and other small intestine atresias (24%).
  • Polyhydramnios was absent in cases of partial obstruction, except for one instance of DA with a bifid bile duct.

Conclusions:

  • The degree of fetal gastrointestinal obstruction is a key determinant of polyhydramnios.
  • Fetal swallowing and gastrointestinal fluid absorption play a crucial role in regulating amniotic fluid volume.
  • These findings aid in predicting pregnancies at risk for polyhydramnios due to fetal gut atresia.