Abstract
The volume of amniotic fluid increases progressively (10 weeks, 30 ml; 20 weeks, 250 ml; 30 weeks, 750 ml; 36 weeks, 900 ml) and then falls slightly at term. Hydramnios is an excess of amniotic fluid (more than 2000 ml), usually accumulating gradually. Specific causes include: (a) unknown (in two thirds of patients); (b) fetal abnormalities, neural tube defects, oesophageal and duodenal atresia, congenital heart defects, Down’s syndrome, alpha thalassaemia; (c) diabetes, usually the result of inadequate glycaemic control or malformations; (d) twin-to-twin transfusion syndrome in monozygotic twinning; (e) fetal hydrops (rhesus isoimmunisation, rubella, syphilis, toxoplasmosis); (f) chorioangioma of the placenta, circumvallate placenta.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 2000 Springer-Verlag London Limited
About this chapter
Cite this chapter
Stabile, I., Chard, T., Grudzinskas, G. (2000). Disorders Involving Amniotic Fluid. In: Clinical Obstetrics and Gynaecology. Springer, London. https://doi.org/10.1007/978-1-4471-0783-5_11
Download citation
DOI: https://doi.org/10.1007/978-1-4471-0783-5_11
Publisher Name: Springer, London
Print ISBN: 978-1-85233-615-8
Online ISBN: 978-1-4471-0783-5
eBook Packages: Springer Book Archive