Professional
Technical
In the Industry Vocabulary Test
polyhydramnios
Pronunciation: pol-ee-hahy-DRAM-nee-ohs
Excessive accumulation of amniotic fluid during pregnancy, opposite of oligohydramnios.
Full Definition
Polyhydramnios, also called hydramnios, is a condition characterised by an abnormally large amount of amniotic fluid surrounding the foetus. Diagnosed when the amniotic fluid index exceeds 24cm or the deepest vertical pocket measures over 8cm, it can be associated with foetal anomalies, maternal diabetes, or multiple pregnancies. The condition may lead to preterm labor, cord prolapse, or placental abruption.
Usage
Usage note: Often confused with oligohydramnios - remember 'poly' means many/much.
In Context
- "Ultrasound revealed polyhydramnios with an AFI of 26cm, prompting further foetal assessment." — Ultrasound report
- "The maternal discomfort was attributed to polyhydramnios causing uterine overdistension." — Clinical assessment
Also known as
hydramnios
Contrasted with
oligohydramnios
Don't confuse with
oligohydramnios
normal amniotic fluid volume