Fetal swallowing and voiding in relation to hydramnios.
Fetal swallowing and voiding were measured using colloidal gold and an ultrasonic scanner, respectively. Subjects in the study were in their 38-40th week of pregnancy. Cases were divided into 3 groups: normal, hydramnios, and oligohydramnios. The normal group had a mean swallowing rate of 198 ml/day and a mean voiding rate of 23.6 ml/hr. No significant differences were found among these rates and the corresponding rates in the other 2 groups. It is concluded that mechanisms other than fetal swallowing and voiding can contribute to the control of amniotic fluid volume at term.
D000653:Amniotic Fluid / Q000378:metabolism; D003679:Deglutition; D005260:Female; D005333:Fetus / Q000502:physiology*; D006046:Gold; D006801:Humans; D006831:Polyhydramnios / Q000503:physiopathology*; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D014463:Ultrasonography; D014554:Urination
D006046:Gold