Risks of fetomaternal hemorrhage resulting from amniocentesis with and without ultrasound placental localization.
The incidence of multiple abdominal punctures, blood-stained aspirates, and fetomaternal transfusion was compared in patients undergoin amniocentesis at various stages of pregnancy with and without prior placental localization by ultrasound. A lower incidence of complications was found in those on whom ultrasound examination had been performed.
D000649:Amniocentesis / Q000009:adverse effects*; D000653:Amniotic Fluid / Q000032:analysis; D005260:Female; D005331:Fetomaternal Transfusion / Q000209:etiology*; D006801:Humans; D010920:Placenta; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D011263:Pregnancy Trimester, Third; D014463:Ultrasonography