羊水异常_全英文版 abnormal amniotic fluid volume概要课件

Abnormal amniotic fluid volume Abnormal amniotic fluid volume Polyhydramnios Oligohydramnios Polyhydramnios Definition Polyhydramnios is a medical condition describing an excess of amniotic fluid in the amniotic sac. It is seen in about 1% of pregnancies. It is typically diagnosed when the amniotic fluid is greater than 2000ml . There are two clinical varieties of polyhydramnios: Chronic polyhydramnios where excess amniotic fluid accumulates gradually Acute polyhydramnios where excess amniotic fluid collects rapidly Causes Fetal malformation Multiple pregnancy Placenta and Umbilical cord abnormalities Gestational diabetes mellitus Idiopathic polyhydramnios Polyhydramnios Clinical Manifestations Acute hydramnios： 2.Dyspnea 1.Edema 3.Overdistended uterus Develop often as early as 20 to 24 weeks Polyhydramnios Clinical Manifestations Chronic hydramnios Symptom is not obvious,and the accumulation of fl uid takes place gradually Develop often as early as 28 to 32 weeks Polyhydramnios Assist examination B ultrasound 羊水最大暗区垂直深度（ AFV） 8cm mild：811cm moderate：1215cm severe：15cm 羊水指数（AFI）25cm mild：2535cm moderate：3645cm severe：45cm Polyhydramnios Assist examination Polyhydramnios karyotype analysis blood type Examination blood glucose examination Diagnosis Medical history Clinical Manifestations Assist examination Polyhydramnios Medical history Treatment Polyhydramnios with normal fetus stop pregnancy and break the Fetal membrane Polyhydramnios with Fetal malformation 1.General teratment：Bed rest, diuretics, and water and salt restriction 2.Amniocentesis 3.Indomethacin Therapy ,ndomsn Polyhydramnios Oligohydramnios Oligohydramnios is a condition in pregnancy characterized by a deficiency of amniotic fluid. It is typically diagnosed when the amniotic fluid is less than 300ml . Definition Causes Fetal malformation Placenta hypofunction Premature rupture of fetal membranes Maternal factors: Dehydration, hypovolemia Oligohydramnios Clinical Manifestations Symptom is not obvious Signs Small uterine height and abdominal girth Have feelings of uterine contraction Little amniotic fluid Oligohydramnios Assist examination B ultrasound Measurement of amniotic fluid Others:electronic fetal monitor(EFM), no stress test（NST） Oligohydramnios Diagnosis Medical history Clinical Manifestations Assist examination Oligohydramnios Treatment 1.termination of pregnancy 2.Inject Ethacridine by amniocentesis i:kradan Oligohydramnios with Fetal malformation Oligohydramnios with normal fetus 1.termination of pregnancy if the fetus can live outside of ut