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Polyhydramnios is a medical condition describing an excess of amniotic fluid in the amniotic sac.It is seen in about 1% of pregnancies. [1] [2] [3] It is typically diagnosed when the amniotic fluid index (AFI) is greater than 24 cm. [4] [5] There are two clinical varieties of polyhydramnios: chronic polyhydramnios where excess amniotic fluid accumulates gradually, and acute polyhydramnios ...
Twin-to-twin transfusion syndrome (TTTS), also known as feto-fetal transfusion syndrome (FFTS), twin oligohydramnios-polyhydramnios sequence (TOPS) and stuck twin syndrome, is a complication of monochorionic multiple pregnancies (the most common form of identical twin pregnancy) in which there is disproportionate blood supply between the fetuses.
Duodenal atresia is the congenital absence or complete closure of a portion of the lumen of the duodenum.It causes increased levels of amniotic fluid during pregnancy (polyhydramnios) and intestinal obstruction in newborn babies.
The opposite of oligohydramnios is polyhydramnios, an excess volume of amniotic fluid in the amniotic sac. Amniotic fluid embolism is a rare but very often fatal condition for both mother and child. Medical applications
Twin oligohydramnios-polyhydramnios sequence is a rare condition that may occur when twins sharing a single placenta develop significant vascular cross-connections, known as anastomoses, resulting in blood flowing away from one twin to the other. [23] This process can result in polyhydramnios in one twin and oligohydramnios in the other twin. [23]
In affected children studied, the first signs of Pretzel syndrome begin during gestation: 80% of mothers have polyhydramnios, extra amniotic fluid around the affected baby. The majority of mothers also have preterm labor starting anywhere from 25–38 weeks gestation. The brain is large and malformed in all affected children.
Fetal abnormalities are conditions that affect a fetus or embryo, are able to be diagnosed prenatally, and may be fatal or cause disease after birth. They may include aneuploidies, structural abnormalities, or neoplasms. Acardiac twin; Achondrogenesis; Achondroplasia
Esophageal atresia is a congenital medical condition (birth defect) that affects the alimentary tract. It causes the esophagus to end in a blind-ended pouch rather than connecting normally to the stomach. It comprises a variety of congenital anatomic defects that are caused by an abnormal embryological development of the esophagus.