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Oligohydramnios is a medical condition in pregnancy characterized by a deficiency of amniotic fluid, the fluid that surrounds the fetus in the abdomen, in the amniotic sac. The limiting case is anhydramnios , where there is a complete absence of amniotic fluid.
The amniotic fluid is the protective liquid contained by the amniotic sac of a gravid amniote. This fluid serves as a cushion for the growing fetus , but also serves to facilitate the exchange of nutrients, water, and biochemical products between mother and fetus.
By increasing the amniotic fluid level, the lungs are inflated, leading to normal growth. Oligohydramnios can also lead to compression deformities, which are caused by the pressure of the uterus on the developing fetus. By decreasing pressure on the developing fetus, amnioinfusion increases space for fetal movement and growth.
It includes clubbed feet, pulmonary hypoplasia and cranial anomalies related to the oligohydramnios. [clarification needed] Oligohydramnios is the decrease in amniotic fluid volume sufficient to cause deformations in morphogenesis of the baby. Oligohydramnios is the cause of Potter sequence, but there are many things that can lead to ...
Other risk factors include a multiple pregnancy, more than one previous delivery, and too much amniotic fluid. [2] [3] Whether medical rupture of the amniotic sac is a risk is controversial. [2] [3] The diagnosis should be suspected if there is a sudden decrease in the baby's heart rate during labor. [4] [2] Seeing or feeling the cord confirms ...
Those abruptions caused by venous bleeding at the periphery of the placenta develop more slowly and cause small amounts of bleeding, intrauterine growth restriction, and oligohydramnios (low levels of amniotic fluid). [9]
Several conditions and risk factors can lead to fetal distress or non-reassuring fetal status, [1] including: Low amniotic fluid (oligohydramnios) If there is too little amniotic fluid around the baby in the uterus, the baby can have trouble moving around in the uterus and its growth and temperature can be impacted.
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.