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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.
Post-maturity is more likely to happen when a mother has had a post-term pregnancy before. After one post-term pregnancy, the risk of a second post-term birth increases by 2 to 3 times. [8] Other, minor risk factors include an older or obese mother, a white mother, male baby, or a family history of post-maturity. [9]
Oligohydramnios is the cause of Potter sequence, but there are many things that can lead to oligohydramnios. It can be caused by renal diseases such as bilateral renal agenesis (BRA), atresia of the ureter or urethra causing obstruction of the urinary tract, polycystic or multicystic kidney diseases, renal hypoplasia , amniotic rupture ...
Women with abnormal amounts of amniotic fluid, whether too much (polyhydramnios) or too little (oligohydramnios), are also at risk. [35] Anxiety and depression have been linked as risk factors for preterm birth. [35] [61] The use of tobacco, cocaine, and excessive alcohol during pregnancy increases the chance of preterm delivery.
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.
Being physically inactive, having a poor diet, drinking alcohol, and smoking are all risk factors for breast cancer, but the rise in younger women in particular might be linked to fertility, said ...
Risk factors include folate deficiency, drinking alcohol or smoking during pregnancy, poorly controlled diabetes, and a mother over the age of 35 years old. [5] [6] Many birth defects are believed to involve multiple factors. [6] Birth defects may be visible at birth or diagnosed by screening tests. [10]
Amnion nodosum is a placental hallmark of severe and prolonged oligohydramnios, and it is associated with a high risk of fetal and perinatal mortality. The cause and pathophysiology of nodule formation in Amnion nodosum are largely unknown.