The following are related to anencephaly except :
It is commonly associated with prematurity
Often associated with oligohydramnios
Increased association with female baby
Obstructed labour may occur
Anenchepaly results from deficient development of the vault of the skull and brain tissue,but the facial poion is normal. The pituitary gland is often absent or hypoplastic. About 70% of anenchepaly fetuses are females. More prevalent in elderly mothers and first bih. Diagnosis: In the first half of pregnancy, daignosis is made by elevated levels of alpha-fetoproteins in amniotic fluid. It is CONFIRMED by USG. The findings around 10wks are: Absense of cranial vault Angiomatous brain tissue. In the latter half of pregnancy, diagnosis is difficult especially when associated with hydraminos. Complications: Hydraminos- associated with 70% Malpresentations Premature labour especially when associated with hydraminos Tendency of postmaturity Shoulder Dystocia Obstructed labour if the head and shouder try to engage together because of sho neck. Iniencephaly: Failure of formation of cervical and upper thoracic veebrae and base of the skull with abnormally formed brain tissue. TEXT BOOK OF OBSTETRICS, Dc duuta&;s ,9th edition, Page no.383
Fetus