50% cases (an exhaustive list of which is given in I don't think you need to mug up all of them. Hydrocephalus is associated with poor fetal prognosis but besides obstructed labour and its consequences there is no other risk to mother. Extra Edge : A study done in U.S. found an association between maternal smoking and hydrocephalus. The risk of recurrence of hydrocephaly after a first affected child is 2%. Management of Hydrocephalus : Detected antenately on USG Associated with other anomalies incompatible with life. No associated anomaly Cephalocentesis by transvaginal/transabdominal technique. Elective cesarean section Note : For details on hydrocephalus I would suggest you to go through of Fernando Arias 2/e, p. 331-332 and not third edition as many impoant details have been chalked out.">