[Prenatal sonographic diagnosis of abnormalities and the significance of prepartum therapeutic procedures].

Between 1981 and October 1985, prenatal ultrasound examinations revealed 19 malformations of the central nervous system, 13 intestinal malformations, 15 malformations of the urogenital tract, four non-immunological cases of hydrops fetalis, two sacral teratomas and one cardiac malformation. In only one of eleven cases of hydrocephalus were all preconditions fulfilled for considering an intra-uterine ventriculo-amniotic shunt insertion. In bilateral obstructive uropathy the dynamics of amniotic fluid volume both before and after intra-amniotic administration of an infusion is decisive for any further prognostic assessment.