[Amniocentesis in prenatal diagnosis of genetic disorders in twin pregnancies (author's transl)].

In 14 twin pregnancies amniocentesis was performed for prenatal detection of genetic disorders. The indications, technique of amniocentesis under control of ultrasound, results and the outcome of pregnancies were described. In all cases with two amniotic-sacs a separate amniocentesis was possible. The prenatal diagnosis was always proved after delivery.