[Results of a prepartal monitoring program in twin pregnancies].

152 multiple pregnancies were examined retrospectively. In one group (A) of 59 multiple pregnancies was no therapy, whereas in the other one (B) of 93 multiple pregnancies the duration of pregnancy was prolonged by an early diagnosis using ultrasound, taking out of working process, cerclage in the 16th to 20th gestational week, compulsory hospitalisation (29th to 36th gestational week) and tocolysis and induction of labor in the 39th gestational week. By this duration of pregnancy could be prolonged about 17 days. 36th week could be reached by 82 per cent of the so tended pregnancies, 37th week by 35 per cent. Comparing the two regimes the mean birth weight of twin I increased significantly from 2170 to 2420 g and of twin II from 2210 to 2390 g. The percentage of neonates over 2000 g rose from 53,4 per cent to 72.8 per cent. Perinatal mortality decreased from 8.4 per cent to 3.3 per cent.