[Can by preventive cervix cerclage the premature birth rate in multiple pregnancy be reduced? A retrospective statistical analysis on effectiveness of cerclage using the Bavarian Perinatal Survey 1978-1980].

Through a retrospective statistical analyzation of 3081 multiple births with 907 cerclage of BPE from 1978-1980, among which included 77 multiple births and 61 Cerclage cases of the Amberg gynecology clinic, could be proved that the liberal use of prophylactic cerclages could not reduce the premature birth rate of multiple birth pregnancies.