[Trends in the frequency of obstetrical operations and perinatal mortality in the Czech Republic in comparison with other countries].

In an international epidemiological survey during a 10-year period the increase of obstetric operations was investigated in 11 countries with advanced perinatal care. Major differences were found as regards the frequency of Caesarean sections as well as vaginal operations (forceps and vacuum extraction). The mean effectiveness of the increase in the frequency of Caesarean sections on the reduction (evaluated by the mille drop of perinatal mortality rate is reduced when the frequency of Caesarean section) exceeds about 10%. Of all investigated countries only the Netherlands and the Czech Republic achieve a low perinatal mortality, while the frequency of Caesarean sections is low. The author discusses the reasons for the revealed differences between different countries.