Abstract
Two series of cases of umbilical cord prolapse are submitted. One comprises 97 cases and the other 64. The total corrected mortality rate was 13.0% and 34.5% respectively, the mature corrected mortality rate 1.5% and 20.0%. The total mortality for breech presentations with prolapsed cord was 19.2% and 23.8% respectively. In cephalic presentations the mortality rate was 10.3% and 54.3% respectively. This difference in mortality is explained by a more active attitude in the department having the lower mortality, where the diagnosis was more often made by vaginal examination, the delivery was more rapid, and the use of Caesarean section more common.