Accurate estimation of the risk of postoperative mortality (POM) is essential for the decision whether or not to perform cytoreductive surgery in a patient with advanced stage ovarian cancer. To ascertain modern reference figures, a systematic review of studies reporting POM after primary cytoreductive surgery for advanced stage epithelial ovarian cancer (EOC) was performed.A Medline search was performed to retrieve papers on primary cytoreductive surgery for advanced stage EOC. Twenty-three papers met the inclusion criteria and were reviewed.According to population-based studies, POM after primary cytoreductive surgery for EOC is 3.7% on average. Single centre studies report an average rate of 2.5%. The overall mean POM is 2.8%. POM is more frequent for elderly women and after extensive procedures. Accurate information on age-specific and procedure-specific rates could not be obtained.POM rates after surgery for EOC are satisfactorily low. There is a clear need for reliable reference figures for mortality after debulking surgery in the elderly.