The term open-close was used when the intention was to perform CRS and HIPEC but the patient was considered to be inoperable after exploration and only biopsies were taken and the abdomen was closed again. The term debulking was used in the same situation but when the surgeon decided to excise some major tumour mass such as ovarian metastasis or omental cake without any radical operation performed. Patients treated with open-close or debulking are analysed together in this study and are herein referred to as open-close/debulking.