Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy in peritoneal carcinomatosis from colorectal and appendiceal cancer: five-years of experience

An increasing promising evidence support the use of cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) for treatment of peritoneal carcinosis from colorectal cancer (CRC) and appendiceal cancer (AC). In our institute 18 patients with CRC and 4 patients with AC undergone to CRS and HIPEC were retrospectively analyzed from 2011 to 2016. Patients and tumor characteristics were analyzed. Overall survival and disease free survival were analyzed with Kaplan-Meier curves and log-rank testing. Median disease free survival (DFS) is 20.5 and 31.4 months in CRC and AC respectively (P=0.76). Instead mean overall survival is 37.8 and 44.6 months in CRC and AC group respectively (P=0.46). Primary CRC have an improved DFS compared patients with relapse tumor (45.2 versus 19.4 months) (P=0.037). Comparing with conventional chemotherapy regimens CRS and HIPEC from CRC and AC may obtain a better disease control particularly when a complete cytoreduction is achieved. The combined treatment can have a potential curative intent.