Hepatopancreaticobiliary malignancies with peritoneal carcinomatosis (PC) exhibit poor survival with current therapies; HCC 11 months with sorafenib, pancreaticobiliary 9-14 months with systemic chemotherapy.
We retrospectively reviewed our institutional hepatopancreaticobiliary malignancies with PC which underwent CRS/HIPEC from 2007-2017 and analyzed perioperative and oncologic outcomes.
17 patients were included; 9 HCC, 8 pancreaticobiliary (4 cholangiocarcinoma, 3 gallbladder, 1 pancreatic). PCI (12 vs. 9), completeness of cytoreduction (78% vs. 75%) and 30-day morbidity (11% vs. 13%) were equivalent. HCC received less neoadjuvant therapy (11% vs. 75%, p=0.008), though adjuvant therapy rates were similar (78% vs. 100%, p=0.156). At a median follow-up of 15 months, PFS was similar (7 vs. 10 months p=0.957). However, OS was longer in HCC (42 vs. 15 months p=0.206) with 59% 3-year OS (vs. 0% pancreaticobiliary).
CRS/HIPEC may offer a survival benefit in select HCC patients with PC, though has dubious utility in PB malignancies.