A novel HIPEC technique using hybrid CO₂ recirculation system: intra-abdominal diffusion test in a porcine model

The role of loco-regional treatment of peritoneal carcinomatosis using intraperitoneal chemotherapy is still investigated. Actually, new technologies are suitable for these procedures, especially a new hybrid system using CO₂ called Peritoneal Recirculation System (PRS-1.0 Combat). A HIPEC procedure in a porcine model using the PRS system was conducted. The objective of experimentation was to assess the distribution of liquid inside the abdomen, by using methylene blue instead of chemotherapy. Moreover, we positioned six different thermal probes in different abdominal regions inside the abdomen to measure the temperature during procedure. During the procedure, all thermal probes recorded an average temperature of 41.5°. At the end of infusion, the abdomen was emptied and then opened; the tracer distribution was recorded. No technical problems were recorded during the procedure. Good distribution of tracer was recorded. More studies are needed to investigate better this new technology.