FOLFOX-HAIC as Conversion Treatment for Initially Unresectable Colorectal Liver Metastasis

The procedures of FOLFOX-HAIC were as follows: 1) a 5 French sheath was inserted into the femoral artery by Seldinger technique, then a 3.5 French catheter entered the coeliac trunk and superior mesenteric artery to assess the feeding arteries of tumors and identify any extra-collateral vessels which may cause drug leakage. These vessels would be embolized with gelatin sponge particles or metallic coils if necessary. A 2.7 French microcatheter was selectively inserted into the left/right/proper hepatic artery then patients were transferred to inpatient ward to start chemotherapy drug infusion. The FOLFOX regimen involving oxaliplatin (130mg/m2, day 1, 0-2h), leucovorin (400 mg/m2, day 1, 2-3h), 5-Fu (400mg/m2, day 1, bolus at 3h, then 2400 mg/m2, day 1-3, 3-49h), was administered via the microcatheter. The microcatheter and sheath were removed after HAIC finished. We didn't implanted port catheter system and repeated percutaneous femoral artery puncture and catheterization once every 3

The procedures of FOLFOX-HAIC were as follows: 1) a 5 French sheath was inserted into the femoral artery by Seldinger technique, then a 3.5 French catheter entered the coeliac trunk and superior mesenteric artery to assess the feeding arteries of tumors and identify any extra-collateral vessels which may cause drug leakage. These vessels would be embolized with gelatin sponge particles or metallic coils if necessary. A 2.7 French microcatheter was selectively inserted into the left/right/proper hepatic artery then patients were transferred to inpatient ward to start chemotherapy drug infusion.

We would inject bevacizumab at the dose of 7.5mg/kg once every 3 weeks if the primary tumors located from right-side to splenic flexure colon or the genotype of RAS or RAF was mutational.

We would inject cetuximab at an initial dose of 400mg/m2 and maintained a dose of 250mg/m2 once every week if we didn't choose bevacizumab.

If patients reached potential resectable state, we would perform liver resection.