The trans-metastasis hepatectomy (through metastases previously ablated with radiofrequency): results of a 13-case study of colorectal cancer.

Background: Curative trans-metastasis liver resection immediately following radiofrequency (RF) destruction is a new technique that enables the proposition of a curative approach to patients with bilateral, unresectable liver metastases (LM), when the only possible future hepatectomy plane passes through a LM. Firstly, the ill-sited LM, which is located in the only feasible future hepatectomy plane, is ablated using RF; the hepatectomy is then performed through this ablated LM.

Aim: The aim of this study is to report the feasibility and efficacy of this new approach, known as post-RF-trans-metastasis-hepatectomy (PRFTMH).

Materials And Methods: Thirteen patients with colorectal primary cancer were treated with PRFTMPH between January 2000 and May 2004. The mean number of LMs per patient was 10.7. Preoperative hypertrophy of the future remaining liver was achieved by selective portal vein embolization in eight patients.

Results: The mortality rate was 7.6% (one death), and morbidity was 24%. No local recurrence was observed at the PRTMPH site after a mean follow-up of 19.4 months (range: 47-10), demonstrating the efficacy of this technique. All patients, except those who died postoperatively, are currently alive; the median survival has not yet been attained after a mean follow-up of 19.4 months.

Conclusion: TMPRFH is a new and safe technique, combining RF ablation and trans-RF-hepatectomy, which makes it possible to propose a curative approach in certain patients with non-resectable bilateral LMs.