Prognosis of the combination therapy results in patients with synchronous metastases of colorectal cancer

Abstract

Objectives - to optimize the indications for radiofrequency thermal ablation in patients with synchronous multiple metastases of colorectal cancer to the liver on the basis of prognostic treatment results. Material and methods. The study group included 78 patients with colorectal cancer with synchronous multiple bilobar liver metastases, who have underwent combined treatment in the period of 2007- 2015, such as cytoreductive surgery removing the primary intestinal tumor in combination with RFA of metastases in the liver, followed by chemotherapy. Results. A computer program for preoperative risk assessment of disease progression was developed and introduced in clinical practice. It is based on the results of the analysis of the factors, predicting the risk of relapse during the first year after cytoreductive surgery with RFA of synchronous multiple CRC liver metastases. Conclusion. The index of metastatic liver damage (the product of the sum of the diameters of metastatic liver lesions by their number), the mutational status of the KRAS gene, CEA values are significant factors in predicting the progression of the disease, which can optimize indications for radiofrequency thermal ablation in the treatment of patients with stage IV CRC with synchronous metastases to the liver.