AIM. To compare results surgery ofcolorectal cancer with resection or radiofrequency thermoablation of liver metastasesi. MATERIALS AND METHODS. Fifty seven patients were included into study. In first group (n=24) liver resection was performed simultaneously with primary tumor surgery; in the second group (n=33) patients underwent local thermal destruction of metastases. RESULTS. Postoperative complications developed in 2 (8,3%) patients of group I and 4 (12,1%) in group II. In group II, the

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... toperative in-hospital mortality rate was 5,8% (2 patients) due to failure of colonic anastomosis withfecal peritonitis. The disease-free period in group I was 14,4±3,2 months. The 3-year survival rate was 39%, with the median survival of 32,5 months. In group II, the 3-year survival rate was 27%. CONCLUSION. Resectable liver metastases should undergo resection, if there are no adverse factors. This study shows that liver resection is a more effective treatment than radiofrequency thermoablation.