Abstract
BackgroundPreliminary study results demonstrated parenchyma-sparing surgery (PSS) as an effective approach which allowed to remove colorectal cancer (CRC) metastatic lesions within the central liver cites and increased the probability of the liver re-resections.MethodsThe prospective analysis re-evaluation of the 185 CRC patients surgical treatment has been performed.ResultsAn overall 5-year survival (OS) of the 185 enrolled patients was 43 ± 7%, and the mean and median value for OS was 48.7 ± 1.9% and 55.2 ± 5 (95% CI: 44.4–66.1) months. The 5-year OS for CRC patients whose metastatic lesions were predominantly located within peripheral and central liver segments was 56 ± 8% and 27 ± 9%, respectively (p = 0.08). A 5-year disease-free survival (DFS) rates of patients with peripheral and central liver cites metastatic lesions were 31 ± 7 % and 15 ± 7%, p = 0,12. And the DFS median was 34.2 and 46.5 months for R1v and R0 cohorts, respectively, p = 0.62.ConclusionsParenchyma-sparing surgery should be a priority pathway for complex treatment of patients with deeply located lesions of the right liver lobe.Trial registrationThe study is registered in https://www.researchregistry.com/browse-the-registry#home/registrationdetails/5ed9f60863e9bf0016624456/, no. 5679.
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