Purpose: Right-sided tumors have been reported to have a poorer survival rate than left-sided tumors; however, there remains debate regarding whether sidedness is an independent prognostic factor in colorectal cancer liver metastasis (CRLM). This study aimed to assess the impact of sidedness on prognosis in resectable CRLM and to identify prognostic factors.
Methods: Patients who underwent liver resection for CRLM at Samsung Medical Center from January 2008 to December 2021 were included in the investigation. Overall survival (OS) and progression-free survival (PFS) were analyzed, and prognostic factors were identified.
Results: A total of 497 patients were included in the study, with 106 on the right side and 391 on the left side. The right-sided group had a higher percentage of synchronous tumors (90.6% 80.3%, P = 0.020). In survival analysis, the right side showed lower 5-year OS (49.7% 54.2, P = 0.305) and 5-year PFS (57.1% 60.2%, P = 0.271), but the differences were not statistically significant. In the analysis of prognostic factors, synchronous tumor (odds ratio [OR], 5.01; P < 0.001), CEA (OR, 1.46; P = 0.016), and maximum tumor size of hepatic metastasis (OR, 1.09; P = 0.026) were associated with OS.
Conclusion: In resectable CRLM, there was no difference in prognosis based on sidedness. CEA level, synchronous tumor, and maximum tumor size of hepatic metastasis were identified as prognostic factors.
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| http://dx.doi.org/10.4174/astr.2024.107.5.264 | DOI Listing |
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