RT info:eu-repo/semantics/doctoralThesis T1 Análisis de supervivencia e Identificación de factores pronósticos tras cirugía curativa de metástasis hepáticas de cáncer colorrectal. A1 Plúa Muñiz, Katherine Teresa A2 Universidad de Valladolid. Escuela de Doctorado K1 Hígado - Metástasis K1 liver metastasis K1 Metástasis hepáticas K1 Survival analysis K1 Supervivencia K1 32 Ciencias Médicas AB INTRODUCTIONLiver resection is the only curative treatment for colorectal liver metastasis (CRLM). The identification of predictive factors leads to personalize patient management to enhance their long-term outcomes. This population-based study aimed to characterize factors associated with, and survival impact of patients who received hepatectomy for colorectal liver metastasis (CRLM). PATIENTS AND METHODSA retrospective cohort study of all the hepatectomies for colorectal liver metastasis (CRLMs) performed at third-level hospital of Spain (2010-2018) was conducted. The Kaplan-Meier method was used for survival analyses. Multivariable Cox and regression models were used to determine prognostic factors associated with overall survival (OS).RESULTS The 5-year overall survival (OS) and disease-free survival (DFS) were 42 and 33%, respectively. Survival analysis showed that metastasis features (number, largest size, distribution, and extrahepatic disease) and postsurgical factors (transfusion, major complications, and positive margin resection), as well as non-mutated KRAS, showed a significant association with survival. Otherwise, on multivariate analysis, only five independent risk factors were identified: major size metastasis > 4cm, RAS mutation, positive margin resection, intraoperative transfusion, and major complications. CONCLUSIONS According to our findings, major size metastasis > 4 cm, intraoperative transfusion, and major postoperative complications continue to be traditional prognostic factors. Meanwhile, the KRAS biomarker has a powerful impact as a survival prognostic factor. YR 2021 FD 2021 LK https://uvadoc.uva.es/handle/10324/60809 UL https://uvadoc.uva.es/handle/10324/60809 LA spa NO Escuela de Doctorado DS UVaDOC RD 10-jun-2024