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Introducción: El único tratamiento curativo para las metástasis hepáticas de cáncer colorrectal es la cirugía. La identificación de factores pronósticos nos permite individualizar el tratamiento de estos pacientes, mejorando sus resultados oncológicos a largo plazo. El objetivo de nuestro estudio es identificar la supervivencia y los factores pronósticos de pacientes sometidos a tratamiento quirúrgico de metástasis hepáticas de cáncer colorrectal. Métodos: Se trata de un estudio retrospectivo de todos los casos de hepatectomías por metástasis hepáticas de cáncer colorrectal, operadas en un hospital de tercer nivel en España, entre los años 2010 y 2018. Se realizó análisis de supervivencia univariante con las curvas de supervivencia Kaplan-Meier. Mediante el modelo multivariante regresión de Cox se determinaron los factores pronósticos asociados a la supervivencia global. Resultados: La supervivencia global y supervivencia libre de enfermedad de nuestra serie, a los 5 años fue del 43% y del 33%, respectivamente. En el análisis de supervivencia, las características de las metástasis hepáticas (números, tamaño mayor, distribución bilobar y enfermedad extrahepática) y postoperatorias (transfusión sanguínea, complicaciones graves y margen afecto), así como el KRAS no mutado resultaron estadísticamente significativos. No obstante, después de aplicar la regresión de Cox, solo se identificaron 5 factores de riesgo independientes: mutación del KRAS, metástasis hepáticas >4cm, transfusión intraoperatoria, complicaciones graves y margen afecto. Conclusiones: En nuestro grupo de pacientes hemos observado que el tamaño>4cm de la metástasis hepáticas, la transfusión intraoperatoria, las complicaciones posquirúrgicas graves y el margen afecto se mantienen como factores pronósticos tradicionales vigentes. Mientras que el biomarcador KRAS cobra un valor predictivo importante como factor pronóstico de supervivencia. (AU)

Introduction: Liver resection is the only curative treatment for colorectal liver metastasis. 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. Methods: A retrospective cohort study of all the hepatectomies for colorectal liver metastasis 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. Results: The 5-year overall survival and disease-free survival 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 5 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>4cm, 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. (AU)

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INTRODUCTION: Liver resection is the only curative treatment for colorectal liver metastasis. 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. METHODS: A retrospective cohort study of all the hepatectomies for colorectal liver metastasis 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. RESULTS: The 5-year overall survival and disease-free survival 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 5 independent risk factors were identified: major size metastasis >4 cm, 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.

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We present to you an interesting case of a woman who presented abdominal pain in the Emergency room with an unexpected diagnosis of ruptured left intrahepatic artery aneurism. The patient had no history of invasive biliary procedures that could provoke her condition. Endovascular definitive treatment was carried out with full left hepatic artery embolization. No complication regarding the treatment was noticed and the patient recovery successfully.

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