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  • Title: Major hepatectomy for intrahepatic cholangiocarcinoma or colorectal liver metastases. Are we talking about the same story?
    Author: Doussot A, Fuks D, Regimbeau JM, Farges O, Sa-Cunha A, Pruvot FR, Adam R, Navarro F, Azoulay D, Heyd B, Pessaux P, AFC-colorectal liver metastases working group and the IHCC-AFC study group.
    Journal: Eur J Surg Oncol; 2019 Dec; 45(12):2353-2359. PubMed ID: 31787154.
    Abstract:
    INTRODUCTION: Major hepatectomy (MH) is often needed in the curative management of intrahepatic cholangiocarcinoma (IHCC) and colorectal liver metastases (CRLM). While similar outcomes could be expected after MH for IHCC and CRLM, outcomes seem worse after MH for IHCC. A better understanding of such differences might help improving perioperative outcomes but comprehensive analysis are lacking. METHODS: All patients undergoing curative intent MH for IHCC or CRLM from 2003 to 2009 were included from two dedicated multi-institutional datasets. Preoperative management and short-term outcomes after MH were first compared. Independent predictors of postoperative mortality and morbidity were identified. RESULTS: Among 827 patients, 333 and 494 patients underwent MH for IHCC and CRLM, respectively. Preoperative portal vein embolization was more frequently performed in the CRLM group (p < 0.001). MH in the IHCC group required more extended resection (p < 0.001). Postoperative mortality and severe morbidity rates were significantly higher in the IHCC group (7.2% vs. 1.2% and 29.7% vs. 11.1%, p < 0.001, respectively). Main causes for mortality were postoperative liver failure and deep surgical site infection. MH for IHCC was an independent risk factor for mortality (p < 0.001) and severe morbidity (p < 0.001). After propensity score matching (212 patients in each group), the aforementioned differences regarding outcomes remained statistically significant. CONCLUSION: This study suggests that IHCC patients are inherently more at risk after MH as compared to CRLM patients. Considering that postoperative liver failure was the most frequent cause of death, preoperative planning might have been inadequate in the setting of IHCC while more complex/extended resections should be expected.
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