Background: Hepatocellular carcinoma (HCC) associated with bile duct tumor thrombus (BDTT) is uncommon in clinical practice. Surgical resection can achieve better survival than non-operative palliative treatments. However, there is great controversy regarding the optimal surgical modality, particularly regarding the approach to remove BDTT in patients with HCC with macroscopic BDTT.
Methods: Data from consecutive patients who underwent radical surgery for HCC and macroscopic BDTT at the Eastern Hepatobiliary Surgery Hospital and Fujian Provincial Hospital from January 2009 to December 2016 were retrospectively reviewed. The survival outcomes of patients who underwent hepatectomy combined with extrahepatic bile duct resection (the EBDR group) were compared with those of patients undergoing liver resection plus thrombectomy (the thrombectomy group) using propensity score matching (PSM). Univariate and multivariate Cox analyses were performed to identify independent prognostic factors for overall survival (OS) and recurrence-free survival (RFS).
Results: 217 patients included in this study were divided into two groups: the EBDR group (n=30) and the thrombectomy group (n=187). A total of 90 patients were matched by PSM with a 1:2 ratio. Before PSM, the OS and RFS rates were comparable between the two groups (for OS, P=0.517; for RFS, P=0.211). After PSM, the OS rates did not differ statistically significantly between the EBDR and thrombectomy groups (P=0.134). Nevertheless, the RFS rate of the EBDR group was significantly higher compared to that of the thrombectomy group (P=0.020). Multivariate analysis demonstrated that some traditional risk factors, such as tumor size and microscopic resection margin, were more important prognostic factors than the BDTT type.
Conclusions: For patients with HCC and macroscopic BDTT, hepatectomy combined with extrahepatic bile duct resection is associated with a reduced recurrence rate in comparison with concurrent thrombectomy. Further large-scale, prospective studies are warranted to evaluate the impact of different surgical modalities on these patients' survival.
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| http://dx.doi.org/10.21037/atm-20-6449 | DOI Listing |
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