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Zheng-Gang Xu,1– 3,* Fei-Hong Zhang,1– 3,* Dong-Wei Sun,1– 3,* Qi-Tong Zheng,1– 3 Gu-Wei Ji,1– 3 Ke Wang1– 3 1Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, People’s Republic of China; 2Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, People’s Republic of China; 3NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), Nanjing, People’s Republic of China*These authors contributed equally to this workCorrespondence: Ke Wang; Gu-Wei JiHepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, People’s Republic of China, Tel +86 18061675088; +86 15951758275, Fax +86 68136450, Email lancetwk@163.com; drjgw@njmu.edu.cnBackground: Resection of hepatocellular carcinoma (HCC) originating in the caudate lobe remains challenging, while the optimal extent of resection is debated. We aimed to evaluate the relative benefits of combined caudate lobectomy (CCL) versus isolated caudate lobectomy (ICL) for caudate HCC.Methods: Patients who underwent curative-intent resection for caudate HCC between January 2010 and December 2018 were identified from a single-center database. Surgical outcomes of the two strategy groups were analyzed before and after propensity score matching. A systematic review with meta-analysis was also performed to compare outcomes of CCL versus ICL for caudate HCC.Results: A total of 28 patients were included: 11 in the CCL and 17 in the ICL group. Compared with ICL, the CCL group contained patients with larger tumors and a higher incidence of vascular invasion. After propensity score matching, 6 pairs of patients were selected. In the well-matched cohort, CCL demonstrated significantly improved recurrence-free survival (RFS) (P = 0.047) compared with ICL; no significant differences were noted for overall survival (OS), operation time, blood loss and morbidity rate. A total of 227 patients from nine eligible studies and ours were involved in the systematic review. Meta-analysis revealed that CCL provided better RFS (hazard ratio 0.54, 95% confidence interval 0.31– 0.92) than ICL; no significant differences were observed in OS, operation time, blood loss and morbidity rate.Conclusion: CCL confers superior RFS over ICL without compromise of perioperative outcomes and should be prioritized for patients with caudate HCC when feasible, especially for those with large-sized tumors.Keywords: hepatocellular carcinoma, caudate lobe, surgery, outcomes, meta-analysis |
