Abstract
ObjectivesThe role of surgery in stage IV gallbladder (GB) cancer is not well established. This study analyses prognostic factors in patients with stage IV GB cancer following surgical resection with the aim of identifying a subgroup of patients who might benefit from surgical resection. MethodsClinicopathological details were analysed for 94 patients who were surgically treated for stage IV GB cancer at Seoul National University Hospital. ResultsMedian survival was 8 months in patients with either stage IVa or IVb disease. Sixteen patients (17.0%) underwent resection with curative intent, which increased overall survival over that in patients undergoing palliative surgery (P < 0.001). No survival benefit was seen following surgery with curative intent in patients with stage IVa disease (P = 0.764). Surgery with curative intent resulted in a survival benefit in patients with stage IVb disease, patients with an isolated liver metastasis near the GB bed (median survival: 31 months vs. 9 months; P < 0.001) and patients with limited numbers of peritoneal implantations (median survival: 20 months vs. 6 months; P = 0.002). Preoperative serum carcinoembryonic antigen (CEA) (P = 0.018), surgery with curative intent (P = 0.045) and adjuvant chemotherapy (P = 0.002) were independent prognostic factors in patients with stage IV GB cancer. ConclusionsSurgery in combination with systemic chemotherapy may be beneficial in carefully selected patients with stage IVb GB cancer.
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