Nodular number as a prognostic indicator in hepatic resection for intermediate-stage hepatocellular carcinoma: An international multicenter observational study.

Abstract

e16271 Background: The role of hepatic resection in treating Barcelona Clinic Liver Cancer (BCLC) intermediate-stage hepatocellular carcinoma (HCC) is a subject of ongoing debate. This study aims to assess the prognostic significance of the number of nodular HCC in patients undergoing hepatic resection for intermediate-stage (BCLC stage B) HCC. Methods: An analysis was conducted using data from a multicenter database of patients who underwent curative-intent resection for BCLC intermediate-stage HCC. Patients were classified into binodular and tri(+)nodular (≥ 3 nodules) groups based on the number of tumor nodules. Long-term overall survival (OS) and recurrence-free survival (RFS) were compared between these groups. Univariate and multivariate Cox-regression analyses identified risk factors for OS and RFS. Additional comparisons were made with outcomes in patients with uninodular large HCC (single nodule > 5 cm; BCLC stage A). Results: Of the 338 patients with BCLC intermediate-stage HCC, 187 (55.3%) had binodular and 151 (44.7%) had tri(+)nodular disease. Patients with binodular HCC showed significantly better median OS (49.6 months) and RFS (22.2 months) compared to those with tri(+)nodular HCC (33.5 and 13.7 months, P = 0.036 and 0.009, respectively), and outcomes comparable to those with uninodular large HCC (59.8 and 26.8 months, P = 0.144 and 0.311, respectively). Multivariate analyses indicated that binodular HCC was independently associated with improved OS and RFS following hepatic resection in BCLC intermediate-stage HCC. Conclusions: Patients with binodular HCC exhibit more favorable survival outcomes post-resection of BCLC intermediate-stage HCC compared to those with tri(+)nodular HCC, akin to outcomes observed in BCLC early-stage uninodular large HCC. These findings highlight the prognostic relevance of nodular number in stratifying and guiding surgical decisions for intermediate-stage HCC. [Table: see text]