Lymphocyte‐C‐Reactive Protein Ratio: Impact on Prognosis of Patients Following Resection of Primary Liver Cancer

ABSTRACT Objective We sought to characterize the prognostic value of lymphocyte‐C‐reactive protein ratio (LCR) among patients undergoing liver resection (LR) for hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (ICC). Methods Patients who underwent curative‐intent LR for HCC and ICC between 2000 and 2023 were identified from a multiinstitutional database. The prognostic value of nine different inflammatory markers were evaluated relative to short‐ (i.e., postoperative morbidity) and long‐term (recurrence‐free survival [RFS] and overall survival [OS]) outcomes. Results Among 715 patients, 499 (69.8%) and 216 (30.2%) individuals were included in the derivation and validation cohorts, respectively. Patients with advanced disease and poor tumor biology had lower median levels of LCR. An optimal LCR cutoff threshold of 6100 was identified in the derivation cohort. LCR demonstrated the highest accuracy to predict RFS and OS, with areas under the ROC curve of 0.724 and 0.716, respectively. After adjusting for relevant clinicodemographic factors, lower LCR remained associated with higher odds of postoperative complications (OR: 1.98 [95% CI: 1.27–3.10] and p = 0.003) and particularly, infectious complications (OR: 2.80 [95% CI: 1.57–5.01] and p < 0.001). A lower LCR was independently associated with worse RFS (HR: 2.43 [95% CI: 1.41–3.83] and p = 0.002) and OS (HR: 2.95 [95% CI: 2.10–4.16] and p < 0.001). The prognostic ability of LCR for short‐ and long‐term outcomes performed well in an independent validation cohort. Conclusion LCR was strongly associated with risk of postoperative morbidity as well as worse RFS and OS among patients undergoing LR for HCC and ICC. Preoperative LCR assessment can aid surgeons in the preoperative risk‐stratification of patients undergoing surgery for primary liver cancer.