The Prognostic Value of the CA19-9/TBIL Ratio in Patients With Biliary Tract Cancers (BTCs): A Retrospective Study [post]

Jianchun Xiao, Li Wang, Tao Hong, Binglu Li, Wei Liu, Qiang Qu, Chaoji Zheng, Xiaodong He
2020 unpublished
Introduction: Incidence of biliary tract cancers (BTCs) in China is high, and surgery is the only curative option. Preoperative CA19-9 has been identified as a predictor for survival in patients with resectable BTCs, but more potential predictors need to be studied. This retrospective study aimed to establish the prognostic significance of CA19-9/TBIL ratio (CTR) in patients with BTCs.Methods: A retrospective analysis was performed in patients who diagnosed with BTCs and received surgical
more » ... ived surgical resection between 2013 and 2018 at PUMCH. Demographic and clinical parameters were collected. Preoperative CA19-9 and CTR were classified as elevated (> 58.6 and > 0.83) according to the receiver operating characteristics (ROC) analysis. Demographic and clinical parameters were compared between the groups using Student's t-test, chi-square, or Fisher's exact test. Survival analysis was performed by the Kaplan-Meier methods and the relationship between variables and survival was assessed by the log-rank test. Cox regression analysis was conducted to identify potential risk factors for overall survival.Results: In total 109 participants were involved in the final analysis. The overall survival rate was 18.0% at 5 years, with a median survival duration of 1.58 years. The Kaplan-Meier analysis indicated that higher CTR was associated with shorter OS (15 vs. 50, p < 0.01). Univariate survival analysis identified TNM staging, CA19-9, and CTR as statistically significant prognostic factors. In a multiple COX analysis, only CTR was proved as a significantly independent prognostic factor.Conclusion: CTR acts as an independent prognostic predictor for patients with biliary tract cancer.
doi:10.21203/rs.3.rs-75476/v1 fatcat:6d7gwgawezde7ca3oroxsty3tm