Identification of predictive factors for post-transarterial chemoembolization liver failure in hepatocellular carcinoma patients:A retrospective study

BACKGROUND Post-transarterial chemoembolization(TACE) liver failure occurs frequently in hepatocellular carcinoma(HCC) patients. The identification of predictors for postTACE liver failure is of great importance for clinical decision-making in this population.AIM To investigate the occurrence rate and predictive factors of post-TACE liver failure in this retrospective study to provide clues for decision-making regarding TACE procedures in HCC patients.METHODS The clinical records of HCC patients treated with TACE therapy were reviewed. Baseline clinical characteristics and laboratory parameters of these patients were extracted. Logistic models were used to identify candidates to predict post-TACE liver failure.RESULTS A total of 199 HCC patients were enrolled in this study, and 70 patients(35.2%) developed post-TACE liver failure. Univariate and multivariate logistic models indicated that microspheres plus gelatin embolization and main tumor size > 5 cm were risk predictors for postTACE liver failure [odds ratio(OR): 4.4, 95% confidence interval(CI): 1.2-16.3, P = 0.027; OR: 2.3, 95%CI: 1.05-5.3, P = 0.039, respectively]. Conversely, HCC patients who underwent tumor resection surgery before the TACE procedure had a lower risk for post-TACE liver failure(OR: 0.4, 95%CI: 0.2-0.95, P = 0.039).CONCLUSION Microspheres plus gelatin embolization and main tumor size might be risk factors for post-TACE liver failure in HCC patients, while prior tumor resection could be a favorable factor reducing the risk of post-TACE liver failure.