Efficacy of Percutaneous Thermal Ablation Combined With Transarterial Embolization for Recurrent Hepatocellular Carcinoma After Hepatectomy and a Prognostic Nomogram to Predict Survival
Abstract
This study aimed to evaluate the efficacy of percutaneous thermal ablation combined with transarterial embolization for recurrent hepatocellular carcinoma after hepatectomy and establish a prognostic nomogram to predict survival. One hundred seventeen patients with recurrent hepatocellular carcinoma receiving ablation from 2009 to 2014 were included in primary cohort to establish a prognostic nomogram. Between 2014 and 2016, 51 patients with recurrent hepatocellular carcinoma treated by ablation were enrolled in the validation cohort to validate the predictive accuracy of the nomogram. All patients underwent locoregional ablation. Overall survival was the primary end point, and progression-free survival was the second end point. The performance of the nomogram was assessed through concordance index and calibration curve and compared with 5 conventional hepatocellular carcinoma staging systems. The 1-, 3-, and 5-year overall survival rates of primary cohort were 88.4%, 70.7%, and 64.1%, respectively. The 1-, 3-, and 5-year progression-free survival rates of primary cohort were 44%, 14%, and 8.7%, respectively. The results of multivariate analysis showed that tumor size ( P = .0469; hazard ratio, 1.020; 95% confidence interval, 1...Continue Reading
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