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Background: There is no information regarding transarterial chemoembolization (TACE) as a postoperative management after hepatic resection for patients with hepatitis B virus (HBV)-associated intrahepatic cholangiocarcinoma (ICC). Methods: Forty-two patients with pathological confirmation of HBV-associated ICC were enrolled. Prognostic impact of the clinicopathological factors as well as postoperative TACE were evaluated. Computed tomography findings of HBV-associated ICC were assessed. Results: Tumor size of larger than 5 cm (hazard ratio [HR], 5.654; 95% confidence interval [CI], 1.175 to 27.204; P = 0.031), postoperative TACE (HR, 0.123; 95% CI, 0.023 to 0.643; P = 0.013), and lymph node metastasis (HR, 3.284; 95% CI, 1.236 to 8.724; P = 0.017) revealed to be independently associated with survival outcomes of patients with HBV-associated ICC. Application of TACE, as a postoperative management to control early local recurrence on the basis of hepatic arterial phase enhancement, significantly prolonged survival outcomes (1-yr, 88.9%; 3-yr, 77.8%; 5-yr, 66.7%), compared to the patients who did not receive TACE (1-yr, 63.6%; 3-yr, 30.8%; 5-yr, 13.0%). When analyzed according to the status of hepatic arterial phase, arterial phase enhancement demonstrated a favorable trend on prognosis of patients with HBV-associated ICC without statistical significance (HR, 0.435; 95% CI, 0.140 to 1.359; P = 0.141), and TACE independently improved overall survival of patients with arterial phase enhancement (HR, 0.105; 95% CI, 0.014 to 0.774; P = 0.027). Conclusions: Put together, our results indicate that postoperative TACE effectively improves prognosis of HBV-associated ICC with arterial phase enhancement in CT scans. Large-sized trials are required for our results to be applied in clinical medicine.

international journal of biological sciences

Transarterial Chemoembolization: A Favorable Postoperative Management to Improve Prognosis of Hepatitis B Virus-associated Intrahepatic Cholangiocarcinoma after Surgical Resection