Abstract
Purpose
To evaluate the efficacy and safety of transarterial chemoembolization (TACE) plus radiotherapy compared with TACE alone for patients with hepatocellular carcinoma (HCC) invading the hepatic vein (HV) or inferior vena cava (IVC).
Materials and Methods
Data from 79 patients who underwent TACE plus radiotherapy as a first-line treatment for non-metastatic HCC invading the HV or IVC between 2006 and 2018 were retrospectively evaluated. These findings were compared with data from a historical control group, consisting of 80 patients who received TACE alone between 2000 and 2006.
Results
Baseline characteristics were similar in both groups. Median progression-free survival (PFS) (8.1 vs. 4.4 months, P = 0.003) and overall survival (OS) (18.3 vs. 9.5 months, P = 0.002) were longer in the TACE plus radiotherapy than in the TACE alone group. Multivariate analysis showed that PFS and OS were significantly associated with treatment type. Subgroup analyses found that TACE plus radiotherapy showed better OS than TACE alone in patients with Child–Pugh class A, maximal tumor size < 9 cm, tumor number < 4, serum alpha-fetoprotein level ≥ 400 ng/mL, infiltrative tumor, IVC tumor thrombus, and combined portal vein invasion. The major complication rates were similar between the TACE plus radiotherapy (16.5%) and the TACE alone (13.8%) group (P = 0.664)
Conclusion
Both TACE plus radiotherapy and TACE alone showed similar safety in treating non-metastatic HCC invading the HV or IVC. TACE plus radiotherapy seems effective to prolong OS and PFS compared to TACE alone in this specific patient group.
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Abbreviations
- HCC:
-
Hepatocellular carcinoma
- PVTT:
-
Portal vein tumor thrombosis
- HVTT:
-
Hepatic vein tumor thrombus
- OS:
-
Overall survival
- BCLC:
-
Barcelona Clinical Liver Cancer
- HV:
-
Hepatic vein
- IVC:
-
Inferior vena cava
- IVCTT:
-
Inferior vena cava tumor thrombus
- TACE:
-
Transarterial chemoembolization
- RT:
-
Radiotherapy
- RA:
-
Right atrium
- ECOG:
-
Eastern Cooperative Oncology Group
- GTV:
-
Gross tumor volume
- ITV:
-
Internal target volume
- PTV:
-
Planning target volume
- mRECIST:
-
Modified Response Evaluation Criteria in Solid Tumors
- CR:
-
Complete response
- PR:
-
Partial response
- SD:
-
Stable disease
- PD:
-
Progressive disease
- PFS:
-
Progression-free survival
- CIRSE:
-
Cardiovascular and Interventional Radiological Society of Europe
- AFP:
-
α-Fetoprotein
- IQR:
-
Interquartile range
- HBV:
-
Hepatitis B virus
- HCV:
-
Hepatitis C virus
- SD:
-
Standard difference
- n:
-
Number
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Alrashidi, I., Chu, H.H., Kim, J.H. et al. Combined Chemoembolization and Radiotherapy Versus Chemoembolization Alone for Hepatocellular Carcinoma Invading the Hepatic Vein or Inferior Vena Cava. Cardiovasc Intervent Radiol 44, 1060–1069 (2021). https://doi.org/10.1007/s00270-021-02815-3
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DOI: https://doi.org/10.1007/s00270-021-02815-3