Κυριακή 10 Δεκεμβρίου 2017

Comparison of radiation therapy modalities for hepatocellular carcinoma with portal vein thrombosis: A meta-analysis and systematic review

Publication date: Available online 9 December 2017
Source:Radiotherapy and Oncology
Author(s): Chai Hong Rim, Chul Yong Kim, Dae Sik Yang, Won Sup Yoon
PurposeWe performed a meta-analysis and systematic review to compare the radiotherapy (RT) modalities for hepatocellular carcinoma (HCC) with portal vein thrombosis (PVT).Materials and methodsWe searched the PubMed, EMBASE, Medline, and Cochrane library databases. The primary endpoint was the 1-year overall survival (OS), and response rate (RR), local control (LC), 2-year OS, and grade ≥3 toxicity incidence were evaluated as secondary endpoints.ResultsThirty-seven studies comprising 2513 patients were included. The pooled 1-year OS rates for the 3-dimensional conformal RT (3DCRT), selective internal RT (SIRT), and stereotactic body RT (SBRT) groups were 43.8% [95% confidence interval (CI): 37.6–50.2], 46.5% (95% CI: 37.7–55.6), and 48.5% (95% CI: 39.4–57.8). These inter-group differences were not statistically significant (p = 0.635). The pooled response rates were 51.3% (95% CI: 45.7–57.0), 33.3% (95% CI: 18.0–53.2), and 70.7 (95% CI: 63.7–76.8) for 3DCRT, SIRT, and SBRT groups, respectively; p = 0.001 and 0.031 for 3DCRT vs. SBRT and SIRT, respectively. The most common grade ≥ 3 complications were lymphocytopenia and bilirubin abnormalities in the 3DCRT and SIRT groups, respectively. Grade ≥ 3 complication was rare in SBRT group.ConclusionsOS did not differ among the modalities, although the response rates vary among modalities.



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