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Effects of Fractionated Stereotactic Radiotherapy for Primary Hepatocellular Carcinoma / 대한방사선종양학회지
The Journal of the Korean Society for Therapeutic Radiology and Oncology ; : 92-97, 2005.
Article in Korean | WPRIM | ID: wpr-106475
ABSTRACT

PURPOSE:

Reports on the outcome of curative radiotherapy for the primary hepatocellular carcinoma (HCC) are rarely encountered in the literature. In this study, we report our experience of a clinical trial where fractionated stereotactic radiotherapy (SRT) was used in treating a primary HCC. MATERIALS AND

METHODS:

A retrospective analysis was performed on 20 patients who had been histologically diagnosed as HCC and treated by fractionated SRT. The long diameter of tumor measured by CT was 2~6.5 cm (average 3.8 cm). A single dose of radiation used in fractionated SRT was 5 or 10 Gy; each dose was prescribed based on the planning target volume and normalized to 85~99% isocenter dose. Patients were treated 3~5 times per week for 2 weeks, with each receiving a total dose of 50 Gy (the median dose 50 Gy). The follow up period was 3~55 months (the median follow up period 23 months).

RESULTS:

The response rate was 60% (12 patients), with 4 patients showing complete response (20%), 8 patients showing partial response (40%), and 8 patients showing stable disease (40%). The 1-year and 2-year survival rates were 70.0% and 43.1%, respectively, and the median survival time was 20 months. The 1-year and 2-year disease free survival rates were 65% and 32.5%, respectively, and the median disease-free survival rate was 19 months. Some acute complications of the treatment were noted as follows dyspepsia in 12 patients (60%), nausea/emesis in 8 patients (40%), and transient liver function impairment in 6 patients (30%). However, there was no treatment related death.

CONCLUSION:

The study indicates that fractionated SRT is a relatively safe and effective method for treating primary HCC. Thus, fractionated SRT may be suggested as a local treatment for HCC of small lesion and containing a single lesion, when the patients are inoperable or operation is refused by the patients. We thought that fractionated SRT is a challenging treatment modality for the HCC.
Subject(s)

Full text: Available Index: WPRIM (Western Pacific) Main subject: Radiotherapy / Survival Rate / Retrospective Studies / Follow-Up Studies / Carcinoma, Hepatocellular / Disease-Free Survival / Dyspepsia / Liver Type of study: Observational study / Prognostic study Limits: Humans Language: Korean Journal: The Journal of the Korean Society for Therapeutic Radiology and Oncology Year: 2005 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Radiotherapy / Survival Rate / Retrospective Studies / Follow-Up Studies / Carcinoma, Hepatocellular / Disease-Free Survival / Dyspepsia / Liver Type of study: Observational study / Prognostic study Limits: Humans Language: Korean Journal: The Journal of the Korean Society for Therapeutic Radiology and Oncology Year: 2005 Type: Article