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Year : 2019  |  Volume : 56  |  Issue : 3  |  Page : 202-206

Evaluatıon of hypofractıonated stereotactıc radıotherapy (HFSRT) to the resectıon cavıty after surgıcal resectıon of braın metastases: A sıngle center experıence

Department of Radiation Oncology, University of Health Sciences, Gulhane Medical Faculty, Ankara, Turkey

Correspondence Address:
Ferrat Dincoglan
Department of Radiation Oncology, University of Health Sciences, Gulhane Medical Faculty, Ankara
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijc.IJC_345_18

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INTRODUCTON: Adjuvant radiotherapy after surgical resection is used for the treatment of patients with brain metastasis. In this study, we assessed the use of adjuvant hypofractionated stereotactic radiotherapy (HFSRT) to the resection cavity for the management of patients with brain metastasis. MATERIALS AND METHODS: A total of 28 patients undergoing surgical resection for their brain metastasis were treated using HFSRT to the resection cavity. A total HFSRT dose of 25–30 Gray (Gy) was delivered in 5 consecutive daily fractions. Patients were retrospectively assessed for toxicity, local control, and survival outcomes. Kaplan-Meier method and log-rank test were used for statistical analysis. RESULTS: Median planning target volume (PTV) was 27.2 cc (range: 6–76.1 cc). At a median follow-up time of 11 months (range: 2–21 months.), 1-year local control rate was 85.7%, and 1-year distant failure rate was 57.1% (16 patients). Median overall survival was 15 months from HFSRT. Higher recursive partitioning analysis class (P = 0.01) and the presence of extracranial metastases (P = 0.02) were associated with decreased overall survival on statistical analysis. There was no radiation necrosis observed during follow-up. CONCLUSION: HFSRT to the resection cavity offers a safe and effective adjuvant treatment for patients undergoing surgical resection of brain metastasis. With comparable local control rates, HFSRT may serve as a viable alternative to whole brain irradiation.


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