Year 2022 Vol. 30 No 4




N.N. Alexandrov National Cancer Centre of Belarus, Minsk,
The Republic of Belarus

Objective. To study the indicators and predictors of overall survival (OS) of patients with metastatic brain lesion in renal cell carcinoma after stereotactic radiosurgery (SRS).
Methods. The results of SRS of patients (n= 62) with 1 10 metastases in the brain with a diameter of no more than 3 cm were analyzed. A status on the Karnofsky scale was of at least 70%, withot extracranial progression, or there are reserves of systemic treatment. The OS parameters were studied and the prognostic factors after SRS were determined.
Results. The median OS was 18.0 months. Statistically significant differences in OS were revealed in patients with single and solitary metastases compared to the subgroup of patients with multiple foci (median OS were 20.0 months, 16.6 months, 10.6 months, respectively). The median OS with a single SRS session was 14.3 months, with 2 sessions 19.8 months, and with 3 or more sessions it was not achieved. The factors influenced on OS indicators were the number of metastases and the fact of repeated sessions of SRS with intracranial progression.
Conclusion. SRS for metastases of kidney cancer in the brain provides satisfactory OS values in patients with good functional status and a controlled extracranial process.

Keywords: renal cell carcinoma, brain metastasis, radiosurgery, overall survival
p. 366-372 of the original issue
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Address for correspondence:
223040, Republic of Belarus,
Minsk region, ag. Lesnoy,
Republican Scientific and Practical Center
of Oncology and Medical Radiology
named after A.I. N.N. Alexandrov,
Llaboratory of Radiation Therapy,
tel. +375291234930,
Demeshko Pavel D.
Information about the authors:
Dziameshka Pavel D., MD., Professor, Chief Researcher of the Laboratory of Radiation Therapy, Republican Scientific and Practical Center of Oncology and Medical Radiology named after N.N.. Aleksandrov, Minsk, Republic of Belarus.
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