Treatment of intracranial meningioma with single-session and fractionated radiosurgery: a propensity score matching study

Sci Rep. 2020 Oct 28;10(1):18500. doi: 10.1038/s41598-020-75559-8.

Abstract

Single-session stereotactic radiosurgery (SSRS) is recognized as a safe and efficient treatment for meningioma. We aim to compare the long-term efficacy and safety of fractionated stereotactic radiotherapy (FSRT) with SSRS in the treatment of grade I meningioma. A total of 228 patients with 245 tumors treated with radiosurgery between March 2006 and June 2017were retrospectively evaluated. Of these, 147 (64.5%) patients were treated with SSRS. The remaining 81 patients (35.5%) were treated with a fractionated technique. Protocols to treat meningioma were classified as 12-16 Gy per fraction for SSRS and 7 Gy/fraction/day for three consecutive days to reach a total dose of 21 Gy for FSRT. In univariate and multivariate analyses, tumor volume was found to be associated with local control rate (hazard ratio = 4.98, p = 0.025). The difference in actuarial local control rate (LCR) between the SSRS and FSRT groups after propensity score matching (PSM) was not statistically significant during the 2-year (96.86% versus 100.00%, respectively; p = 0.175), 5-year (94.76% versus 97.56%, respectively; p = 0.373), and 10-year (74.40% versus 91.46%, respectively; p = 0.204) follow-up period. FSRT and SSRS were equally well-tolerated and effective for the treatment of intracranial benign meningioma during the10-year follow-up period.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Brain Neoplasms / radiotherapy*
  • Dose Fractionation, Radiation
  • Edema
  • Female
  • Humans
  • Kaplan-Meier Estimate
  • Male
  • Meningeal Neoplasms / radiotherapy*
  • Meningioma / radiotherapy*
  • Middle Aged
  • Multivariate Analysis
  • Propensity Score
  • Proportional Hazards Models
  • Radiosurgery / methods*
  • Retrospective Studies
  • Stereotaxic Techniques
  • Treatment Outcome
  • Tumor Burden