Abstract
Purpose
To compare the efficacy, outcomes, and complications of single session (SS-SRS) and multisession (MS-SRS) stereotactic radiosurgery in the treatment of intracranial meningiomas.
Methods
Relevant articles were retrieved from PubMed, Scopus, Web of Science, and Cochrane. A systematic review and meta-analysis of treatment protocols and outcomes were conducted. After the selection process, 20 articles describing 1483 cases were included.
Results
A total of 1303 patients who underwent SS-SRS and 180 patients who underwent MS-SRS for the management of their intracranial meningioma were reported in the included studies. SS-SRS and MS-SRS had comparable one-year (SS-SRS: 98% vs. MS-SRS: 100%, p > 0.99) and five-year (SS-SRS: 94% vs. MS-SRS: 93%, p = 0.71) tumor control rates. The groups also had comparable tumor volume reduction/tumor regression rates (SS-SRS: 44% vs. MS-SRS: 25%, p = 0.25), tumor volume stability rates (SS-SRS: 51% vs. MS-SRS: 75%, p = 0.12), and tumor progression rates (SS-SRS: 4% vs. MS-SRS: 4%, p = 0.89). SS-SRS and MS-SRS yielded similar complication rates (10.4% vs. 11.4%, p = 0.68) and comparable functional improvement rates (MS-SRS: 44% vs. SS-SRS: 36%, p = 0.57). However, MS-SRS was used for significantly larger tumor volumes (MS-SRS: 23.8 cm3 vs. SS-SRS: 6.1 cm3, p = 0.02).
Conclusion
SS-SRS and MS-SRS resulted in comparable tumor control, tumor volumetric change, and functional outcomes despite significant biases in selecting patients for SS- or MS-SRS.
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Data availability
The authors confirms that data are available on reasonable requests.
Code availability
Not applicable.
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Acknowledgements
We thank Kristin Kraus, MSc, for her editorial assistance.
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Conception and design: Bin Alamer, Abou-Al-Shaar. Literature search, articles screen, and data extraction: Bin Alamer, Alnefaie, Qedair, Chaudhary, Hallak, Abdulbaki, Mallela, Palmisciano, Gersey, Legarreta, Abou-Al-Shaar. Data analysis: Bin Alamer, Mallela, Palmisciano, Abou-Al-Shaar. Manuscript draft: Bin Alamer, Mallela, Gersey, Labib, Zada, Sheehan, Couldwell, Lunsford, Abou-Al-Shaar. All authors critically revised and edited the first draft and commented on all versions of the manuscript. The project was supervised by Labib, Zada, Sheehan, Couldwell, Lunsford, Abou-Al-Shaar. All authors read and approved the final manuscript.
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Dr Lunsford is a consultant for and stockholder in Elekta AB. The other authors have no personal, financial, or institutional interest in any of the drugs, materials, or devices described in this article.
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Bin-Alamer, O., Alnefaie, N., Qedair, J. et al. Single session versus multisession stereotactic radiosurgery for the management of intracranial meningiomas: a systematic review and meta-analysis. J Neurooncol 161, 215–224 (2023). https://doi.org/10.1007/s11060-022-04112-6
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DOI: https://doi.org/10.1007/s11060-022-04112-6