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Published on: May 8, 2018
Limited Cerebral Metastases in NSCLC: A Literature Review of SRS Versus Whole-brain Radiotherapy
Maria Grenzelia1, Anna Zygogianni1, Dimitra Grapsa2
1Radiation Oncology Unit, 1st Department of Radiology, Medical School, Aretaieion Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Background/Aim:
Brain metastases (BMs) are common in patients with non-small cell lung cancer (NSCLC). Whole-brain radiotherapy (WBRT) with or without corticosteroid use has historically been the first choice for most patients with BMs despite its negative impact on cognition and quality of life. However, stereotactic radiosurgery (SRS) has emerged as a safe and effective treatment and has been established for patients with limited, inoperable BMs. SRS and WBRT are either used separately or together, in an attempt to achieve the best possible local and distal control rates and even improve overall survival. A number of phase III trials have focused on answering the question which modality - SRS, WBRT or both - can achieve the best possible results. In this review, we present the existing data regarding the use of SRS compared with WBRT and their combination for NSCLC patients with limited, non-operable BMs.
Materials And Methods:
A literature review was performed in PubMed, Medline, and the Cochrane Library databases from 1995 up to 2021. Principles outlined in the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) statement were followed.
Results:
We identified seven randomised control trials (RCTs) that compared WBRT with WBRT plus SRS boost and four RCTs that compared SRS alone with SRS plus WBRT.
Conclusion:
Overall, addition of WBRT to SRS did not improve survival but had a positive effect on locoregional control.
