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A Unified Methodological Framework for Vestibular Schwannoma Research
Published on: June 20, 2017
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Radiotherapy for Growing Vestibular Schwannomas
Mantegh Sethi1, Shravan Gowrishankar2, James Tysome2
1Department of Otolaryngology, University Hospitals Birmingham, Birmingham, England.
JAMA Otolaryngology-- Head & Neck Surgery
|September 4, 2025
Summary
Radiotherapy achieved a 10-year tumor control rate of 76.1% in growing vestibular schwannomas (VS). This study provides crucial data for managing this specific patient group, informing expectations and future research.
Area of Science:
- Neurosurgery
- Radiation Oncology
- Oncology
Background:
- Vestibular schwannomas (VS) are tumors that grow over time.
- Limited data exists on radiotherapy outcomes for actively growing VS.
- There is a need for specific data on tumor control rates in this growing VS population.
Purpose of the Study:
- To estimate tumor control rates in radiologically growing vestibular schwannomas (VS) treated with first-line radiotherapy.
- To provide data for a rarely studied subgroup of VS patients.
- To inform treatment expectations and guide future research in growing VS.
Main Methods:
- International, multicenter cohort study of growing unilateral VS treated with first-line radiotherapy (2000-2023).
- Prospectively collected data from 8 tertiary referral skull base units.
- Kaplan-Meier analysis used to estimate tumor control rates based on predefined growth criteria.
Main Results:
- 1883 patients with growing VS were included.
- The 10-year tumor control rate was 76.1% using the primary definition (≥3 mm growth within 2 years, then ≥2 mm).
- Tumor size and location did not significantly impact treatment failure.
Conclusions:
- First-line radiotherapy demonstrates significant tumor control in growing vestibular schwannomas.
- The study provides specific outcomes for this distinct VS subgroup.
- Findings support radiotherapy as an effective treatment option for growing VS, offering valuable insights for patient management.
