Risks associated with ventriculomegaly and symptomatic communicating hydrocephalus following stereotactic radiosurgery for vestibular schwannoma.
Megan M J Bauman, Samantha M Bouchal, Ramin A Morshed et al.
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In 30 seconds
This study investigated the risk factors for nonobstructive ventricular enlargement and symptomatic communicating hydrocephalus after stereotactic radiosurgery (SRS) for vestibular schwannomas (VS) in a cohort of 634 patients. The analysis revealed that 5% of patients experienced hydrocephalus post-SRS, with older age, larger tumor volume, and tumor growth being significant risk factors for complications requiring ventriculoperitoneal shunt placement.
Key findings
- 3.6% of patients experienced nonobstructive ventricular enlargement after SRS treatment.
- The incidence of symptomatic hydrocephalus requiring a VP shunt was 4% in a subanalysis of 7081 patients.
- 92% of patients with post-SRS ventriculomegaly required shunt placement.
- Older age (≥ 65 years) and larger SRS target volume were associated with increased risk of complications.
Why it matters
Understanding the risk factors for post-SRS complications is crucial for clinicians to identify patients who may require closer monitoring and intervention, potentially improving patient outcomes following treatment for vestibular schwannomas.