English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Objective: Many studies have shown favorable outcome of Gamma knife radiosurgery (GKRS) for vestibular schwannomas (VSs). However, there have been few studies which have shown the treatment result of cystic VSs (CVSs) for GKRS. The aim of this study was to confirm whether GKRS for CVSs continues to be safe and effective. Methods: The study population consisted 511 patients (172 males, 339 females) with VSs treated with GKRS between May 1990 and December 2013. Group 1 defined as cyst/tumor volume >30%, group 2 was cyst/tumor volume >50%, and group 3 was solid tumor or cyst/tumor volume ≤30%. To analyze factors that correlated with treatment outcomes, the following factors were assessed: tumor volume, cyst volume, tumor/cyst ratio, cyst type (single vs. multicystic), previous resection history, marginal radiation dose. Results: The median follow up period was 52 months (range, 12-110 months). Tumor progression in group 1 was 5 (18.5%), group 2 was 1 (11.1%) and group 3 was 31 (6.4%). In group 1, 2 patients underwent delayed microsurgery at 31 and 36 months after GKRS. Conclusion: In this study we found that GKRS for large CVS was associated with poor treatment outcome. Further study is needed to identify the mechanism of the tumor progression of CVS after GKRS

Treatment Outcome of Gamma Knife Radiosurgery of Vestibular Schwannomas with Cystic Component