Mask-based Gamma Knife radiation worked well for vestibular schwannoma
Original title: Frameless gamma knife stereotactic radiosurgery for over two hundred vestibular schwannoma patients - a single institution experience.
How far along is this research?
- Lab cells
- Animals
- Review
- Tested in people
This was tested in people. That is the most reliable kind of research we share.
This treatment is already used in hospitals today, and this report is a look back at patients who got it.
The short version
A hospital looked back at its patients and found that Gamma Knife radiation given with a mask, instead of a head frame, kept most of these tumors from growing.
What was studied. Doctors at one hospital reviewed 206 people with a vestibular schwannoma on one side, treated between 2017 and 2024. All had Gamma Knife radiation held still by a mask instead of a frame screwed to the skull. Scans were available for 112 of them.
What they found. Tumors were under control in 97.1% of patients at 1 year and 93.7% at 3 years. At the last check, 75.9% had tumors that were stable or smaller, and 7 patients (6.3%) had tumors that grew. Among the patients who could still hear well before treatment, 40 had hearing tests afterward, and useful hearing was kept in 71.1% at 1 year and 33.8% at 3 years.
What this means, and what it doesn't
What it could mean: If you are offered Gamma Knife for this kind of tumor, the mask may be an option instead of a metal frame fixed to your head. The doctors say tumor results looked similar to older frame-based reports. Hearing loss over time is still a real risk with this treatment.
What it doesn't mean: This is not a cure, and it is not a new treatment. Gamma Knife is already used for these tumors. This was a look back at records at one hospital, not a study that compared masks against frames head to head. The hearing numbers came from a small group, and the 3-year hearing data was limited. The authors themselves say better planned studies are still needed.
Source: PubMed, July 28, 2026 · Read the original
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