Effectiveness and Safety of Robotic Radiosurgery for Optic Nerve Sheath Meningiomas: A Single Institution Series.
Cyberknife
hypofractionation
multisession
optic nerve sheath meningioma
robotic radiosurgery
stereotactic radiosurgery
Journal
Cancers
ISSN: 2072-6694
Titre abrégé: Cancers (Basel)
Pays: Switzerland
ID NLM: 101526829
Informations de publication
Date de publication:
30 Apr 2021
30 Apr 2021
Historique:
received:
12
03
2021
revised:
22
04
2021
accepted:
26
04
2021
entrez:
5
5
2021
pubmed:
6
5
2021
medline:
6
5
2021
Statut:
epublish
Résumé
The role of robotic radiosurgery (RRS) in the treatment of optic nerve sheath meningiomas (ONSM) remains controversial and it is only performed in specialized institutions due to tight dose constraints. We evaluated the effectiveness and safety of RRS in the management of ONSM. Twenty-five patients with 27 ONSM lesions who underwent RRS using the Cyberknife (CK) system were retrospectively analyzed (median age, 47.9 years; 84.0% women). Multisession RRS was used with 4-5 fractions with a cumulative dose of 20.0-25.0 Gy in 84.0% of patients and a single fraction at a dose of 14.0-15.0 Gy in 16% of patients. Prior to RRS, seven (28%) patients experienced blindness on the lesion side. In those patients with preserved vision prior to radiosurgery, the visual acuity remained the same in 90.0% and improved in 10.0% of the patients. Overall local tumor control was 96.0% (mean follow-up period; 37.4 ± 27.2 months). Neither patient age, previous surgery, or the period from the initial diagnosis to RRS showed a dependency on visual acuity before or after radiosurgery. RRS is a safe and effective treatment for the management of ONSM. Hypofractionation of radiosurgery in patients with preserved vision before CK treatment results in stable or improved vision.
Identifiants
pubmed: 33946405
pii: cancers13092165
doi: 10.3390/cancers13092165
pmc: PMC8125730
pii:
doi:
Types de publication
Journal Article
Langues
eng
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