title: Trigeminal Neuralgia Caused by Cerebellopontine Angle Arteriovenous Malformation Treated With Gamma Knife Radiosurgery.
abstract: Trigeminal neuralgia is a facial pain syndrome characterized as sudden onset and lightening-like sensation over somatosensorial branch(es) of fifth cranial nerve. Rarely, some underlying diseases or disorders could be diagnosed, such as multiple sclerosis, brain tumors, and vascular malformations. The authors present a 47-year-old man with trigeminal neuralgia over left V2 and V3 dermatomes. He had a previous transarterial embolization and long use of carbamazepine with partial response to treatment. Gamma knife radiosurgery (GKR) was planned. A marginal dose of 15 Gy was given to 50% isodose line. His pain was relieved by GKR in 1.5 years. Treatment of posterior fossa arteriovenous malformations causing trigeminal neuralgia, with GKR has a very limited use in the literature. It, however, is obvious that success rate as pain relief, in a very challenging field of functional neurosurgery, is satisfactory. Large series, however, are in need to make a more comprehensive statement about efficacy and safety of the procedure in these pathologies.
authors.affiliation: *Department of Neurosurgery, Hakkari State Hospital, Hakkari, Turkey †Department of Orthopaedic Surgery-Spine Center, University of California at San Francisco, San Francisco, CA ‡Department of Neurosurgery, Bahçeşehir University Medical School, Istanbul, Turkey.
authors.forename: Semra
authors.initials: S
authors.lastname: Işik
authors.forename: Murat Şakir
authors.initials: MŞ
authors.lastname: Ekşi
authors.forename: Baran
authors.initials: B
authors.lastname: Yilmaz
authors.forename: Zafer Orkun
authors.initials: ZO
authors.lastname: Toktaş
authors.forename: Akin
authors.initials: A
authors.lastname: Akakin
authors.forename: Türker
authors.initials: T
authors.lastname: Kiliç
mesh_terms: D018712:Analgesics, Non-Narcotic / Q000627:therapeutic use; D001164:Arteriovenous Fistula / Q000150:complications* / Q000601:surgery; D002220:Carbamazepine / Q000627:therapeutic use; D002530:Cerebellopontine Angle / Q000098:blood supply* / Q000601:surgery; D004621:Embolization, Therapeutic / Q000379:methods; D005500:Follow-Up Studies; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000150:complications* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009493:Neurosurgery / Q000379:methods; D016634:Radiosurgery / Q000379:methods*; D014276:Trigeminal Nerve / Q000601:surgery; D014277:Trigeminal Neuralgia / Q000209:etiology* / Q000601:surgery
chemical_list: D018712:Analgesics, Non-Narcotic; D002220:Carbamazepine