Intracochlear hemorrhage after gamma knife radiosurgery

dc.contributor.authorFranco-Vidal V.
dc.contributor.authorSongu M.
dc.contributor.authorBlanchet H.
dc.contributor.authorBarreau X.
dc.contributor.authorDarrouzet V.
dc.date.accessioned2024-07-22T08:23:01Z
dc.date.available2024-07-22T08:23:01Z
dc.date.issued2007
dc.description.abstractPURPOSE: To describe an acute complication after gamma knife stereotactic radiosurgery (GKRS) for vestibular schwannoma (VS) in a neurofibromatosis type 2 (NF2) patient. STUDY DESIGN: Case report. SETTING: Tertiary care center. PATIENT: A 20-year-old man, who had bilateral VS and was having right-sided profound deafness, underwent GKRS for a 2-cm left-sided VS in an attempt to preserve his only hearing ear. He received a margin dose of 13 Gy to the 50% isodose line. Twenty-four hours after treatment, he presented with spinning vertigo, left-sided dead ear, and ipsilateral mild facial paralysis (House-Brackmann grade 3). RESULTS: Magnetic resonance imaging demonstrated an intracochlear hemorrhage at the level of the basal turn of the left cochlea. Hearing did not recover, and the patient had to resort to lip reading. The facial paralysis regressed completely after 3 months. CONCLUSION: Many cases of hemorrhage caused by GKRS have previously been reported, but all were related to meningiomas or brain metastases. Because the patient had no coagulation defect, sign of trauma, or any history of infection, the hemorrhage might have been caused by a direct thermal effect on the endothelial cells or to an immediate tumoral swelling, inducing an increase in intravascular outflow resistance and leading to venous obliteration. To our knowledge, this is the first report of acute intracochlear hemorrhage after GKRS for VS. © 2007 Otology & Neurotology, Inc.
dc.identifier.DOI-ID10.1097/01.mao.0000244360.57379.d4
dc.identifier.issn15374505
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/19348
dc.language.isoEnglish
dc.subjectAdult
dc.subjectAudiometry, Pure-Tone
dc.subjectCochlear Diseases
dc.subjectDeafness
dc.subjectFacial Paralysis
dc.subjectHemorrhage
dc.subjectHumans
dc.subjectMagnetic Resonance Imaging
dc.subjectMale
dc.subjectNeurofibromatosis 2
dc.subjectRadiosurgery
dc.subjectacoustic neurinoma
dc.subjectadult
dc.subjectarticle
dc.subjectcase report
dc.subjectclinical feature
dc.subjectcochlea blood flow
dc.subjectdisease course
dc.subjectfacial nerve paralysis
dc.subjectfollow up
dc.subjectgamma knife radiosurgery
dc.subjecthearing loss
dc.subjecthuman
dc.subjectmale
dc.subjectneurofibromatosis
dc.subjectnuclear magnetic resonance imaging
dc.subjectpostoperative hemorrhage
dc.subjectpriority journal
dc.subjectspeech therapy
dc.subjecttreatment outcome
dc.titleIntracochlear hemorrhage after gamma knife radiosurgery
dc.typeArticle

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