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Published in: Acta Neurochirurgica 11/2008

01-11-2008 | Clinical Article

Giant olfactory groove meningioma: ophthalmological and cognitive outcome after bifrontal microsurgical approach

Authors: Roberto Gazzeri, Marcelo Galarza, Giovanni Gazzeri

Published in: Acta Neurochirurgica | Issue 11/2008

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Abstract

Object

Olfactory groove meningiomas arise in the midline along the dura of the cribriform plate and may reach a large size before producing symptoms. We conducted a retrospective study of patients with these lesions focused on pre- and post-operative investigations for ophthalmological, personality and cognitive disturbances.

Methods

The authors reviewed 36 patients with giant olfactory groove meningiomas surgically treated via a bifrontal approach. Ophthalmological evaluation included visual acuity, fundoscopy and visual fields while psychological evaluation included a Mini-Mental State Examination. Data was collected before, 1 and 12 months after surgery. Formal pre- and post-operative ophthalmological examinations discovered visual deficits in 55.5% of the patients. Within the first month after surgery, improvement of visual acuity and of visual field deficits was observed. In post-operative neuropsychological testing, higher mental functions showed improvement. The most frequent post-operative complication was persistent rhinorrhoea in two patients.

Conclusions

Results at longest follow up indicate that cognitive changes and visual deficits will improve in patients with giant olfactory groove meningiomas after a bifrontal approach, without additional neurological deficits.
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Metadata
Title
Giant olfactory groove meningioma: ophthalmological and cognitive outcome after bifrontal microsurgical approach
Authors
Roberto Gazzeri
Marcelo Galarza
Giovanni Gazzeri
Publication date
01-11-2008
Publisher
Springer Vienna
Published in
Acta Neurochirurgica / Issue 11/2008
Print ISSN: 0001-6268
Electronic ISSN: 0942-0940
DOI
https://doi.org/10.1007/s00701-008-0142-z

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