Vol 47, No 4 (2013)

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Meningiomas of the upper and middle part of the clivus and surrounding structures: early and long-term outcome

Piotr Ładziński1, Henryk Majchrzak1, Wojciech Kaspera1, Mariusz Maliszewski1, Krzysztof Majchrzak1, Michał Tymowski1, Piotr Adamczyk1, Bartłomiej Błaszczyk1, Aleksandra Slaska-Kaspera2
DOI: 10.5114/ninp.2013.36758
Neurol Neurochir Pol 2013;47(4):332-344.

Abstract

Background and purpose

Meningiomas of the upper and middle parts of the clivus and surrounding structures are removed using petrosal approaches: anterior, posterior, combined and complete. The purpose of this study is to show the results of treatment of these meningiomas and to present our interpretation of the treatment strategy.

Material and methods

Twenty-six patients (17 women, 9 men) were included in the study. The neurological status of the patients was assessed before and after surgery as well as at the conclusion of the treatment. The following measurements and data were collected and recorded: approximate volume of the treated lesion, its relation to large blood vessels, cranial nerves and the brainstem, as well as tumour consistency and vascularisation.

Results

Symptoms duration ranged from 1 to 60 months (median: 16 months). In 57.7% of patients, imbalance was the predominant sign. Less frequent symptoms were: headaches, dysacusis and hemiparesis. Approximate volumes of the tumours ranged from 4 to 65 mL (mean: 32 mL). Total or subtotal resection was achieved in 73.1% of patients. The patients’ performance improved postoperatively in 34.5%, remained unchanged in 46.2% and deteriorated in 11.5% of patients. Two (7.8%) patients died after the surgery.

Conclusions

The use of petrosal approaches in the surgical treatment of meningiomas of the upper and middle parts of the clivus and the surrounding structures facilitates good or at least satisfactory neurological outcome with a high proportion of complete resections and relatively low mortality.

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Neurologia i Neurochirurgia Polska