Summary
Presentation of the experiences with 254 acoustic neurinomas, treated at the Karolinska Gamma Knife Center from 1969 to 1991, with a minimum follow-up of 12 months.
Early loss of contrast enhancement on CT or MRI was seen in 70%. Unilateral tumours showed size decrease in 55%, no change in 33%, and increase in 12%. NF 2 tumours had decrease in 33%, no change in 43%, and increase in 24%. Some degree of facial weakness was seen after 17% of treatments, but always with later improvement of function. The incidence of trigeminal neuropathy was 19%. Preservation of hearing was 77%.
Gamma knife treatment is as efficient as microsurgery, but without risk of infection, bleeding or CSF leak. It requires no hospitalisation. The patient can go back to work after a few days. It therefore should be offered as an alternative to every acoustic neurinoma patient.
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© 1993 Springer-Verlag Wien
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Norén, G., Greitz, D., Hirsch, A., Lax, I. (1993). Gamma Knife Surgery in Acoustic Tumours. In: Meyerson, B.A., Broggi, G., Martin-Rodriguez, J., Ostertag, C., Sindou, M. (eds) Advances in Stereotactic and Functional Neurosurgery 10. Acta Neurochirurgica, vol 58. Springer, Vienna. https://doi.org/10.1007/978-3-7091-9297-9_24
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DOI: https://doi.org/10.1007/978-3-7091-9297-9_24
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