Summary
Among 64 patients with hemifacial spasm (HFS) and 60 with trigeminal neuralgia (TN) treated by microvascular decompression (MVD), repeated MVD performed on 3 cases with HFS resulted in the absence of spasm in all cases. In 7 cases with TN, this technique resulted in complete remission in 2, recurrence in 3, and no pain relief in 2 cases. MVD was more effective on HFS than on TN in repeated procedures as well as for initial treatment. The cause of recurrence of HFS was attributed to the inadequate cushion effect of muscle as a prosthesis, while that for TN was suspected to be related more to post-operative fibrotic adhesions formed around the fifth nerve.
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Yamaki, T., Hashi, K., Niwa, J. et al. Results of reoperation for failed microvascular decompression. Acta neurochir 115, 1–7 (1992). https://doi.org/10.1007/BF01400583
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DOI: https://doi.org/10.1007/BF01400583