Prediction of recovery from supplementary motor area syndrome after brain tumor surgery: preoperative diffusion tensor tractography analysis and postoperative neurological clinical course

Neurosurgical Focus
Kazunori OdaAkio Morita

Abstract

OBJECTIVE Previous studies have suggested a correlation between interhemispheric sensorimotor networks and recovery from supplementary motor area (SMA) syndrome. In the present study, the authors examined the hypothesis that interhemispheric connectivity of the primary motor cortex in one hemisphere with the contralateral SMA may be important in the recovery from SMA syndrome. Further, they posited that motor cortical fiber connectivity with the SMA is related to the severity of SMA syndrome. METHODS Patients referred to the authors' neurological surgery department were retrospectively analyzed for this study. All patients with tumors involving the unilateral SMA region, without involvement of the primary motor area, and diagnosed with SMA syndrome in the postoperative period were eligible for inclusion. Preoperative diffusion tensor imaging tractography (DTT) was used to examine the number of fiber tracts (NFidx) connecting the contralateral SMA to the ipsilateral primary motor area via the corpus callosum. Complete neurological examination had been performed in all patients in the pre- and postoperative periods. All patients were divided into two groups: those who recovered from SMA syndrome in ≤ 7 days (early recovery group)...Continue Reading

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Citations

Nov 21, 2018·Neurosurgical Focus·Lorenzo Nigro
Mar 17, 2020·Journal of Neurological Surgery. Part A, Central European Neurosurgery·Tim WendeJürgen Meixensberger
Feb 11, 2020·Frontiers in Neuroscience·Shun YaoYanmei Tie
Nov 11, 2019·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Nardin SamuelMichael D Taylor
Jul 2, 2021·Journal of Neuro-oncology·Natalie L VoetsPuneet Plaha

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