Intraoperative neuromonitoring of the visual pathway in asleep neuro-oncology surgery
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Authors
Soumpasis, Christos
Díaz-Baamonde, Alba
Ghimire, Prajwal
Baig Mirza, Asfand
Borri, Marco
Jarosz, Josef
Gullan, Richard
Ashkan, Keyoumars
Bhangoo, Ranjeev
Vergani, Francesco
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Issue Date
2023
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Article
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Abstract
Brain tumour surgery in visual eloquent areas poses significant challenges to neurosurgeons and has reported inconsistent results. This is a single-centre prospective cohort study of patients admitted for asleep surgery of intra-axial lesions in visual eloquent areas. Demographic and clinical information, data from tractography and visual evoked potentials (VEPs) monitoring were recorded and correlated with visual outcomes. Thirty-nine patients were included (20 females, 19 males; mean age 52.51 ± 14.08 years). Diffuse intrinsic glioma was noted in 61.54% of patients. There was even distribution between the temporal, occipital and parietal lobes, while 55.26% were right hemispheric lesions. Postoperatively, 74.4% remained stable in terms of visual function, 23.1% deteriorated and 2.6% improved. The tumour infiltration of the optic radiation on tractography was significantly related to the visual field deficit after surgery (
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Journal
Cancers
Volume
15
Issue
15