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Intraoperative monitoring of cortico-cortical evoked potentials of the frontal aslant tract in a patient with oligodendroglioma

  • Yang, Ha-rin (Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Ra, Young-Shin (Department of Neurosurgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Koo, Yong Seo (Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine)
  • Received : 2021.11.26
  • Accepted : 2022.01.05
  • Published : 2022.04.30

Abstract

The newly identified frontal aslant tract (FAT) that connects the posterior Broca's area to the supplementary motor area is known to be involved in speech and language functions. We successfully intraoperatively monitored FAT using cortico-cortical evoked potentials generated by single-pulse electrical cortical stimulation in a patient with oligodendroglioma.

Keywords

Acknowledgement

We want to thank Se Keun Oh for his help in preparing the figures. This study was supported by 2014 short training funds of The Korean Society of Clinical Neurophysiology, two grants (2020IE0013 & 2022IE0001) from the Asan Institute for Life Sciences, Asan Medical Center, Seoul, Korea, and a grant from the Korean EEG study Group in 2020.

References

  1. Kim SM, Kim SH, Seo DW, Lee KW. Intraoperative neurophysiologic monitoring: basic principles and recent update. J Korean Med Sci 2013;28:1261-1269. https://doi.org/10.3346/jkms.2013.28.9.1261
  2. Matsumoto R, Nair DR, LaPresto E, Najm I, Bingaman W, Shibasaki H, et al. Functional connectivity in the human language system: a cortico-cortical evoked potential study. Brain 2004;127:2316-2330. https://doi.org/10.1093/brain/awh246
  3. Fujii M, Maesawa S, Motomura K, Futamura M, Hayashi Y, Koba I, et al. Intraoperative subcortical mapping of a language-associated deep frontal tract connecting the superior frontal gyrus to Broca's area in the dominant hemisphere of patients with glioma. J Neurosurg 2015;122:1390-1396. https://doi.org/10.3171/2014.10.JNS14945
  4. Ookawa S, Enatsu R, Kanno A, Ochi S, Akiyama Y, Kobayashi T, et al. Frontal fibers connecting the superior frontal gyrus to Broca area: a corticocortical evoked potential study. World Neurosurg 2017;107:239-248. https://doi.org/10.1016/j.wneu.2017.07.166
  5. La Corte E, Eldahaby D, Greco E, Aquino D, Bertolini G, Levi V, et al. The frontal aslant tract: a systematic review for neurosurgical applications. Front Neurol 2021;12:641586. https://doi.org/10.3389/fneur.2021.641586
  6. Yamao Y, Matsumoto R, Kikuchi T, Yoshida K, Kunieda T, Miyamoto S. Intraoperative brain mapping by cortico-cortical evoked potential. Front Hum Neurosci 2021;15:635453. https://doi.org/10.3389/fnhum.2021.635453