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<p>The present study was conducted to evaluate three modalities used to detect extraocular movement during endonasal endoscopic surgery for a skull base tumor to protect cranial nerves from damage; free-run electrooculography (EOG), piezoelectric sensor (PES), and triggered electromyography (t-EMG) monitoring. Twenty patients (8 males, 12 females; average age 61.8 years) treated for a skull base tumor at Nara Medical University from 2018 to 2021 were enrolled. The three modalities were assessed regarding detection of ocular movement during endoscopic endonasal surgery (EES) for a skull base tumor and the results compared. Oculomotor nerve detection by EOG, PES, and t-EMG was noted in 77.8%, 83.3%, and 33.3%, respectively, of the cases (<i>p</i> = 0.001), while abducent nerve detection was noted in 61.1%, 66.7%, and 16.7%, respectively, (<i>p</i> = 0.002), showing that PES has significantly greater sensitivity for detection of ocular movement. Gross total resection was achieved in nine (45%), near-total resection in three (15%), and partial resection in eight (40%) of the patients. To protect ocular movement function from damage during EES for a skull base tumor, the present findings indicate that among the three modalities tested, PES is compact and useful, and most safe for avoiding complications.</p>

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Usefulness of piezoelectric sensor device for monitoring extraocular movement during endoscopic endonasal surgery to remove skull base tumor

  • 期刊论文

  • 发表日期：

    2025年5月24日

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  • Kenta Nakase,
  • Fumihiko Nishimura,
  • Tsunenori Takatani,
  • Yasushi Motoyama,
  • Shohei Yokoyama,
  • Yasuhiro Takeshima,
  • Ryosuke Matsuda,
  • Ichiro Nakagawa,
  • Shuichi Yamada,
  • Young-Soo Park,
  • Hironobu Hayashi,
  • Masahiko Kawaguchi

摘要

The present study was conducted to evaluate three modalities used to detect extraocular movement during endonasal endoscopic surgery for a skull base tumor to protect cranial nerves from damage; free-run electrooculography (EOG), piezoelectric sensor (PES), and triggered electromyography (t-EMG) monitoring. Twenty patients (8 males, 12 females; average age 61.8 years) treated for a skull base tumor at Nara Medical University from 2018 to 2021 were enrolled. The three modalities were assessed regarding detection of ocular movement during endoscopic endonasal surgery (EES) for a skull base tumor and the results compared. Oculomotor nerve detection by EOG, PES, and t-EMG was noted in 77.8%, 83.3%, and 33.3%, respectively, of the cases (p = 0.001), while abducent nerve detection was noted in 61.1%, 66.7%, and 16.7%, respectively, (p = 0.002), showing that PES has significantly greater sensitivity for detection of ocular movement. Gross total resection was achieved in nine (45%), near-total resection in three (15%), and partial resection in eight (40%) of the patients. To protect ocular movement function from damage during EES for a skull base tumor, the present findings indicate that among the three modalities tested, PES is compact and useful, and most safe for avoiding complications.