論文

2021年7月12日

A focal brain-cooling device as an alternative to electrical stimulation for language mapping during awake craniotomy: patient series

Journal of Neurosurgery: Case Lessons
  • Sadahiro Nomura
  • ,
  • Takao Inoue
  • ,
  • Hirochika Imoto
  • ,
  • Hirokazu Sadahiro
  • ,
  • Kazutaka Sugimoto
  • ,
  • Yuichi Maruta
  • ,
  • Hideyuki Ishihara
  • ,
  • Michiyasu Suzuki

2
2
記述言語
掲載種別
研究論文(学術雑誌)
DOI
10.3171/case21131
出版者・発行元
Journal of Neurosurgery Publishing Group (JNSPG)

<sec>
<title>BACKGROUND</title>
Functional mapping in awake craniotomy has the potential risk of electrical stimulation-related seizure. The authors have developed a novel mapping technique using a brain-cooling device. The cooling probe is cylindrical in shape with a thermoelectric cooling plate (10 × 10 mm) at the bottom. A proportional integration and differentiation-controlled system adjusts the temperature accurately (Japan patent no. P5688666). The authors used it in two patients with glioblastoma. Broca’s area was identified by electrical stimulation, and then the cooling probe set at 5°C was attempted on it.


</sec>
<sec>
<title>OBSERVATIONS</title>
Electrocorticogram was suppressed, and the temperature dropped to 8°C in 50 sec. A positive aphasic reaction was reproduced on Broca’s area at a latency of 7 sec. A negative reaction appeared on the adjacent cortices despite the temperature decrease. The sensitivity and specificity were 60% and 100%, respectively. No seizures or other adverse events related to the cooling were recognized, and no histological damage to the cooled cortex was observed.


</sec>
<sec>
<title>LESSONS</title>
The cooling probe suppressed topographical brain function selectively and reversibly. Awake functional mapping based on thermal neuromodulation technology could substitute or compensate for the conventional electrical mapping.


</sec>

リンク情報
DOI
https://doi.org/10.3171/case21131
URL
https://thejns.org/view/journals/j-neurosurg-case-lessons/2/2/article-CASE21131.xml
URL
https://thejns.org/downloadpdf/journals/j-neurosurg-case-lessons/2/2/article-CASE21131.xml
ID情報
  • DOI : 10.3171/case21131
  • eISSN : 2694-1902

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