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Predicting sleepiness during an awake craniotomy.

Chihiro Itoi1, Kentaro Hiromitsu1, Shoko Saito1

  • 1Department of Literature, Graduate School of Chuo University, 742-1 Higashi-nakano, Hachioji, Tokyo 192-0393, Japan.

Clinical Neurology and Neurosurgery
|November 17, 2015
PubMed
Summary
This summary is machine-generated.

Preoperative cognitive abilities, particularly construction and calculation skills, predict sleepiness during awake craniotomy. Patients experiencing sleepiness during surgery often have prior parietal lobe dysfunction.

Keywords:
Awake craniotomyBrain tumorCOGNISTATCognitionSleepiness

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Area of Science:

  • Neurosurgery
  • Neuropsychology
  • Cognitive Neuroscience

Background:

  • Awake craniotomy is a key neurosurgical procedure.
  • Patient cooperation during surgery is vital for success.
  • Sleepiness during awake craniotomy can impede surgical progress.

Purpose of the Study:

  • To determine if preoperative neuropsychological status predicts intraoperative sleepiness.
  • To identify cognitive functions associated with sleepiness during awake craniotomy.

Main Methods:

  • Thirty-seven brain tumor patients undergoing awake craniotomy were studied.
  • Preoperative cognitive assessments were conducted.
  • Intraoperative cognitive task performance and patient attitude were monitored by neuropsychologists.

Main Results:

  • Construction and calculation abilities showed a moderate correlation with intraoperative sleepiness.
  • Preoperative cognitive functioning was linked to intraoperative sleepiness.

Conclusions:

  • Preoperative cognitive status is a significant predictor of sleepiness during awake craniotomy.
  • Patients exhibiting sleepiness may have underlying parietal lobe functional deficits.