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Intraoperative Frontal Alpha-Band Power Correlates with Preoperative Neurocognitive Function in Older Adults.

Publication ,  Journal Article
Giattino, CM; Gardner, JE; Sbahi, FM; Roberts, KC; Cooter, M; Moretti, E; Browndyke, JN; Mathew, JP; Woldorff, MG; Berger, M; MADCO-PC Investigators,
Published in: Front Syst Neurosci
2017

Each year over 16 million older Americans undergo general anesthesia for surgery, and up to 40% develop postoperative delirium and/or cognitive dysfunction (POCD). Delirium and POCD are each associated with decreased quality of life, early retirement, increased 1-year mortality, and long-term cognitive decline. Multiple investigators have thus suggested that anesthesia and surgery place severe stress on the aging brain, and that patients with less ability to withstand this stress will be at increased risk for developing postoperative delirium and POCD. Delirium and POCD risk are increased in patients with lower preoperative cognitive function, yet preoperative cognitive function is not routinely assessed, and no intraoperative physiological predictors have been found that correlate with lower preoperative cognitive function. Since general anesthesia causes alpha-band (8-12 Hz) electroencephalogram (EEG) power to decrease occipitally and increase frontally (known as "anteriorization"), and anesthetic-induced frontal alpha power is reduced in older adults, we hypothesized that lower intraoperative frontal alpha power might correlate with lower preoperative cognitive function. Here, we provide evidence that such a correlation exists, suggesting that lower intraoperative frontal alpha power could be used as a physiological marker to identify older adults with lower preoperative cognitive function. Lower intraoperative frontal alpha power could thus be used to target these at-risk patients for possible therapeutic interventions to help prevent postoperative delirium and POCD, or for increased postoperative monitoring and follow-up. More generally, these results suggest that understanding interindividual differences in how the brain responds to anesthetic drugs can be used as a probe of neurocognitive function (and dysfunction), and might be a useful measure of neurocognitive function in older adults.

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Published In

Front Syst Neurosci

DOI

ISSN

1662-5137

Publication Date

2017

Volume

11

Start / End Page

24

Location

Switzerland

Related Subject Headings

  • 3209 Neurosciences
  • 3109 Zoology
  • 3101 Biochemistry and cell biology
  • 1116 Medical Physiology
  • 1109 Neurosciences
  • 0606 Physiology
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Giattino, C. M., Gardner, J. E., Sbahi, F. M., Roberts, K. C., Cooter, M., Moretti, E., … MADCO-PC Investigators, . (2017). Intraoperative Frontal Alpha-Band Power Correlates with Preoperative Neurocognitive Function in Older Adults. Front Syst Neurosci, 11, 24. https://doi.org/10.3389/fnsys.2017.00024
Giattino, Charles M., Jacob E. Gardner, Faris M. Sbahi, Kenneth C. Roberts, Mary Cooter, Eugene Moretti, Jeffrey N. Browndyke, et al. “Intraoperative Frontal Alpha-Band Power Correlates with Preoperative Neurocognitive Function in Older Adults.Front Syst Neurosci 11 (2017): 24. https://doi.org/10.3389/fnsys.2017.00024.
Giattino CM, Gardner JE, Sbahi FM, Roberts KC, Cooter M, Moretti E, et al. Intraoperative Frontal Alpha-Band Power Correlates with Preoperative Neurocognitive Function in Older Adults. Front Syst Neurosci. 2017;11:24.
Giattino, Charles M., et al. “Intraoperative Frontal Alpha-Band Power Correlates with Preoperative Neurocognitive Function in Older Adults.Front Syst Neurosci, vol. 11, 2017, p. 24. Pubmed, doi:10.3389/fnsys.2017.00024.
Giattino CM, Gardner JE, Sbahi FM, Roberts KC, Cooter M, Moretti E, Browndyke JN, Mathew JP, Woldorff MG, Berger M, MADCO-PC Investigators. Intraoperative Frontal Alpha-Band Power Correlates with Preoperative Neurocognitive Function in Older Adults. Front Syst Neurosci. 2017;11:24.

Published In

Front Syst Neurosci

DOI

ISSN

1662-5137

Publication Date

2017

Volume

11

Start / End Page

24

Location

Switzerland

Related Subject Headings

  • 3209 Neurosciences
  • 3109 Zoology
  • 3101 Biochemistry and cell biology
  • 1116 Medical Physiology
  • 1109 Neurosciences
  • 0606 Physiology