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Chapter 15 - Coma

from Part II - Case-Based Approach to Specific Conditions

Published online by Cambridge University Press:  22 February 2024

Neville M. Jadeja
Affiliation:
University of Massachusetts Medical School
Kyle C. Rossi
Affiliation:
University of Massachusetts Medical School
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Summary

This chapter uses a case-based approach to describe electrographic patterns associated with coma. These are rare and, though non-specific, may suggest particular underlying etiologies. The electrographic pattern of extreme delta brush (EDB) may be seen with anti-NMDA receptor encephalitis. Alpha-coma is a pattern of continuous unreactive alpha or alpha-theta range activity that may be seen in coma after cardiac arrest or in those with pontine injury. It may resemble normal wakefulness. Spindle-coma and beta-coma are also described. Electrocerebral inactivity (ECI) is the absence of all non-artifactual electrical activity on an EEG, when recording using minimal specified technical standards in patients with cerebral death (brain death).

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  • Coma
  • Neville M. Jadeja, University of Massachusetts Medical School, Kyle C. Rossi, University of Massachusetts Medical School
  • Book: Critical Care EEG Basics
  • Online publication: 22 February 2024
  • Chapter DOI: https://doi.org/10.1017/9781009261159.018
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  • Coma
  • Neville M. Jadeja, University of Massachusetts Medical School, Kyle C. Rossi, University of Massachusetts Medical School
  • Book: Critical Care EEG Basics
  • Online publication: 22 February 2024
  • Chapter DOI: https://doi.org/10.1017/9781009261159.018
Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Coma
  • Neville M. Jadeja, University of Massachusetts Medical School, Kyle C. Rossi, University of Massachusetts Medical School
  • Book: Critical Care EEG Basics
  • Online publication: 22 February 2024
  • Chapter DOI: https://doi.org/10.1017/9781009261159.018
Available formats
×