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Related Experiment Videos

Brain death criteria: third generation.

R A Frowein1, E Hamel

  • 1Department of Neurosurgery, University of Cologne.

Neurosurgical Review
|January 1, 1989
PubMed
Summary
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The disappearance of evoked potentials (EP-abolition) is the best new test for determining brain death, shortening observation times. This method, along with electrocerebral silence (ECS) and cerebral circulation arrest (CCA), aids in brain death diagnosis.

Area of Science:

  • Neurology
  • Critical Care Medicine
  • Forensic Medicine

Background:

  • Establishing brain death requires reliable diagnostic criteria.
  • Current criteria involve observation periods that can be lengthy.
  • Advancements in neurophysiology offer potential for more rapid diagnosis.

Purpose of the Study:

  • To evaluate the efficacy of new diagnostic tests for brain death determination.
  • To compare the utility of evoked potentials abolition (EP-abolition) with existing methods.
  • To assess the impact of lesion location (supratentorial vs. infratentorial) on diagnostic test performance.

Main Methods:

  • Review of third-generation brain death criteria.
  • Analysis of electrocerebral silence (ECS).

Related Experiment Videos

  • Assessment of evoked potentials abolition (EP-abolition).
  • Consideration of cerebral circulation arrest (CCA).

    • Main Results:

    • EP-abolition is considered the most effective among the newer diagnostic tests.
    • ECS, EP-abolition, and CCA can shorten the required observation time for brain death determination.
    • Careful consideration of supratentorial versus infratentorial lesions is crucial.
    • Apnea may precede ECS by several hours in cases of infratentorial lesions.

    Conclusions:

    • Evoked potentials abolition represents a significant advancement in brain death diagnostics.
    • The combined use of ECS, EP-abolition, and CCA allows for expedited brain death determination.
    • Diagnostic protocols must account for lesion topography to ensure accuracy, especially in infratentorial cases.