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Related Experiment Videos

Brain death: practicability of evoked potentials.

R Firsching1, R A Frowein, S Wilhelms

  • 1Neurosurgical Clinic, University of Cologne, Fed. Rep. of Germany.

Neurosurgical Review
|January 1, 1992
PubMed
Summary
This summary is machine-generated.

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Brain stem auditory evoked potentials (BAEP) can confirm brain death in 31% of patients when abolished stepwise. This safe, acceptable test is most feasible in centers routinely analyzing BAEP.

Area of Science:

  • Neurology
  • Neurophysiology

Background:

  • Brain death diagnosis requires reliable confirmatory tests.
  • Somatosensory and visual evoked potentials have limited value in confirming brain death.

Purpose of the Study:

  • To evaluate the utility of multimodally evoked potentials, specifically brain stem auditory evoked potentials (BAEP), in confirming brain death.

Main Methods:

  • Registered multimodally evoked potentials in 85 patients meeting brain death criteria.
  • Focused on the stepwise abolition of brain stem auditory evoked potentials (BAEP).

Main Results:

  • Stepwise abolition of BAEP confirmed brain death in 26 out of 85 patients (31%).
  • Sequential BAEP was not feasible in most cases due to absent initial responses or patient apnea.

Related Experiment Videos

  • Preservation of bilateral wave I was considered significant, similar to BAEP abolition.

    • Conclusions:

    • Registration of BAEP abolition is a safe and acceptable confirmatory test for brain death.
    • BAEP analysis is most feasible in institutions with routine BAEP analysis.
    • BAEPs are relevant for brain death declaration in approximately 30% of patients.