Yonsei Med J.  1985 Jun;26(1):29-34. 10.3349/ymj.1985.26.1.29.

Brainstem Auditory Evoked Potentials in Acute Carbon Monoxide Poisoning

• Choi IS

• KMID: 692988
• DOI: http://doi.org/10.3349/ymj.1985.26.1.29

Abstract

Of 32 cases suffering from acute carbon monoxide (CO) poisoning brainstem auditory evoked potential (BAEP) abnormalities were exhibited in 8 cases. the abnormalities of BAEPs could be divided into two patterns: a peripheral pattern (6 cases) of prolongation of latency to wave 1 without prolongation of interpeak latency, and a central pattern (2 cases) of prolongation of latencies to all waves and interpeak latencies. The indicence of BAEP abnormality tended to increase in accordance with an unconscious duration of more than 24 hours; during acute CO poisoning. A BAEP abnormality exhibiting a peripheral pattern usually returned to normal within one month after anoxia, but cases showing central pattern of BAEP abnormality died during acute anoxic insult due to the possible involvement of the brainstem. Thus, BAEPs can be used for evaluating the functional intergrity of the auditory pathways and for providing prognostic values in acute CO poisoning.

Keyword

Acute carbon monoxide poisoning; Brainstem auditory evoked potential

MeSH Terms

Acute Disease
Adolescent
Adult
Aged
Basal Ganglia/radiography
Brain Stem/physiopathology*
Carbon Monoxide Poisoning/physiopathology*
Evoked Potentials, Auditory*
Female
Human
Male
Middle Age
Tomography, X-Ray Computed