Summary
Complete cerebral ischemia lasting 20 and 30 min was produced in dog brains. Before and after complete ischemia early and middle latency auditory evoked potentials were recorded simultaneously. In all cases of complete ischemia for 30 min amplitudes of evoked potentials were diminished during the reperfusion period of 8 to 12 hours. In some cases evoked potentials reappeared only temporarily. After complete ischemia of 20 min duration, the amplitude of evoked potentials varied within a wide range. They could reach nearly normal values.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Hirsch H.: Recovery of the electrocorticogram after incomplete and complete ischaemia of the brain. Acta Neurochir. 6: 147–158, 1982
Klug N.: Brain stem auditory evoked potentials in syndromes of decerebration, the bulbar syndrome and in central death. J. Neurol. 227: 219–228, 1982
MacKay A.R., Hosobuchi Y., Williston J.S., Jewett D.: Brain stem auditory evoked responses and brain stem compression. Neurosurg. 6: 632–638, 1980
Nagao S., P. Roccaforte, R.A. Moody: Acute intracranial hypertension and auditory brain stem responses. Part 1: Changes in the auditory brain stem and somatosensory evoked responses in intracranial hypertension in cats. J. Neurosurg. 51: 669–676, 1979
Nagao S., P. Roccaforte, R.A. Moody: Acute intracranial hypertension and auditory brain stem responses. Part 3: The effects of posterior fossa mass lesions on brain stem function. J. Neurosurg. 52: 351–358, 1980
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Hirsch, H., Hohmann, V., Kaegler, M. et al. Recovery of auditory evoked potentials after long-term complete brain ischemia. Neurosurg. Rev. 12 (Suppl 1), 313–316 (1989). https://doi.org/10.1007/BF01790667
Issue Date:
DOI: https://doi.org/10.1007/BF01790667