Skip to main content Accessibility help
×
Home

Brainstem auditory evoked potential with increased stimulus rate in minor head trauma

  • Ludwig Podoshin (a1), Yaacov Ben-David (a1), Milo Fradis (a1), Hillel Pratt (a2), B. Sharf (a3) and M. Schwartz (a3)...

Abstract

Fifteen Minor Head Trauma patients were investigated by Brainstem Auditory Evoked Potentials at 10/s and 55/s stimulus rate. The results were compared with those of the same patients at a second examination, two months later, as well as with a matched normal control group. Increasing the stimulus rate in MHT patients caused a significant but reversible delay in the central conduction time. No significant difference was found regarding the interpeak latency differences at a 10/s stimulus rate. The present study suggests that the primary lesion in MHT is ischaemic, affecting synaptic efficiency, and not axonal damage. These findings may be informative on the as yet obscure pathophysiological mechanism of minor head trauma.

Copyright

Corresponding author

L. Podoshin, M. D. Dept. of OtolaryngologyBnai Zion Medical Center, P.O.B. 4940, Haifa 31048, Israel.

References

Hide All
Adams, R. D., Victor, M. (1985) Principles of Neurology, 3rd edition, 34: 641664.
Aquilar, EA III, Hall, JW. III, Mackey-Hargadine, J. (1986) Neurootologic evaluation of patients with acute severe head injuries: Correlations among physical findings auditory evoked responses and computerized tomography. Head and Neck Surgery, 94: 211219.
Ben-David, J., Gertner, R., Podoshin, L., Fradis, M., Pratt, H., Rabina, A. (1980) Auditory brainstem evoked potentials in patients suffering from peripheral focal nerve palsy and diabetes mellitus. Journal of Laryngology and Otology, 100: 629633.
Ben-David, J., Pratt, H., Landman, L., Fradis, M., Podoshin, L., Yeshurun, D. (1986) Comparison of auditory brain-stem evoked potentials in hyperlipidemics and normolipemic subjects. Laryngoscope, 96: 186189.
Browning, G. G., Swan, R. C., Gatehouse, S. (1982) Hearing loss in minor head injury. Archives of Otolaryngology, 108: 474477.
Bruce, D. A. (1976) Cerebral microcirculation assessed by regional blood flow alterations in damaged brain. Ed. McLaurin, RL: Head injuries, Second Chicago Symposium on Neural Trauma, 27: 2019.
Foltz, E. L., Schmidt, R. P. (1956) The role of reticular formation in the coma of head injury. Journal of Neurosurgery, 13: 145149.
Fradis, M., Podoshin, L., Ben-David, J., Pratt, H., Sharf, B., Weller, B., Waisbrot, I., Zellinger, M. (1987) Auditory brainstem evoked potentials in patients with migraine. Headache Journal, 27: 2729.
Geets, W., Louette, N. (1983) EGG et potentielsevoquesdu tronc cerebral dans 125 commotions recents. Revue EEE Neurophysiologique Clinique, 13: 253258.
Hall, J. W., Huang-Fu, M., Genarelli, T. A. (1982) Auditory function in acute severe head injury. Laryngoscope, 92: 883890.
Karnaze, D. S., Weiner, J. M., Marshall, L. F. (1985) Auditory evoked potentials in coma after closed head injury: A clinicalneurophysiologic coma scale for predicting outcome. Neurology, 35: 11221126.
Kenneth, B. H. (1982) Genetic influences on binaural summation and recovery rate of the brainstem auditory evoked response. Acta Otolaryngologica, 93: 17.
Mendelow, A. D., Teasdale, G. M. (1983) Pathophysiology of head injuries. British Journal of Surgery, 70: 641650.
Newlon, P. G., Greenberg, R. P. (1984) Evoked potentials in severe head injury. Journal of Trauma, 24: 6166.
Ommaya, A. K., Rockoff, L. D., Balwin, M. (1964) Experimental concussion. Jounal of Neurosurgery, 21: 249–52.
Pratt, H., Sohmer, H. (1976) Intensity and rate functions of cochlea and brainstem evoked responses to click stimuli in man. Archives of Oto-Rhino-Laryngology, 212: 8593.
Pratt, H., Ben-David, J., Peled, R., Podoshin, L., Sharf, B. (1981) Auditory brain-stem evoked potential: Clinical promise of increased stimulus rate. Electroencephalography and Clinical Neurophysiology, 51: 8090.
Rosenblum, J. W. (1976) Effects of trauma on directly visualized microvessels. Ed. McLaurin, R. L. Head Injuries, Second Chicago Symposium on Neural Trauma, 21: 195201.
Schoenhuber, R., Bortolotti, P., Malavasi, P. (1985) Brainstem acoustic evoked potentials in 165 patients examined within 48 hours of a minor head injury, in Morocutti, C., Rizzo, P. A. (eds) Evoked Potentials: Neurophysiological and Clinical Aspects. Amsterdam, Elsevier Science Publishers, pp 237241.
Schoenhuber, R., Gentilim, M., Scahano, M., Bortolotti, P. (1987) Longitudinal study of auditory brainstem response in patients with minor head injuries. Archives of Neurology, 44: 11811182.
Starr, A., Achor, L. G. (1975) Auditory brain stem responses in neurological disease. Archives of Neurology (Chicago), 32: 761768.
Strich, S. O. (1961) Shearing of nerve fibres as a cause of brain damage due to head injury. Lancet, II: 443–8.
Touhimaa, P. (1978) Vestibular disturbances after acute mild head injury. Archives of Otolaryngology (supplement 359): 852.

Brainstem auditory evoked potential with increased stimulus rate in minor head trauma

  • Ludwig Podoshin (a1), Yaacov Ben-David (a1), Milo Fradis (a1), Hillel Pratt (a2), B. Sharf (a3) and M. Schwartz (a3)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.