Acute intracranial hypertension and auditory brain-stem responses. Part 1: Changes in the aduitory brain-stem and somatosensory evoked responses in intracranial hypertension in cats

Journal of Neurosurgery
S NagaoR A Moody

Abstract

Changes in auditory brain-stem responses (BER's) and somatosensory evoked responses (SER's) were investigated to correlate mass volume, intracranial pressure, and neurological dysfunction in mass-induced intracranial hypertension in cats. As the intracranial pressure was raised by expansion of a supratentorial balloon, the late components of the SER's were suppressed first, followed by the early components of the SER's, then Wave V and Wave IV of the BER's, in that order. This suggests that the nonspecific reticular projections are most vulnerable to compression ischemia, and the specific somatosensory pathways are the next most vulnerable. Neural activity of the auditory pathways in the upper brain stem was also gradually suppressed, but less so than that of the somatosensory pathways. After complete transtentorial herniation, in spite of immediate mass evacuation, the function of the somatosensory pathways was greatly impaired, often irreversibly. The neural activity of the auditory pathways in the upper brain stem revealed progressive recovery during a 3-hour period. The measurements of BER Wave V is thought to be useful in predicting transtentorial herniation.

References

Dec 1, 1988·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·N K VenkataramanaB S Das
Jan 1, 1996·Acta neurochirurgica·H KobayashiT Kubota
Jan 1, 1989·Neurosurgical Review·N KawaharaK Takakura
Nov 14, 1997·The Ceylon Medical Journal·S GunatilakeM Fonseka
Feb 1, 1983·Electroencephalography and Clinical Neurophysiology·H SohmerP Fainmesser
Jun 1, 1987·Electroencephalography and Clinical Neurophysiology·B C FullertonN Y Kiang
Nov 1, 1987·Electroencephalography and Clinical Neurophysiology·L Garcia-LarreaF Mauguière
Sep 1, 1994·Journal of Veterinary Internal Medicine·A Fischer, G Obermaier
Jan 1, 1989·Archives of Disease in Childhood·S LaryV Dubowitz
Mar 1, 1984·Journal of Neurosurgery·S NagaoA Nishimoto
Jul 1, 1986·Journal of Neurosurgery·J L StoneS Nagao
Jul 1, 1984·Electroencephalography and Clinical Neurophysiology·N KrausN L Reed
Jan 1, 1991·American Journal of Otolaryngology·M C Greiman, R P Lusk
Apr 1, 1988·Clinical EEG (electroencephalography)·R F GhalyJ R Hughes
Jul 1, 1986·Acta Oto-laryngologica·S MatsuuraT Nakamura
Jan 1, 1982·Audiology : Official Organ of the International Society of Audiology·E Laukli, I W Mair
May 1, 1997·Indian Journal of Pediatrics·R K KapoorB Sharma

Citations

Jul 1, 1977·Stroke; a Journal of Cerebral Circulation·M H BennettP J Jannetta
Jan 1, 1976·Clinical Neurology and Neurosurgery·A H van Zomeren, B G Deelman
Jan 1, 1975·Journal of Applied Physiology·S R DattaB N Roy
Aug 1, 1975·Science·J S Buchwald, C Huang
Jan 1, 1976·The Orthopedic Clinics of North America·R L Piziali, D A Nagel
Jun 1, 1972·Electroencephalography and Clinical Neurophysiology·R Q Cracco
Nov 1, 1966·Electroencephalography and Clinical Neurophysiology·T ALLISONM B Sterman
Mar 1, 1967·Electroencephalography and Clinical Neurophysiology·L BergaminiR Mutani
Jun 1, 1970·Electroencephalography and Clinical Neurophysiology·D L Jewett
Jan 1, 1971·Brain : a Journal of Neurology·D L Jewett, J S Williston
Nov 6, 1952·The New England Journal of Medicine·D MUNRO, W R SISSON
Mar 1, 1956·Journal of Neurosurgery·E L FOLTZ, R P SCHMIDT
Jul 1, 1956·Acta Radiologica·R T JOHNSON, P O YATES
Nov 1, 1959·Journal of Neurosurgery·W E STERN
Jul 1, 1960·The British Journal of Surgery·C M WEINTRAUB
Jun 1, 1962·Electroencephalography and Clinical Neurophysiology·T ALLISON
Sep 1, 1963·Anesthesiology·H A ABRAHAMIANB S ROSNER
Jun 1, 1960·The Journal of Nervous and Mental Disease·H JASPERT RASMUSSEN

Related Concepts

Ischemia
Biochemical Pathway
Neurologic Manifestations
Congenital Cerebral Hernia
Projections and Predictions
Transtentorial Hernia
Malignant Neoplasm of Brain Stem
Hypertensive Disease
Potentials, Event-Related
Auditory Evoked Potentials

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