This Article  • References  • Full text PDF  • Reply to article  • Send to a friend  • Save in My Folder  • Save to citation manager  • Permissions  Citing Articles  • Citation map  • Citing articles on HighWire  • Contact me when this article is cited  Related Content  • Similar articles in this journal  Social Bookmarking   What's this?

Their Asymmetric Abnormalities and Lesions of the Brain Stem

Isao Hashimoto, MD; Yoji Ishiyama, PhD; Genkichi Tozuka, MD

Arch Neurol. 1979;36(3):161-167.

Abstract
• Simultaneous bilateral recordings (C₃ to A₁ and C₄ to A₂) of brain stem auditory evoked responses have been studied in 67 supratentorial lesions, nine midbrain lesions, 21 intrinsic pontine lesions, and 23 extrinsic compressions of the pons. The responses in supratentorial lesions showed completely normal records. In midbrain lesions, wave V was specifically altered. As wave I has been shown to be a far-field seventh nerve potential, and wave V the midbrain potential, waves II to IV can be inferred to originate in the central auditory pathway between the seventh nerve and the midbrain. Alterations of waves II to IV correlated well with localization of pontine lesions, and asymmetric alterations of the bilaterally recorded responses were associated with unilateral lesions of the brain stem auditory pathway and/or lesions of the crossed auditory projections.

Author Affiliations
From the Department of Neurosurgery, Tokyo Metropolitan Hospital of Fuchu (Dr Hashimoto), and the Departments of Physiology (Dr Ishiyama) and Otolaryngology (Dr Tozuka), Toranomon Hospital, Tokyo.

Footnotes
Accepted for publication Feb 27, 1978.

Read before the Ninth International Congress of Electroencephalography and Clinical Neurophysiology, Amsterdam, Sept 7, 1977.

Reprint requests to Department of Neurosurgery, Tokyo Metropolitan Hospital of Fuchu, Musashidai 2-9-2, Fuchu City, Tokyo, Japan (Dr Hashimoto).

CiteULike    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter     What's this?

THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES

Brain-Stem Auditory Evoked Potential Abnormalities With Unilateral Brain-Stem Lesions Demonstrated by Magnetic Resonance Imaging
Markand et al.
Arch Neurol 1989;46:295-299.
ABSTRACT  

Early Brain-Stem Auditory Evoked Responses in Vertebrobasilar Transient Ischemic Attacks
Factor and Dentinger
Arch Neurol 1987;44:544-547.
ABSTRACT  

The Relevance of Contralateral Recordings and Patient Disability to Assessment of Brain-Stem Auditory Evoked Potential Abnormalities in Multiple Sclerosis
Hammond and Yiannikas
Arch Neurol 1987;44:382-387.
ABSTRACT  

Return to Alertness After Brain-Stem Hemorrhage: A Case With Evoked Potential and Roentgenographic Evidence of Bilateral Tegmental Damage
Portenoy et al.
Arch Neurol 1985;42:85-88.
ABSTRACT  

Brainstem Auditory-Evoked Responses: Normal Variation as a Function of Stimulus and Subject Characteristics
Stockard et al.
Arch Neurol 1979;36:823-831.
ABSTRACT  

Brain-stem Auditory-Evoked Responses
Stockard et al.
Arch Neurol 1979;36:598-597.
ABSTRACT