Open AccessBrain Stem Auditory‐Evoked Response Abnormalities in 14 Dogs With Confirmed Central Nervous System Lesions
Author(s) -
Steiss Janet E.,
Cox Nancy R.,
Hathcock John T.
Publication year - 1994
Publication title -
journal of veterinary internal medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.356
H-Index - 103
eISSN - 1939-1676
pISSN - 0891-6640
DOI - 10.1111/j.1939-1676.1994.tb03236.x
Subject(s) - medicine , forebrain , pathology , meningoencephalitis , magnetic resonance imaging , central nervous system , hydrocephalus , radiology
Abnormal brain stem auditory‐evoked responses (BAER) were recorded on 14 dogs with brain lesions confirmed by necropsy (n = 13) or magnetic resonance imaging and surgical biopsy (n = 1). Lesions included brain stem or cerebellar tumors (6 dogs), brain stem trauma (1 dog), forebrain tumors (3 dogs), hydrocephalus (2 dogs), granulomatous meningoencephalitis (1 dog), and meningoencephalitis (1 dog). Five affected dogs were comatose at the time of recording. BAER abnormalities could be classified as (1) absence of some or all of waves I to V, (2) increased latencies, with wave V being most frequently affected, or (3) a reduction in the amplitude ratio of waves V/1.