Value of Special Auditory Tests in the Latero-Medial Inferior Pontine Syndrome

Noffsinger, Douglas; Kurdziel, Sabina; Applebaum, Edward L.

doi:10.1177/000348947508400317

Cited by 12 publications

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[1][2][3][4][5][6][7][8] Several prior studies 9-11,18 -21 of AICA infarction have described acute hearing symptoms. However, most were case reports, 9,11,18,19,21 and there has been no systematic study of a consecutive series of patients. In 1990, Hinojosa and Kohut 9 reported a clinicopathological study in a patient with complete AICA infarction.…”

Section: Discussionmentioning

confidence: 99%

Sudden Deafness and Anterior Inferior Cerebellar Artery Infarction

Lee

Sohn

Jung

et al. 2002

Stroke

198

151

View full text Add to dashboard Cite

Background and Purpose-Acute ischemic stroke in the distribution of the anterior inferior cerebellar artery (AICA) is known to be associated with vertigo, nystagmus, facial weakness, and gait ataxia. Few reports have carefully examined the deafness associated with the AICA infarction. Furthermore, previous neurological reports have not emphasized the inner ear as a localization of sudden deafness. The aim of this study was to investigate the incidence of deafness associated with the AICA infarction and the sites predominantly involved in deafness. Methods-Over 2 years, we prospectively identified 12 consecutive patients with unilateral AICA infarction diagnosed by brain MRI. Pure-tone audiogram, speech discrimination testing, stapedial reflex testing, and auditory brainstem response were performed to localize the site of lesion in the auditory pathways. Electronystagmography was also performed to evaluate the function of the vestibular system. Results-The most common affected site on brain MRI was the middle cerebellar peduncle (nϭ11). Four patients had vertigo and/or acute auditory symptoms such as hearing loss or tinnitus as an isolated manifestation from 1 day to 2 months before infarction. Audiological testings confirmed sensorineural hearing loss in 11 patients (92%), predominantly cochlear in 6 patients, retrocochlear in 1 patient, and combined on the affected side cochlear and retrocochlear in 4 patients. Electronystagmography demonstrated no response to caloric stimulation in 10 patients (83%). Conclusions-In our series, sudden deafness was an important sign for the diagnosis of AICA infarction. Audiological examinations suggest that sudden deafness in AICA infarction is usually due to dysfunction of the cochlea resulting from ischemia to the inner ear.

show abstract

Section: Discussionmentioning

confidence: 99%

Sudden Deafness and Anterior Inferior Cerebellar Artery Infarction

Lee

Sohn

Jung

et al. 2002

Stroke

198

151

View full text Add to dashboard Cite

show abstract

“…Since the MS group yields small MLD and the cortical lesion group normal MLD, an obvious speculative conclusion is that MLD may have unique value in detection of brain stem and/or midbrain lesions. The recent report of Noffsinger et al 9 showing reduced MLD for a patient having a lateromedial inferior pontine syndrome lends further credence to such a supposition.…”

mentioning

confidence: 82%

Masking Level Differences for Cochlear and Brain Stem Lesions

Olsen

Noffsinger²

1976

Ann Otol Rhinol Laryngol

Self Cite

View full text Add to dashboard Cite

Masking level differences (MLD) for 500 Hz pure tones and for spondees were obtained from 48 subjects. Twelve were without otologic or neurologic complaints (normal), 12 had high frequency, noise-induced hearing losses, 12 were diagnosed otologically as having Ménière's disorder, and 12 had neurologically diagnosed central nervous system (CNS) disorders. Results indicated that high frequency, noise-induced hearing losses do not affect MLD for 500 Hz stimuli, but do diminish the size of MLD for speech. Masking level differences for both 500 Hz and spondees were decreased for the Ménière's disorder group. The group of patients having CNS disorders attributed to multiple sclerosis, to inflammatory lesion of the pons, to degenerative processes of the cerebellum and adjacent nervous tissue, or to brain stem cerebrovascular accident had normal hearing according to conventional pure tone and speech testing, but attained smaller than normal MLD for 500 Hz and spondees. These findings agree closely with results obtained in an earlier study and continue to suggest that, given normal peripheral auditory function, MLD tests may have unique value in detection of subtle lesions of the central auditory nervous system.

show abstract

“…In addition to various batteries measuring central auditory function, another innovative technique for detecting central auditory brainstem pathology is a psychoacoustic phenomenon known as masking level difference (MLD). Masking level differences have been shown to demonstrate the continuing presence of auditory brainstem lesions despite normal conventional pure-tone and speech sensitivity tests (Quaranta and Cervellera, 1974;Noffsinger et al, 1975;and Olsen et al, 1976).…”

Section: Introductionmentioning

confidence: 99%

Auditory processing and perceptual abilities of “organic” and “functional” stutterers

Liebetrau

Daly

1981

Journal of Fluency Disorders

View full text Add to dashboard Cite

The present investigation was undertaken to determine whether significant differences in auditory processing and perceptual abilities exist between (1) stutterers as a supposedly homogeneous group when compared with controls, (2) two differentiated subgroups of stutterers, and (3) either of the stuttering subgroups when separately compared with controls. Dichotic listening and masking level difference (MLD) tasks were administered to the two groups of school-age stutterers and an age-matched nonstuttering control group. Stuttering subjects were differentiated into "organic" and "functional" subgroups on the basis of neuropsychological test performances. Organic stutterers performed significantly poorer than did controls on one MLD experimental condition. Functional stutterers performed more like control subjects than like organic stutterers. Starkweather, Hirschman, and Tannenbaum, 1976), atypical performance on neuropsychological tests (Daly and Smith, 1976; Daly, Kimbarrow, and Smith, 1977), lack of cerebral dominance (Curry and Gregory, 1969; Brady and Berson, 1975), and dysfunction of auditory processing and perceptual abilities (Hall and Jerger, 1978; Toscher and Rupp, 1978). The hypothesis that some type of organic dysfunction may

show abstract

Value of Special Auditory Tests in the Latero-Medial Inferior Pontine Syndrome

Cited by 12 publications

References 6 publications

Sudden Deafness and Anterior Inferior Cerebellar Artery Infarction

Sudden Deafness and Anterior Inferior Cerebellar Artery Infarction

Masking Level Differences for Cochlear and Brain Stem Lesions

Auditory processing and perceptual abilities of “organic” and “functional” stutterers

Contact Info

Product

Resources

About