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Results for “Hearing Loss, Bilateral”

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At least 19 recordsLinked to original sources
PubMed1978

Sudden bilateral hearing loss and meningitis in adults.

Sudden profound bilateral sensorineural hearing loss is a serious complication of bacterial meningitis. With high dosage Dexamethasone it is possible to halt, and, in some instances, to reverse the progression of the hearing loss. The efficacy of treatment depends upon early diagnosis. Hearing may worsen upon steroid cessation and low dosage oral steroid may be required for several months. The eventual hearing loss may be considerably worse than anticipated. Two cases illustrating differing aspects of the disease are described.

Adult↗
PubMed1975

Bilateral hearing loss as a sequel to unilateral acoustic trauma.

Within the framework of a study on the natural history of acoustic trauma, over 600 soldiers were examined. A higher rate of bilateral acoustic trauma was observed among soldiers with longer service. Comparison between unilateral and bilateral acoustic trauma showed a greater severity of damage in both ears of the latter group. Comparison of the progression of the damage in the same persons on two consecutive examinations suggested the same trend. It is suggested that bilateral acoustic trauma may be a later and more severe stage in some types of noise-induced damage.

Adult↗
PubMedDate not supplied

Auditory function after Haemophilus influenczae meningitis.

Eighty-three children, having recovered from Haemophilus influenzae meningitis, were examined with audiometrical tests. Fifteen of the children (18.1%) had significant hearing loss. Bilateral severe hearing loss was found in 3 patients. Three patients had severe hearing loss affecting one ear and slight or moderate hearing loss affecting the contralateral ear. Six children had entirely unilateral severe hearing loss. Bilateral or unilateral slight or moderate hearing loss was found in 3 patients. The remaining 68 patients had normal pure tone average. Half of these patients, however, showed minimal hearing impairment at the low and high frequencies.

Adolescent↗
PubMed1979

[Stereophonic apparatus: our hearing aid test].

The authors wanted to verify the advantages produced by binaural amplification in the loudness and in the speech identification. To value the improvement in speech identification they used the Jerger's test (1976); and to value the loudness improvement they measured, gain characteristics of the aid with monoaural and binaural amplification. They executed the test on 50 hearing aid users, chosen among 10 and 84 years old, suffering from sensorineural bilateral hearing loss between 40 and 80 dB. It results that : 1. The gain obtained by the use of binaural amplification is 5 dB lower than the one obtained by monoaural. 2. The binaural amplification permits a remarkable advantage in speech identification, the advantage is directly proportionated to deafness. The authors conclude that the described test is valid, simple and that it is possible to apply it by cheap instruments.

Adolescent↗
PubMed1979

[Loss of hearing in cerebral palsy (author's transl)].

The hearing threshold level was examined in 75 cerebral palsied children (3--15 yrs.). In the case of 5 patients, we were unable to get an audiogram. 50 children had a normal audiogram on both ears. 13 patients had a bilateral, one a unilateral sensoneural loss of hearing. The rate of conductive loss of hearing was unexpectedly high: 4 patients with a bilateral pure conductive loss of hearing, 3 with a bilateral sensoneural loss of hearing and a bilateral additional airborne gap, and 2 with a monaural conductive loss of hearing. The treatment of the conductive deficiency is of primary importance in cases of a super-imposed senso-neural loss of hearing losses. 7 of our patients have been fitted with a hearing aid. The threshold of the stapedius reflex could be estimated in the case of 10 patients suffering from a sensoneural loss of hearing. All had a reduced dynamic range. Reduction of the dynamic range is not a specific trait of cerebral palsy as our cerebral palsied children with normal hearing had a normal dynamic range. No correlation could be found between asphyxia, underweight and hyperbilirubinaemia as single factors in the newborn period and sensoneural loss of hearing nor between athetosis and sensoneural loss of hearing.

Adolescent↗
PubMed1979

Bilateral sudden hearing loss and metastatic pancreatic adenocarcinoma.

We report a rare case of bilateral sudden and profound hearing loss caused by bilateral temporal bone metastasis from a primary adenocarcinoma of the tail of the pancreas. The hearing loss was the patient's only reason to seek medical care. Seventh nerve involvement was very minimal, when compared with that of the eighth nerve.

Adenocarcinoma↗
PubMedDate not supplied

Temporal bone histopathology in deafness due to cryptococcal meningitis.

This paper reports on a patient who survived an attack of cryptococcal meningitis eight years prior to his death. A bilateral sensorineural hearing loss had been noted a short time before the patient was admitted to the hospital, and was the only complication after he recovered from the disease. Histopathologic study of the temporal bones showed a similar pattern of pathology in both ears, the most striking finding being a severe loss of spiral ganglion cells in Rosenthal's canal, and of cochlear nerve fibers in the osseous spiral lamina and internal auditory meatus. The vestibular nerve was mostly free from pathology. The organ of Corti was atrophic but the hair cell population appeared to be almost normal. A slight number of cryptococci were observed in limited areas of the cochlear and the saccular nerves in the internal auditory meatus. The severe pathology of the cochlear nerve was compatible with audiologic evaluations, which pointed to a retrocochlear lesion. Thus, this case demonstrates some characteristic aspects of cryptococcal infection of the temporal bone: The primary site of invasion was the cochlear nerve in the internal auditory meatus and the modiolus, leading to the loss of ganglion cells and nerve fibers, while the vestibular nerve appears to have been resistant to infection.

Cochlear Nerve↗
PubMedDate not supplied

Study of 100 patients with bilateral sensorineural hearing loss for lipid abnormalities.

One hundred persons were selected from our audiology records who showed at least 20 dB bilateral sensorineural hearing loss. The number 100 was picked for an adequate statistical analysis. The patients were taken from the chart files which are filed in chronological order. Letters were mailed with instructions for fasting 14 hours prior to testing except for the consumption of water. On presentation, a history was taken for diabetes, height and weight, and the blood pressure was recorded. The blood samples were drawn in clot tubes and taken to a commercial laboratory for overnight refrigeration and testing of the serum. Testing included observation of serum for massive chylomicronemia, triglycerides, cholesterol and lipoprotein electrophoresis (by the cellulose acetate method). Lipoprotein testing results showed 12 patients with Type II A or II B and 8 patients with Type IV abnormalities. No Types I, III or V were found. These 20 patients represent a lower number of hyperlipoproteinemic patients than would be expected in the general population.

Aged↗
PubMed1977

Profound bilateral sensorineural hearing loss during gentamicin therapy.

A case of profound bilateral sensorineural deafness occurring during gentamicin therapy is presented. Considerable recovery of the hearing in the right ear was observed but the left ear remained "dead". Electrocochleography confirmed the end-organ nature of the damage. Apart from the profound sudden deafness the unusual feature of this case was the total absence of vestibular effects. The ototoxic effects of gentamicin are discussed including the predisposing factors. While the incidence of ototoxicity with gentamicin is low (2-3%) this figure will only remain acceptable if the use of the drug is restricted to those patients who might die or suffer severe morbidity without it. The factors which make side-effects more likely to occur should always be borne in mind and due attention paid to the monitoring of renal function and serum antibiotic levels.

Adult↗
PubMed1976

Occlusive retinal vascular disease and deafness.

An 8-year-old white girl with a history of vertigo, nausea, and vomiting developed a progressive hearing loss, bilateral retinal arteriolar narrowing in each eye, vasoproliferation, and subsequent intravitreal hemorrhage. An attempt at peripheral retinal ablation with cryotherapy in the left eye resulted in retinal detachment. Spontaneous retinal detachment occurred in the right eye and was successfully repaired. Repeated intermittent hemorrhages occurred despite intraocular diathermy. Three years after onset, visual acuity was R.E.: 6/21 (20/66) and L.E.: light perception. She remains totally deaf. A 20-year-old white woman developed severe bilateral sensorineural hearing loss with poorly functioning labyrinths, followed by midperipheral retinal arteriolar occlusions and vasoproliferation on the optic nerve head. Progressive retinal neovascularization was followed by rubeosis iridis and repeated episodes of intravitreal bleeding. Six years after onset, visula acuity was R.E.: hand motions, and L.E.: 6/3 (20/100). She remains totally deaf. Both patients were of normal gestation, development, and mentality, without evidence of other systemic disease. The cause of this disease was not found.

Adult↗
PubMed1979

Dissimilarity ratings of English consonants by normally-hearing and hearing-impaired individuals.

Perceptual patterns in rating dissimilarities among 24 CVs were investigated for a group of normal-hearing and two groups of hearing-impaired subjects (one group with flat, and one group with sloping, sensorineural losses). Stimuli were presented binaurally at most comfortable loudness level and subjects rated the 576 paired stimuli on a 1-7 equal-appearing interval scale. Ratings were submitted to individual group and combined INDSCAL analyses to describe features used by the subjects in their perception of the speech stimuli. Results revealed features such as sibilant, sonorant, plosive and place. Furthermore, normal and hearing-impaired subjects used similar features, and subjects' weightings of features were relatively independent of their audiometric configurations. Results are compared to those of previous studies.

Adult↗
PubMedDate not supplied

Treatment of syphilitic hearing loss. Combined penicillin and steroid therapy in 29 patients.

Twenty-nine patients with presumed syphilitic hearing loss, either congenital or acquired, were treated on one or more occasions according to a three-month protocol using penicillin and prednisone. Changes in hearing were carefully followed during treatment and for at least one year thereafter. Of 58 ears studied in 29 patients, 19 demonstrated significant partial improvement in hearing during treatment. However, 11 ears returned to pretreatment hearing levels after therapy, and only 8 ears, or 15%, maintained the hearing gains one year later. Enhanced discrimination occurred more commonly than gains in pure tone threshold. Long-term alternate day prednisone therapy was required to sustain hearing improvement in a small number of patients.

Adult↗
PubMedDate not supplied

[Clinical, multimodal electrophysiological study of a family with progressive cerebellar ataxia and late deafness and an autosomal recessive inheritance].

We described the clinical, electrophysiological (electromyography, sensory and motor nerve conduction study, somatosensory evoked potentials, brainstem auditory evoked potentials, visual evoked potentials) and neuroradiological (brain magnetic resonance) data in 3 siblings (2 males and 1 female, age range: 54-48 years) affected by autosomal recessive late onset cerebellar ataxia. The 3 patients showed at the electrophysiological examination: mild peripheral neuropathy, involvement of somatosensory pathways both on central and peripheral side. A mild cerebellar atrophy, most evident in the female more severely disabled, was found by magnetic resonance.

Atrophy↗