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Results for “Hearing Disorders”

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At least 19 recordsLinked to original sources
PubMed1976

[Juvenile psychogenic hearing disorders].

Psychogenic hearing problems exist even in childhood. They must be differentiated from the stimulated or aggravated hearing losses. A characteristic is the discrepancy between the understanding during conversation and the bad results of the hearing tests. The psychical case history of the patient shows his conflict-situation and personal problems. If the psychogenic hearing problems do not improve on their own or by means of oto-rhinolaryngical placebo-therapy, psycho-therapy will be needed. Taking the example of 2 children, where the suspected primary diagnosis was sudden deafness, the problems of diagnosis was shown.

Adolescent↗
PubMed1975

Screening for neonatal hearing disorders in the Province of Central Finland.

Screening for congenital hearing disorders in newborn infants has been carried out in the Province of Central Finland since 1967. In 1967-1971, a total of 23 children (12 boys and 11 girls) were found to have congenital hearind disorders. From this it can be calculated that 90 infants are born each year with congenital hearing disorders in Finland. Our sample did not include slight or moderate hearing disorders (under 45 dB). 11 children under the age of 18 months were provided with a hearing aid. In spite of the screening, 12 cases (mean age 2 years) were not diagnosed until they came to the phoniatric clinic because of delayed speech development. These children were presumably also congenitally deaf. Most of the children in the delayed group reacted favourably to the auropalpebral reflex test on the obstetrical ward; their speech development was better and they also profited more from having a hearing aid than those children whose hearing defect had been discovered earlier. Screening for hearing disorders should be made nation-wide in order to avoid the harmful effects of the delay of rehabilitation on the child's development. The possibility of a hearing disorder should be kept in mind in those cases where there is a delay in speech development and also in those cases where the child has some other severe congenital defect which demands the attention of the nursing staff.

Child, Preschool↗
PubMed1979

Speech, language and hearing disorders in a adult penal institution.

It has been speculated that the prevalence of communicative disorders among prison inmates is considerably higher than that found in the general population, but research regarding inmate speech and hearing disorders is limited. This study investigated the nature and extent of communicative disorders in an inmate population of a medium-security penal institution in southeastern Virginia. The results of the screening indicated a slightly lower prevalence of stuttering, higher prevalences of articulation, voice, and hearing disorders, and more deficient receptive vocabulary skills than found in the general population. Some dialectal variations among black inmates are noted and the possible influence of linguistic-cultural interference on the results is discussed.

Adolescent↗
PubMed1975

[Animal experiment histological-histochemical studies on the development of hearing disorders related to hypothyroidism].

It has been known for a long time that hearing deficits may coexist in patients with thyroid disease, but without definite morphologic evidence present to correlate gland dysfunction with hearing disturbances. To clarify this relationship between thyroid dysfunction and hearing disturbances, the guinea pig was employed as an experimental model. 70 animals were thyroidectomized, and maintained in a hypothyroid state for varying periods of time. The animals were then sacrificed, and various histochemical studies then performed. These studies included analysis for glycosidase (beta-galactosidase, beta-glucuronidase, n-acetyl-beta-glucosamide), non-specific esterases, sulfatases, sulghydryl groups as well as mucous substances within the cochlea and saccus endolymphaticus of the experimental animals. Results indicated that hyaluronidase-sensitive mucous substances were increased in the scala of the inner ear. As a consequence of increased deposition of acid mucopolysaccharides, the relationship of potassium to sodium in endolymph and perilymph was found markedly altered. Marked swelling of the chambers of the inner ear was noted, and believed to represent hydropic induction by acid mucopolysaccharide-with consequent alteration of electrolyte relationships ("Electrochemical Theory").

Animals↗
PubMed1977

[ERA-findings by "cortical hearing disorder" (author's transl)].

Since about the last 2 years the late potential's component N1 (90--110 ms) as well as the early acoustically evoked potentials, appearing in a latency range of 1--8 ms and consisting of the nerve action potential (Pot. I) and the brain-stem potentials (Pot. II-V), were registered at some hearing impaired patients. This procedure enabled us to diagnose a "cortical hearing defect" at five patients: a) three children at an age of 2--3 years; they all have a slight cerebral damage, a hearing impairment and no speech-development; b) a 15 year old girl with a hearing impairment which is on the right side more severe than on the left side, as consequence of an encephalitis; and c) a 50 year old man suffering on both sides from a loss of temporal brain's substance and from a total deafness after an insult of both arteriae meningeae mediae. At all these patients the ERA-findings result in an almost normal behaviour of the bioelectrical transfer of the acoustic stimuli in the region of the brain-stem, whereas the late potential's component N1 showed a pathologic distortion. The ERA-results together with the anammesis make a "cortical hearing disorder" probable at these five patients. The audiograms and the ERA-characteristic lines are shown and discussed.

Adolescent↗