摘要:

The Commission of the European Communities funds a ‘concerted action’ programme in the area of hearing impairment. The programme does not fund research directly, but is intended to provide funds for coordination of research in different countries. Previous projects funded by the programme include a comprehensive study of the prevalence of childhood deafness in the European Community, and meetings on cochlear implants, human temporal bone histopathology, diagnostic techniques and hearing impairment in children. The programme is currently concerned with new technologies for communication in the hearing impaired and activities in 1988 will include workshops on signal processing hearing aids and early diagnosis in child

ISSN:0301-1569    

DOI:10.1159/000276012

出版商:S. Karger AG    

年代:1988

数据来源: Karger

摘要:

The microsphere method was adapted in 1974 for studies of cochlear blood flow. Since then it has been used in Uppsala, Sweden, at the Department of Otolaryngology, University Hospital, for investigations of the blood flow circulation in the inner ear. The experience with the technique, the subjects, the actual projects and the results are presented and discussed.

ISSN:0301-1569    

DOI:10.1159/000276013

出版商:S. Karger AG    

年代:1988

数据来源: Karger

摘要:

The innervation densities, i.e. the number of afferent endings per inner and outer hair cell, number of synaptic specializations per inner hair cell and the number of efferent endings per outer hair cell, were evaluated by serial section electron microscopy in the normal human inner ear and a case of Usher’s syndrome (retinitis pigmentosa and sen-sorineural hearing loss). There was a significant decrease in the innervation density in Usher’s syndrome as compared to normative controls, which could not be explained by the decrease in density of spiral ganglion cells. This was interpreted as suggesting a decrease in the number of neural processes and endings within the dendritic arborization of remaining spiral ganglion cells in this disor

ISSN:0301-1569    

DOI:10.1159/000276014

出版商:S. Karger AG    

年代:1988

数据来源: Karger

摘要:

Estimation of the prognosis of sudden sensorineural deafness is available by reviewing CM responses in electrocochleography (ECochG) even at an early stage of disease after the onset. The detection threshold of CM irrespective of the period of ECochG seems to be the most reliable tool to estimate the final hearing level in pure tone audiogram.

ISSN:0301-1569    

DOI:10.1159/000276015

出版商:S. Karger AG    

年代:1988

数据来源: Karger

摘要:

The insertion of a transtympanic ventilation tube prevented the occurrence of vertiginous attacks in 82% of a series of 28 patients suffering typical Ménière’s syndrome with incapacitating vertigo resistant to medical treatment. The follow-up time exceeds 2 years for all cases. It ranges from 2 to 4 years with an average of 2.5 years. This treatment had no effect on drop attacks. Also, hearing loss does not seem to be influenced. The presence of a transtympanic ventilation tube has not caused any major complications in these patients. Obstruction or loss of the tube was in some cases followed by the reappearance of vertigo. It is therefore important to check the patency of the tube before concluding that treatment has failed. The apparent benefit of ventilation tubes in reducing the occurrence of vertiginous attacks suggests that patients with endolymphatic hydrops are particularly sensitive to middle ear press

ISSN:0301-1569    

DOI:10.1159/000276016

出版商:S. Karger AG    

年代:1988

数据来源: Karger

摘要:

A 43-year-old female had bilateral otosclerosis with a persistent stapedial artery in the left ear which measured approximately 0.4 mm in diameter, lying on the floor of the tympanic cavity, running between the crura of the stapes and entering the facial canal. Stapedectomy was performed following section of this vessel and controlling the hemorrhage. Satisfactory hearing gain was obtained in both ears after stapedectomy.

ISSN:0301-1569    

DOI:10.1159/000276017

出版商:S. Karger AG    

年代:1988

数据来源: Karger

摘要:

Two groups of healthy persons were examined during rotation at a constant speed. In the first group (10 subjects), a narrow band noise (500 Hz, 70 dB SPL) from a fixed loudspeaker was applied during the 120°/s rotation. In the second group (20 subjects), a mild tactile stimulus was applied to the subject’s head. All individuals from both groups were convinced that it was not the chair they were sitting in, but the sound source and the tactile stimuli which were rotati

ISSN:0301-1569    

DOI:10.1159/000276018

出版商:S. Karger AG    

年代:1988

数据来源: Karger

摘要:

Partial surgical closure of the nostril was performed in 20 patients suffering from primary atrophic rhinitis, and the effect of the operation on the ultrastructure of the nasal mucosa was studied and analyzed. It was concluded that the operation has a beneficial effect on the nasal mucosa and reverses the basic pathologic alterations in its microanatomy.

ISSN:0301-1569    

DOI:10.1159/000276019

出版商:S. Karger AG    

年代:1988

数据来源: Karger

摘要:

Fifty-one children aged 4–12 years, presenting with an acute epidose of chronic rhinosinusitis, were treated for 6 months with either Broncho-Vaxom® (BV; marketed in Yugoslavia under the trade mark of Broncho-Munal®) or placebo under double-blind randomized conditions. The efficacy of BV was assessed on the basis of clinical symptoms (cough, nasal discharge, congestion of nasal mucosa), number and duration of concomitant treatments (antibiotics, secretolytics, antitussives), number and duration of acute episodes during the trial and serum IgA levels. In BV treated patients the incidence and duration of infectious episodes and the number and duration of concomitant treatments decreased significantly in comparison with the placebo group, and the clinical response correlated positively with an increase in the serum levels of IgA. The results of treatment of acute episodes of chronic rhinosinusitis in children demonstrated the curative and prophylactic efficacy of

ISSN:0301-1569    

DOI:10.1159/000276020

出版商:S. Karger AG    

年代:1988

数据来源: Karger

摘要:

Progressive hearing loss after cisplatin therapy is relatively frequent, specially in older patients, but it is less common in children and in acute form. The case of a 17-year-old patient with an intracranial tumor who suffered sudden deafness after a single course of cisplatin is presented. This patient had a previously documented very good hearing up to 20 kHz. Although it has been suggested that children with irradiated brain tumors may have an increased susceptibility to cisplatin-induced hearing loss, in this case the patient had not been subjected to radiotherapy.

ISSN:0301-1569    

DOI:10.1159/000276021

出版商:S. Karger AG    

年代:1988

数据来源: Karger