摘要:

The first prohably still reversible histopathological changes in the inner ear after interruption of the blood supply to the labyrinth are described. This acute ischemique syndrome is characterized by a swelling of the dendrites to the inner hair cells, protrusions from the surface of the stria and the spiral ligament. There is evidence that vascular spasms plays a great role in the aetiology of sudden deafness. In animal experiments spontaneous and induced spasms is regularly seen in the branches of the basilar artery. According to the experience of the ENT Department of the University of Zurich there are good changes for a recovery of the ear when the patients are treated as soon as possible with large doses of Eupaverin.

ISSN:0301-1569    

DOI:10.1159/000274902

出版商:S. Karger AG    

年代:1969

数据来源: Karger

摘要:

Prenatal tests of hearing are practically of great value in making an early diagnosis of deafness. Attempts were made to develop a relatively simple method of prenatal tests of hearing, and 134 fetuses of the 6th–10th month period of pregnancy were examined by means of this method. Pure tones of frequency 500, 1,000 and 2,000 Hz generated by a conventional audiometer were used as acoustic stimuli. Movements of the fetus as well as changes in the fetal pulse rate occurring during or immediately after the stimulation were used as criteria for the auditory response. One hundred and twenty-four of 134 fetuses responded to the stimulating tones, while the remaining 10 showed no responses. No responses were found in the fetuses in the 6th month of pregnanc

ISSN:0301-1569    

DOI:10.1159/000274903

出版商:S. Karger AG    

年代:1969

数据来源: Karger

摘要:

Histochemically, acid mucopolysaccharides could be detected in different sections of man’s scala media. Perilymph and endolymph, withdrawn in vivo from guinea pigs by means of a freezing technique contain, based upon our experimental results in thin-layer chromatography, only a minimum amount of mucopolysaccharide

ISSN:0301-1569    

DOI:10.1159/000274904

出版商:S. Karger AG    

年代:1969

数据来源: Karger

摘要:

Deformations of the temporal bone due to head injury have been experimentally studied with a tensometer. Three types of oscillation waves have been ascertained: (1) the simple wave in normal elasticity of the bone tissue; (2) the widened wave in the partial loss of elasticity, and (3) the wave in fractured bone.

ISSN:0301-1569    

DOI:10.1159/000274905

出版商:S. Karger AG    

年代:1969

数据来源: Karger

摘要:

For the audiological examinations of infants one needs a battery of tests. We developed an audiometric technique called Peek-a-Boo audiometry. It offers various ways to test and to condition the child. There is a good agreement between Peek-a-Boo audiograms and headphone audiograms taken at a later time.

ISSN:0301-1569    

DOI:10.1159/000274906

出版商:S. Karger AG    

年代:1969

数据来源: Karger

摘要:

Only the more recent publications are of the opinion that the cylindroma or adenoid cystic carcinoma – inspite of lacking criteria of cellular malignancy – is a malignant tumour. It recommends radical surgical therapy and regular postoperative control-examinations. The present study demonstrates that the cylindroma is a malignant type of tumour with a relatively high incidence of metastasis and mortality. After the same time we emphasize that a correlation between histological and clinical features does not exist. Pure cylindromas show a different clinical behaviour from that of so-called mixed tumours of the parotid gland, which include singular cylindromatous structures. These so-called mixed tumours may be regarded as benign. Conclusions: (1) Even harmless alterations in the oral mucosa must be considered as possible cylindromas. For that reason biopsies necessarily must be performed. (2) The operation at an early stage must be a radical one since radio-therapy is not very successful and treatment with cytostatics is till now useless: (a) the facial nerve has to be sacrificed when the cylindroma involves the parotid gland (the reason for this is the perineural invasion) and eventually a partial mandibulectomy is indicated; (b) cylindromas with localisation in the upper jaw call for total maxillary resection and if need exenteration of the orbita; (c) if metastasis has been pointed out, a radical neck dissection must be performed in addition to the radical operation of the primary tumour. (3) Regular, strict postoperative control-examinations must follow the early stage operation, as is the case with all carcinoma patients. (4) A survival rate of 5 years is not equal to final healing since recurrence of the disease may be observed even more than 20 years after an apparently successful treatm

ISSN:0301-1569    

DOI:10.1159/000274907

出版商:S. Karger AG    

年代:1969

数据来源: Karger

ISSN:0301-1569    

DOI:10.1159/000274908

出版商:S. Karger AG    

年代:1969

数据来源: Karger

ISSN:0301-1569    

DOI:10.1159/000274909

出版商:S. Karger AG    

年代:1969

数据来源: Karger