ISSN:0307-7772    

DOI:10.1111/j.1365-2273.1981.tb01789.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

A model for studying human cholesteatomasin vivoin the immunodeficient ‘nude’ mouse is described. Transplanted cholesteatoma membranes from 13 patients showed in 10 marked and fast growth in 14–21 days, whereas 3 showed necrosis. Findings ofcystic lesions lined by a thin stratified keratinizing epithelium were frequent and in contrast with transplanted jaw keratocyst the connective tissue reaction was weak. This experimental system may be useful for further studies of factors of importance for the regulation of differentiation and growth of middle ear mucosal epith

ISSN:0307-7772    

DOI:10.1111/j.1365-2273.1981.tb01790.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

The requisite for the development of a recurrent cholesteatoma caused by a retraction pocket is that the retraction takes place through a bottleneck into an otherwise closed cavity. In order to avoid this kind of recurrence either the bottleneck must be removed or the exenterated mastoid cavity must be plugged. This paper refers to an operation technique which was developed 14 years ago and which removes the bottleneck. Since, however, this technique leads in about half of the cases to an open cavity with the well‐known disadvantages, we have tried to obliterate the cavity permanently following a posterior tympanotomy. Obliteration is achieved by means of Palacos R, which makes fixed contact with the bone. The technique and details of its application are describe

ISSN:0307-7772    

DOI:10.1111/j.1365-2273.1981.tb01791.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

Tracheostomy in children has been reported to cause tracheal stenosis, laryngeal stenosis and subsequent difficulties in decannulation. No long term follow‐up studies appear to be in the literature describing the events following decannulation. This study compared the radiological size of the cricoid and tracheal lumens with that of normals. Except in special cases tracheostomy did not affect the subsequent growth of the trachea or cricoid. It is suggested that traumatic tracheal narrowing in children should be managed conservativel

ISSN:0307-7772    

DOI:10.1111/j.1365-2273.1981.tb01792.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

A characteristic clinical picture has been attributed to enlarged adenoids. In order to investigate this concept the occurrence of certain signs and symptoms was compared in a series of children selected for adenoidectomy and in a series of normal children. Nasal obstruction, snoring and speech defect occurred more frequently in children having adenoidectomy. The symptoms of rhinorrhoea, cough and headache and the signs of mouth breathing and abnormality on anterior rhinoscopy occurred as frequently in normal children as in children having adenoidectomy.

ISSN:0307-7772    

DOI:10.1111/j.1365-2273.1981.tb01793.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

The intrinsic muscles of the larynx were exposed in each of 54 normal larynges derived from the autopsy series of a general hospital and submitted to microscopic examination. Muscle fibre alterations were found in all the posterior cricocarytenoid muscles in patients from 13 years of age onwards. In about half of the patients these changes included necrosis of segments of muscle fibres and secondary cellular reactions to this. In two cases of chronic autonomic failure with multiple system atrophy the instrinsic laryngeal muscles were similarly examined. Both cases showed a marked gross and microscopic atrophy of the posterior cricoarytenoid muscles; there were also microscopic changes similar to those found in the normal population. The significance of the changes in the routine post‐mortem larynges, the changes in the cases of chronic autonomic failure with multiple system atrophy and the relationship between the two are discusse

ISSN:0307-7772    

DOI:10.1111/j.1365-2273.1981.tb01794.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

The accuracy and velocity of voluntary saccades together with the velocity of fast phases of nystagmus were studied in 26 patients belonging to 4 groups with defined neurological disorders. Patients with speech disorders of the dyspraxia type, indicating the lesion in the left frontal cortex, showed a pronounced decrease in saccadic accuracy in combination with normal saccadic and quick phase velocity. Patients with pontine disorders showed a significant decrease in the peak velocity of saccades and quick phases of nystagmus while the accuracy of the saccades ranged from normal to severely disturbed. Patients with acute meningo‐encephalitis showed increases in peak velocity of saccades and of quick phases of nystagmus and the accuracy was somewhat reduced. Patients with a labyrinthine disease showed normal velocity of saccades and of quick phases as well as normal accuracy of saccade

ISSN:0307-7772    

DOI:10.1111/j.1365-2273.1981.tb01795.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

Manual calculation of the parameters of nystagmus is imprecise and time consuming. Therefore, a computer program for analysis for analysis of nystagmus has been built up in our laboratory. The program is based on automatic extraction of the minimum and maximum values of nystagmus. These values are stored for calculations of duration, amplitude and velocity of the fast and slow phase. The distinction between the slow and fast phase is based on the duration of the phases. The program is thus able to accept nystagmus in different directions.

ISSN:0307-7772    

DOI:10.1111/j.1365-2273.1981.tb01796.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

Silastic has a relatively high incidence of late complications when used as a middle ear liner in unstaged tympanoplasty procedures. This does not seem to be the case in staged procedures where it is removed at the second operation or in cases where small pieces are used to prevent refixation of the malleus or stapes. At the present time, the use of gelfilm seems to be the most acceptable alternative.

ISSN:0307-7772    

DOI:10.1111/j.1365-2273.1981.tb01797.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

ISSN:0307-7772    

DOI:10.1111/j.1365-2273.1981.tb01798.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY