摘要:

At reevaluation 3–8 years after treatment of secretory otitis with tubulation and adenotomy, 55% of 527 ears had various pathological changes in pars tensa. Atrophy was found in 21%, atrophy with retraction and pexi to the inducostapedial joint in 3%, and adhesive otitis in 2.5% of ears. Tympanosclerosis was found in 19% and a combination of tympanosclerosis and atrophy was found in 9% of ears. The causes of atrophy and tympanosclerosis are discussed. The investigation indicates that atrophy is caused by a long-lasting negative pressure before and after treatment. Tympanosclerosis is a direct sequelae of the chronical inflammatory processes in the middle ear, leading to increase in the number of fibrous fibers which later hyalinize. Tubulation is not responsible for the pathological changes in pars tens

ISSN:0301-1569    

DOI:10.1159/000275465

出版商:S. Karger AG    

年代:1979

数据来源: Karger

摘要:

The Eustachian tube function was studied during simulated descents and ascents in 5 experienced divers, all known to have a good capacity for equilibrating static pressure differences across the ear-drum. Their ability to equilibrate by deglutitions during descents was greatly reduced in the recumbent as compared with the sitting position, and when tilted with the head downwards no one could equilibrate completely. The pressure level required to passively force the Eustachian tubes open during ascent was recorded higher in recumbency and still higher when the subject was tilted as compared with the sitting position. The pressure level in the rhinopharynx required to force the Eustachian tubes open during Valsalva’s manoeuvre was also higher in the recumbent and tilted positions. It was also observed that a higher speed of pressure increase in the rhinopharynx resulted in a higher pressure level for passive opening of the tube

ISSN:0301-1569    

DOI:10.1159/000275466

出版商:S. Karger AG    

年代:1979

数据来源: Karger

摘要:

Juvenile angiofibroma of the nasopharynx is a rare benign tumour which occurs in young males. The purpose of this report is to review juvenile angiofibroma and describe 7 cases treated by surgery during the years 1971–1977. Radical surgical therapy has consistently given positive results and should be regarded as the routine method of treatment. Radiotherapy should only be considered when intracranial tumour spread is presen

ISSN:0301-1569    

DOI:10.1159/000275467

出版商:S. Karger AG    

年代:1979

数据来源: Karger

摘要:

Bilateral asynchronous growth of acoustic neuromas in neurofibromatosis induces a peculiar clinical picture of different, seemingly independent, and sometimes isolated neuro-otological symptoms. When peripheral symptoms of neurofibromatosis are missing, a definite diagnosis is possible only after detailed neuro-otological assessment followed by neurological and neuroradiological examinations.

ISSN:0301-1569    

DOI:10.1159/000275468

出版商:S. Karger AG    

年代:1979

数据来源: Karger

ISSN:0301-1569    

DOI:10.1159/000275469

出版商:S. Karger AG    

年代:1979

数据来源: Karger

ISSN:0301-1569    

DOI:10.1159/000275470

出版商:S. Karger AG    

年代:1979

数据来源: Karger

ISSN:0301-1569    

DOI:10.1159/000275471

出版商:S. Karger AG    

年代:1979

数据来源: Karger

ISSN:0301-1569    

DOI:10.1159/000275472

出版商:S. Karger AG    

年代:1979

数据来源: Karger

ISSN:0301-1569    

DOI:10.1159/000275474

出版商:S. Karger AG    

年代:1979

数据来源: Karger