摘要:

The irregular epithelial layer which delimits the intermediate part of the endolymphatic sac, and the surrounding perisaccular tissue, were examined morphologically in the guinea pig by transmission electron microscopy. Specialized areas of the epithelium which have previously been designated as ‘non-vascularized epithelial processes’ (NVP) were constantly observed. These proliferative areas showed a close topographical relation to the free luminal cells and contained an abundance of lymphoid cells. Lymphocytes and macrophages were intimately associated with each other in a manner similar to that seen in these two types of cells in antigen-stimulated lymphoid tissues. There was a marked degeneration and phagocytosis of cells. The richly vascularized perisaccular tissue was rich in plasma cells, monocytes, mast cells and lymphocytes. The latter could be seen to migrate through the endothelial cells in the thin post-capillary venules into the sac tissue. The authors consider that the endolymphatic sac plays a role as an immunological defence organ for the internal ear. A hypothetical model concerning circulation and turnover of certain of the free intraluminal cells in presen

ISSN:0301-1569    

DOI:10.1159/000275458

出版商:S. Karger AG    

年代:1979

数据来源: Karger

摘要:

A total of 938 healthy 3-year-old children, divided into two unselected cohorts within the same geographic area, had tympanometric screening and re-screening. The results were assessed according to the parameters: season and the way the children were cared for. In all tests children in day-care centres had the highest prevalence of secretory otitis and tubal dysfunction due rather to an excess of long courses of illness than of an increased incidence. Regardless of the season, 8–13% of all children in day-care centres exhibited persistent secretory otitis through 6 months as compared with 2–4% of children not attending day-care centres. The lowest morbidity rate and the shortest course was found in children cared for at home whose tympanometric results were also to a marked extent independent of the season. Children in family day-care had results which in summer corresponded to those in children cared for at home and in winter approximately to those in the day-care centres. The theoretical and practical implications of the findings are discus

ISSN:0301-1569    

DOI:10.1159/000275459

出版商:S. Karger AG    

年代:1979

数据来源: Karger

摘要:

A method of nystagmus analysis has been developed for clinical and research purposes. Optimum flexibility of analysis is indicated to cope with the problematic signals frequently encountered in pathology. Different modes of analysis may be obtained, varying from fully automatic to step-by-step interactive analysis. Artifact detection and rejection is performed by means of regression analysis with some additional condition tests. The default conditions may be modified or inactivated. A variety of output and display facilities may be used, including permanent storage of adequately labelled retrievable nystagmus data.

ISSN:0301-1569    

DOI:10.1159/000275460

出版商:S. Karger AG    

年代:1979

数据来源: Karger

摘要:

Immunoreactive vasoactive intestinal polypeptide (VIP), a recently recognized neuropeptide with a possible transmitter function has been demonstrated in nerves of the human upper respiratory tract. VIP nerves predominate in the inferior turbinate of the nose and in the tracheal wall. They are distributed in the subepithelial connective tissue, around blood vessels and seromucous glands. Scattered VIP nerves are observed also in the tracheal smooth muscle. VIP immunoreactive nerve cell bodies are found only in the tracheal wall, suggesting a local origin of the VIP nerves in this organ. Available information indicates that the VIP-containing nerves constitute a separate component of the autonomic nervous system in addition to the adrenergic and cholinergic ones.

ISSN:0301-1569    

DOI:10.1159/000275461

出版商:S. Karger AG    

年代:1979

数据来源: Karger

摘要:

During the years 1969 – 1976 214 patients with malar bone fractures were treated. A retrospective study was carried out and a follow-up by the aid of a questionnaire.The clinical judgement at 1 week after surgery showed good results. The follow-up study revealed, however, a poorer picture. Among the surgically treated patients who answered the questionnaire, 89 of 143 reported different complaints. Anaesthesia in the check and diplopia were the most common complaints. It seems anyhow that the process of regeneration of the sensible nerve takes longer than predicted. The pre-operative evaluation of the eye motility is of utmost importanc

ISSN:0301-1569    

DOI:10.1159/000275462

出版商:S. Karger AG    

年代:1979

数据来源: Karger

摘要:

The extracranial occurrence of meningiomas is summarized. A patient suffering from repeated episodes of epistaxis presented with a lobulated nasal polyp which was found to be a meningioma. At subsequent radical removal, the extracranial location in the nose, ethmoidal region and cribriform area was verified.

ISSN:0301-1569    

DOI:10.1159/000275463

出版商:S. Karger AG    

年代:1979

数据来源: Karger

ISSN:0301-1569    

DOI:10.1159/000275464

出版商:S. Karger AG    

年代:1979

数据来源: Karger