摘要:

The problem of the perilymph origin – influx of cerebrospinal fluid (CSF) versus ultrafiltration within the cochlea – cannot be solved by mere qualitative proofs of tracer passage through the cochlear aqueduct. In order to gain quantitative data on the possible perilymph sources, an experimental study was designed to follow the time course of dye concentrations in the cisternal CSF and in the perilymph after tracer injection into the CSF at the vertex. By comparing the resulting concentration peaks in both fluids, the mean peak of the perilymph tracer concentration was found to reach 36 % of the maximum CSF concentration only. It is concluded that the local perilymph production within the cochlea exceeds the influx of CSF by a ratio of about 2:1. A working hypothesis of the double perilymph origin is discus

ISSN:0301-1569    

DOI:10.1159/000275275

出版商:S. Karger AG    

年代:1976

数据来源: Karger

摘要:

A device is discussed in which tubal opening as one of the functions of the Eustachian tube can be measured by expressing the opening phenomena acoustically. The features of the present device are the following: introduction of the test sound of 2,000 Hz, 85 dB, SPL, directly to the tubal opening through the tubal catheter and recording of fluctuations of the sound pressure obtained at the external auditory meatus during swallowing. The results of model experiment made of resin were 85 dB, SPL, at the speaker, 76 dB, SPL, at the end of tubal catheter and 78 dB, SPL, at the external auditory meatus. In the model experiment it was also demonstrated that the height of spike waves depends on the extent of tubal opening and that the continuity of spike waves depends on the duration of tubal opening. Furthermore, in the present method, there was no so-called basic amplitude, seemingly due to the resonant effects or the direct passing sound, and the opening phenomena were correctly expressed. In the measurement on normal adults it was found that variability of the spike wave pattern between subjects was largely depending on individual subjects, and also some intra-subject variability of successively recorded spike waves on the same subject was noted. It was shown that gradual recovery of spike wave patterns occurred from initial water swallowing to successive dry swallowing.

ISSN:0301-1569    

DOI:10.1159/000275276

出版商:S. Karger AG    

年代:1976

数据来源: Karger

摘要:

A vertigo perceived as a spinning sensation outside the head indicates a somatic vestibular disturbance including a Ménière’s disease. A turning sensation inside the head indicates a functional or vascular disorder while a sensation of unsteadiness often as if being slowly rocked indicates a functional disor

ISSN:0301-1569    

DOI:10.1159/000275277

出版商:S. Karger AG    

年代:1976

数据来源: Karger

摘要:

An increase of α-amylase concentration and specific amylase activity (correlated to protein content) was evident already after 3 days in the parotid glands of rats treated with 2×2 mg/day of propranolol hydrochloride. After separation of amylase into isoenzymes, only the specific isoamylase activities were enhanced. In contrast to treatment with a guanethidine derivative (guanoxane), these changes have persisted after 3 weeks. On the strength of these results, functional inhibition of the salivary glands (i.e. blockade of secretion by β-sympatholytic agents) is discussed as a therapeutical possibility for the management of sialosis and sialoadenit

ISSN:0301-1569    

DOI:10.1159/000275278

出版商:S. Karger AG    

年代:1976

数据来源: Karger

摘要:

The present paper reports 21 cases (14 autopsies and 7 biopsies) of associated primary cancers of the larynx and the lung. This association is by no means uncommon, the laryngeal lesion being usually the first to appear. Multiple primary cancers – of the same or of a different histologic type – tend to occur in the same organ or organ system, either simultaneously or after a time interval. In case of synchronous primary malignant tumour of the larynx and lung, the most lethal cancer (the lung cancer) must be managed first. Cancer patients are more likely than other individuals to develop a second primary malignant tumour. Laryngectomized patients should be followed-up possibly by means of cytologic examinations of bronchial secretions and chest X-rays at short intervals for early detection of a possible second primary malignant pulmonary les

ISSN:0301-1569    

DOI:10.1159/000275279

出版商:S. Karger AG    

年代:1976

数据来源: Karger

摘要:

The concentration of various immunoglobulins in the faucial tonsil was determined and expressed as a portion of the total protein content. The highest levels were those of IgG. The concentration of IgA rises with age while that of IgM falls. IgE was found to be relatively high and the highest levels of all immunoglobulins examined were noted in hypertrophied tonsils. They were lowest in the atrophic tonsils of children and in adult tonsils. The results are discussed in their relevance to the overall immunological function of the faucial tonsil.

ISSN:0301-1569    

DOI:10.1159/000275280

出版商:S. Karger AG    

年代:1976

数据来源: Karger

ISSN:0301-1569    

DOI:10.1159/000275281

出版商:S. Karger AG    

年代:1976

数据来源: Karger

ISSN:0301-1569    

DOI:10.1159/000275282

出版商:S. Karger AG    

年代:1976

数据来源: Karger