B Welleschik

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Tonsilloadenoidectomy performed on an 8-year old girl, in the course of which heavy bleeding from the left niche was staunched by suture ligation, was complicated from the 7th day onwards by severe haemorrhages at intervals from 5 to 25 days, causing life-threatening hypovolaemia. Haemorrhages started mostly in the early morning hours and ceased(More)
Measuring curves and psycho-acoustical measurements are used for an investigation of the extent to which the bone-conduction hearing aid is equivalent to the air-conduction hearing aid. It can be shown that basically there is no objection against the use of a bone-conduction hearing aid (ear-level aid) for patients suffering only from sound-conduction(More)
The paper deals with the investigations carried out into the effects of the exposure level on the hearing thresholds in the range of 0.5--4 kHz. The investigations are based on the data of 25,544 workers exposed to noise at their working places ("noise workers"). The hearing thresholds at 0.5 and 1 kHz practically do not differ in any level class nor do(More)
Experimental data on the influence of test frequency on the SISI-score are controversial. Comparability is limited by the diversity of experimental conditions. In a series of cases of pancochlear sudden hearing loss SISI-scores at 0.5 kHz and 3 kHz were compared. Some examples show that the sensitivity of the SISI-test at 0.5 kHz is much lower to that at 3(More)
  • B Welleschik
  • 1980
The paper discusses the question of which factors that are to be taken into consideration are of relevance to the expert in making his differential diagnosis in cases of occupational hearing loss. On the basis of the medical literature and earlier investigations the discussion is concerned with the proof of recruitment as well as with the effects of the(More)
Otoliquorrhoea occurred during stapedectomy (gusher) and signified a case of inner ear malformation which was not apparent on preoperative tomograms but could be demonstrated on postoperative CT scans. There was no bony separation between the irregularly dilated inner auditory canal and the vestibulum. The cochlea was not fully rotated. Intraoperative(More)
The neuronal density in the spiral ganglion was investigated in normal and in streptomycin-intoxicated guinea pigs. Streptomycin was administered in a dose of 250 mg/kg for 21 days. 6 weeks after the streptomycin exposure a histological examination revealed a decrease in ganglion cell density in the spiral ganglion, with maximum loss in the apical portion(More)
The recent Worker's Protection Law entails an extension of the local precautions in industries with a high noise level. In order that the necessary duties can be better accomplished the Federal Ministry for Social Administration has appointed "authorized doctors". A large proportion of these colleagues are not ENT specialists. It was therefore necessary to(More)