[Current trends in stapedial surgery].
The authors discussed their experiences of otospongiosis++ surgery in 949 patients as regards to technical differences, final results and complications. The review of literature was also described.
Biomedical subjects
Publications and source records attributed to B Latkowski.
The authors discussed their experiences of otospongiosis++ surgery in 949 patients as regards to technical differences, final results and complications. The review of literature was also described.
The authors described the results of distant field registration of evoked responses from the vestibular part of acoustic nerve. The investigations were carried out as a preliminary pilot study and were successful in obtaining the repeatable responses in guinea pigs. The detailed informations about the stimulation, reception and average technique equipment were enumerated. The variant proposition of the extraction of side motor disturbances was done.
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Sonometric and dosimetric measurements of noise at a dozen workplaces of three divisions in a refinery-petrochemical plant have been made. The equivalent level allowable with a view to hearing protection was found to be exceeded by 1-3 dBA at some workplaces. The tonal audiometric test was used to determine threshold levels for 250-8000 Hz frequencies in 122 workers. The present acoustic conditions at the test workplaces do not pose a risk of a significant hearing loss. Only a slight high-frequency hearing loss which might result from noise exposure was diagnosed. Not a single case of occupational hearing impairment conformable with the mandatory diagnostic and certificatory rules was reported.
The modified Pohlman sound probe was used to provide a prognostic evaluation of the results of surgery in otospongiosis by means of transtympanic exploration. Based on the reactions obtained with this probe, it is possible to recognize theoretically the degree of cochlear involvement 'direct bone conduction coefficient' and to indicate which component of the hearing defect - conductive or perceptive - prevails in a given case of otospongiosis.
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The authors have presented results of examinations of the smell and taste senses in 547 petrochemistry, workers, and 100 cotton industry workers composing a control group. In both groups, those aged 26 -- 35, with long duration of employment, predominated. In the primary group i.e. petroleum chemistry workers, dysgeusia has been found in 319 (58.3%) subjects with no reaction at all in 102 (18.6%) persons. Hyposmia has been found in 238 (43.5%) and anosmia in 50 (9.2%) subjects. In the control group, dysgeusia has been found in 69%, whereas anosmia in 24% of subjects.