PubMed Health⌕ Search

Biomedical subjects

W Kumpf

Publications and source records attributed to W Kumpf.

At least 19 recordsLinked to original sources
PubMed1991

[Observations on documentation and recording of audiometry results].

The article deals with various aims of documentation of results in audiometry and the influence of audiometer design on the outcome or execution of documentation and graphical representations. Recorded data should always be complete and unequivocal in respect of the intended aims. Didactic purposes and proof of plausibility may require more data than just the final results. External users of audiograms may require additional legends. Documentation by computer can be only as variable as the scope of the equipment permits. It seems that at the present time manual recording still has its merits.

Audiometry↗
PubMed1989

Tinnitus remission objectified by neuromagnetic measurements.

In a previous paper of ours (Hoke et al., 1989a) the hypothesis was put forward that the amplitude ratio of the two major waves of the auditory evoked magnetic field (AEF), M200/M100, is an objective measure which allows to discriminate between individuals suffering from tinnitus (ratio less than 0.5) and individuals without tinnitus (ratio greater than 0.5). We have now been able to trace the process of tinnitus remission in one exemplary case during a period of 256 days after acute onset of tinnitus (due to a noise trauma), in which the amplitude ratio recovered from 0 to a normal value of approximately 1. This very first objectification of tinnitus remission strongly supports our hypothesis and indicates that AEF may become an indispensable, invaluable tool in both tinnitus research and management.

Acoustic Stimulation↗
PubMed1988

[Listening to music in hearing loss with and without a hearing aid].

By means of a questionnaire it was investigated how in individuals who had previously had normal hearing deafness influences their pleasure and habits in listening to music, and which role a hearing aid can play in this respect. Out of 330 questionnaires returned, 206 could be statistically evaluated. 95% reported that formerly they had liked music, light music coming from the radio being the most frequently mentioned type of music and medium. 36% had formerly played an instrument or had enjoyed singing. 79% feel that their deafness has affected their pleasure in listening to music. Most common complaints refer to the fact that everything sounds distorted and wrong, melodies cannot be recognised any longer, the text of songs is not understood. 60% are fitted with one hearing aid, 40% have binaural hearing aids. 67% report that the hearing aid has rendered listening to music again more pleasurable, and 74% use their hearing aid more or less regularly when listening to music. The distorted sound and the fast alternating between "too soft" and "too loud", forcing the subject to continually adjusting his hearing aid, seem to be among the most annoying features.

Adolescent↗
PubMed1979

[The clock at the audiometer (author's transl)].

The latencies of on- and off-responses on tonal stimuli have been measured by a pair of electronic clocks. Short responding times have not been forced and interaction between audiometrist and subjects has been perserved. Experienced probands and patients reacted by lengthening of reaction time near threshold and near thresholds in masking noise. In most cases stimuli at threshold levels have not been responded completely. Recruitment is not the only possible cause for short latencies at threshold levels.

Audiometry↗
PubMed1978

[Functional hearing loss in speech audiometry (author's transl)].

In a group of 238 patients assessed for medico-legal reasons, 26 subjects were found to have functional hearing problems. In detecting the presence of functional hearing loss, the reliability of speech audiometric patterns was shown. Each patient demonstrated at least one suspicious response. The evaluation revealed an irregular configuration of curves ("step-like", 56%) and a better understanding for monosyllabic testwords than for digits (28.8%) as the most important criteria. In the control group of 40 hard-of-hearing patients without functional hearing losses, testing-irregularities were found in only 2.5-3.7% of the patients. Furthermore, discrepancies between speech reception thresholds and pure tone averages (84.6%) as well as poor test-retest reliability in tone audiometry contributed to an identification of functional hearing loss. Békésy-audiometry Type V was obtained in 73% of those patients studied.

Adult↗
PubMed1977

[Results of the SISI test and Békésy audiometry in pseudohypacusis (author's transl)].

The terminology of pseudohypacusis is used for the syndrome of gaps between possible audiometric response and performance in testing. No etiology in psychological terms is defined for pseudohypacusis, although monetary compensation has been considered as a possible factor. SISI ratings of 0% in most instances (ranging to a maximum of 25%) have been observed. Békésy-audiometry produced Types I, II, IV and V tracings as well as unclassified curves, although the type V tracing is most commonly found. Results of fixed frequency Békésy-audiometry have also shown a shift of curves for continuous and interrupted tones (called "Type VI"). In some cases Type V and Type VI tracings were found in the same ears. The causes and psychoacoustic phenomenon involved remain unexplained.

Audiometry↗
PubMed1976

[Aggravation of hearing loss (author's transl)].

Functional hearing loss is defined as a syndrome in which audiologic responses are found lacking. Such phenomena are related to capacities of the auditory system which are not fully understood (and include constant functional threshold levels as well as decreasing functional overlay with steeper discrimination scores). Examples are given for symptoms which characterize functional hearing losses, and variable timing for degrees of functional hearing loss described. In addition, etiologic factors are tabulated from a literature survey.

Audiometry↗
PubMed1975

[SISI-Test and functional hearing loss (author's transl)].

The original SISI test (Jerger, Shedd and Harford) is described in German language. Modifications of various authors are cited. The results of SISI test with 16 persons demanding monetary compensation for hearing loss are tabulated. 18 ears seemed free from non-organic overlay. 12 of those ears gave SISI scores more than 70%. Functional discrepancies wer observed in 13 ears. Only in one of them a maximum SISI score of 25% was presented. All other non-organic ears gave lower ratings, 0% in most cases. Increments of 5 dB were not responded with 5 ears. In one case of unilateral non-organic loss SISI scores were high in the normal and low in the aggravating ear. It is suggested therefore, that low SISI ratings should arise suspicion of non-organic problems, besides of retrocochlear site.

Adult↗