[Significance of the SISI test within the scope of expert assessment of noise-induced hearing loss].
OBJECTIVE
Proof of cochlear hearing loss is an essential prerequisite for the diagnosis of noise deafness. For this purpose, the Königsteiner instruction leaflet (Königsteiner Merkblatt) recommends among other items the SISI test.


METHODS
The results of the SISI test at 1 and 4 kHz were analysed for 100 expert opinions of noise (200 ears).


RESULTS
10% of the subjects showed at 1 and 4 kHz a positive and 44% a negative result. At 1 kHz, 46% indicated a negative result and at 4 kHz a positive result. In the group with a negative SISI test at both frequencies, 74% demonstrated characteristics of pseudohypacusis. There was no correlation between a retrocochlear hearing disorder and a negative SISI test.


CONCLUSIONS
Our analysis demonstrated that the negative SISI test is more often evidence of pseudohypacusis rather than a retrocochlear disorder. Consequently, the validity of a negative SISI test is limited.
Micheely
M
M
HNO-Klinik, Westfälische Wilhelms-Universität Münster. martimy@uni-muenster.de
Schmäl
F
F
Nieschalk
M
M
Stoll
W
W
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001309:Auditory Threshold; D003937:Diagnosis, Differential; D005104:Expert Testimony / Q000331:legislation & jurisprudence*; D005260:Female; D006317:Hearing Loss, Noise-Induced / Q000175:diagnosis* / Q000209:etiology; D006320:Hearing Tests; D006801:Humans; D008297:Male; D008875:Middle Aged; D009623:Noise, Occupational / Q000009:adverse effects*; D012680:Sensitivity and Specificity
Die Bedeutung des SISI-Tests im Rahmen der Begutachtung von Lärmschwerhörigkeiten.