INTRODUCTION: The aim of this work was to assess the value of impedance audiometry in the differential diagnostics of @entity2167 , especially in @entity1 suffering from @entity392 . MATERIAL AND METHODS: The analysis dealt with results of the audiological tests in 198 @entity1 (116 female and 82 male), hospitalised in 2007 due to their @entity393 , @entity392 or @entity2459 . The conducted audiological tests covered threshold and suprathreshold pure tone audiometry, speech audiometry, BERA and impedance audiometry. RESULTS OF THE STUDIES: @entity1 (58.5%) and @entity1 over 50 years old (58.6%) constituted the majority of the @entity1 . In 166 (83.8%) @entity1 the conducted tests via impedance audiometry did not prove any deviations from the normal condition, the lesions referred to both ears in 32 (16.9%) @entity1 and one ear in 17 (8.5%) @entity1 . An incorrect tympanogram was found in 23 @entity1 , including type As in 11, type Ad in 2, type B in 4 and type C in 6 subjects. Low values of acoustic receptivity of the middle ear were noted in 20 ears, whereas high values in 11 ears. In 3 ears we found low values of the gradient (below 0.3), high values--in 11 ears. The middle ear pressure between -170 and -350 daPa was noticed in 20 ears, and positive values, above +50 daPa up to +75 daPa, in 3 ears. Disorders in the stapedial reflex registration were observed in 38 (19.1%) @entity1 . The assessment of the conducted subjective and objective audiological examinations allowed to recognise bilateral perceptive @entity393 in 139 @entity1 , including 49 (25.9%) of cochlear origin with OWG, in further 70 @entity1 the @entity393 referred to higher frequencies and was rather slight. CONCLUSIONS: The own experiences indicated that the impedance audiometry constitutes the integral part of contemporary audiological diagnostics and still remains an objective method facilitating quick, non-invasive evaluation of the functions of particular elements in the middle ear.

[The value of impedance audiometry in the XXXX diagnosis].

@entity1 :: ('9606', 'Species') :: ['patients', 'Women', 'people'] @entity2167 :: ('MESH:D006311', 'Disease') :: ['hearing disorders'] @entity392 :: ('MESH:D014012', 'Disease') :: ['tinnitus'] @entity393 :: ('MESH:D034381', 'Disease') :: ['hearing loss', 'hearing injuries', 'hearing deterioration'] @entity2459 :: ('MESH:D003639', 'Disease') :: ['sudden deafness']
@entity393 :: (MESH:D034381,Disease) :: ['hearing loss']
