The improvement of the effectiveness of the rehabilitation of the patients with hearing disorders is a priority task for an audiologist. One part of the present work was to assess satisfaction of the patients treated with the use of the hearing aids, drug therapy, and the surgical operations. The aim of the study was to evaluate the influence of the implantation of the Baha bone conduction system on the quality of life of the treated patients. The Russian-language versions of the Glasgow Benefit Inventory and Glasgow Children Benefit inventory questionnaires were used. The survey was conducted among the patients with bilateral moderate and moderate-to-severe conductive hearing loss due to congenital malformation of the external and middle ears or chronic suppurative otitis media followed by canal-down operation. A total of 47 patients took part in the present multicenter study. The results demonstrate the high effectiveness of rehabilitation with the use of the implantable bone conduction system. The beneficial effect of the treatment was especially well apparent in the children. The results are comparable with the data of the similarly designed investigations reported in the literature. Peculiarities of the data obtained in the present study and statistical characteristics made it possible to validate the Russian-language versions of the Glasgow Benefit Inventory and Glasgow Children Benefit inventory questionnaires.

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Rehabilitation of the patients suffering from with congenital malformations of external and middle ear is a specific area of medicine requiring special knowledge and skills of the audiologists and ear surgeons. This article highlights the issues of epidemiology, classification and methods for the rehabilitation of patients presenting with this pathology that reflect our own experience and the methodology based on it for all phases of both functional and aesthetic surgical inerventions. Special attention is given to the assessment of the effectiveness of the treatment, as part of the evaluation of the quality of medical services. The results were demonstrated in 56 patients aged from 5 to 17 years. 32 of them underwent reconstructive, hearing improving surgery (meatotympanoplasty), 24 patients were managed by means of the implantation of the bone-anchored hearing systems. The assessment of the effectiveness of the treatment was conducted according to the algorithm developed by the authors, including free field pure tone audiometry and validated questionnaires for the assessment of the quality of life (the Glasgow Children's Benefit Inventory).

The TEOAE was not registered in 17 of the 62 examined children. According to the results of the comprehensive audiological examinations, 13 children suffered from the hearing loss of different forms and severity while 5 children presented with bilateral deafness. As the duration of CRF progressed, the patients became more prone to develop hearing impairment. Hearing loss is possibly genetically determined. Among the etiological factors underlying the development of the hearing loss the high doses of immunosuppressants and aminoglycosides are considered to be the principal ones.

It is can be concluded that the reoperation after primary cochlear implantation is a highly effective technique and, taking into account the listed features, doesn't present difficulties for the qualified otosurgeon.