Audiological assessment of unilateral deafness.

Unilateral deafness constitute medical (aetiological diagnosis, treatment, hearing aid fitting) and social problems (no certification of disability). Following audiological examinations were performed in the study: pure tone audiometry (PTA), impedance audiometry, auditory brainstem responses (ABR), otoacoustic emissions (OAE), as well as balance, taste, examinations and electric sensitivity of the acoustic nerve. In cases of tinnitus the parameters of its character were done.

[Dysphagia and speech disorders].

Swallowing disorders in oral and pharyngeal phase after surgery of mouth, pharynx or larynx are very often interrelated with speech and voice disorders. The results of diagnostic methods of dysphagia and voice/speech disorders based on own material of patients after total laryngectomy, partial tongue resection and cleft palate surgery were presented. Attention was also paid to other etiological factors of swallowing disorders observed in phoniatric practice.

The acoustic analysis of voice in patients with multi-channel cochlear implant.

The acoustic analysis of the voice was performed in 5 implanted patients (2 children and 3 adults). This analysis was made twice in each patient one week before the implantation and the second time at least three months later. The examination was carried out using the KAY Electronics 4300 instruments and the MDVP program.

[The Poznan program of the treatment of deafness by multichannel cochlear implants].

The authors presented 5 deaf patients with postlingual deafness and application of cochlear implant "Nucleus Mini System 22". In details operative technics and postoperative proceeding were described as well as rehabilitation results in 3-6 months after operation. The authors consider, that in adults with postlingual deafness, application of cochlear implants were giving very good effects.

[Pharmacological possibilities in treatment hypoacusis in children].

The purpose of this work was to present the dynamics of hearing thresholds and the progress in rehabilitation of hearing and speech according to the treatment applied and probable etiological factor of hypoacusis. Two groups of children were examined. The first group consisted of children with deep sensorineural hypoacusis together with central component of hypoacusis, whereas the second group included children with sudden occurrence of hypoacusis or detorioration of diminished hearing ability.

[The first experience in diagnosis and rehabiliation in patients with cochlear implant "Nuclear Mini System 22"].

The first qualification for cochlear implant "Nucleus" was performed on the basis of audiological tests. Next stage was conversation with a patient and his family about motivation of longterm rehabilitation. Then the two very important investigations were carried out--the computer tomography which showed inner ear structure, and electric promotory test.

Electromyography of cricopharyngeal muscles in patients with oesophageal speech.

Subject for the examination were 30 patients who during total laryngectomy had had two silver clips for haemostasis inserted into the cricopharyngeous muscle about 3 cm from the sewing place in the midline, facilitating the location of the muscle and the placing of a needle electrode. Twelve to 18 months after laryngectomy and phoniatric rehabilitation, electromyographic examinations were performed. Each EMG recording was evaluated as to amplitude, discharge frequency and time duration of muscle electric activity.