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Biomedical subjects

A Pruszewicz

Publications and source records attributed to A Pruszewicz.

At least 37 records · Page 2Linked to original sources
PubMed1999

[Electrophysiological hearing examination in children and teenagers with insulin-dependent diabetes mellitus].

In 60 children and youngsters aged 14-19 (average 16.5) with insulin dependent diabetes (lasting on average 5.5 years) and normal hearing in pure tone audiometry electrophysiological examinations (ABR, SP) were performed; 48% of the cases revealed changes in latencies of I, III, V waves, especially as an elongation of I and V waves. In the peripheral interlatencie (III-I; V-I) shortening and in V-III elongation were observed. In SP examination most often shortening of N1 (67%) and P2 (87%) were found. Statistically significant dependence of latency changes on the state of metabolic balance was stated. It was not found referring to the duration of diabetes, age and gender of the patients.

Adolescent↗
PubMed1998

[Voice acoustic analysis in patients with a hearing aid or cochlear implant].

The subject of our study was two groups of patients with hearing disorders: 23 cases implanted with multi-channel cochlear device (Nucleus Mini System 22) and 10 patients with perceptive hypoacusis who used hearing aids. The voice acoustic analysis was performed before cochlear implantation or application of a hearing aid and after a 6-month rehabilitation period. The acoustic analysis was carried out by means of a laryngophone connected to KAY 4300 instrument. The estimation of acoustic parameters of a laryngeal tone during rehabilitation process as well as parameters of spectrographic analysis was presented with the use of MDVP and CSL. Voice acoustic analysis can be an objective evaluation of progress in voice and speech rehabilitation process of patients with hearing disorders, particularly small children.

Adolescent↗
PubMed1997

[Psychophysical and objective investigation of hearing in presbyacusis].

In 30 individuals aged 50 to 82 the following audiologic examinations were performed: tonal audiometry (air/bone conduction), impedance audiometry (tympanometry and registration of stapedius reflex to pure tone of 0.5-4 kHz and noises) and ERA tests after acoustic stimulation from different levels of the hearing pathway (BERA, MLR and SP). The assessment of the results showed:--1. the threshold values in the objective methods are proportional to those obtained in tonal audiometry;--2. in ERA an interpersonal lability of latencies at different levels of the hearing pathway was observed including shortening, elongation and normal values;--3. in 70% of the examined aged 50-82 SRT were below 70 dB SL and loudness sumation below 25 dB;--4. shortening of the SP latencies was in 100% correlated to the low values of the loudness summation and recruitment found in psychophysical examinations.

Acoustic Impedance Tests↗
PubMed1996

Hard-of-hearing children: factors negatively influencing rehabilitation.

In 78 hard-of-hearing children born in 1983-1985 a set of 14 factors influencing the rehabilitation result negatively was analyzed. As a measure of the success of rehabilitation of the children we employed the sufficient mastery of speech to start education at a public school. Unsuccessful results (statistically significant) were due to the following factors: severity and late diagnosis of hearing loss, late rehabilitation onset, diminished care of parents, delayed intellectual development and additional organic impairments and deafness of the parents.

Audiometry, Pure-Tone↗
PubMed1996

[Comment on the organization of the hearing screening in children].

The necessity of the early detection of hearing loss in children in order to start possibly early the acoustic stimulation of hearing organ is pointed out. The suggestions of the hearing screening based on the register of risk factors, behavioral audiometry, impedance audiometry and electrophysiological examination (evoked otoacoustic emission, evoked brain stem response audiometry) are presented.

Acoustic Impedance Tests↗
PubMed1996

[Language tests for the examination of nasal resonance].

A set of 7 word tests with different number of nasal phonemes was prepared. These tests are adjusted to technical possibilities of nasal resonance examination by means of own construction apparatus. The VII-th test consisting only oral speech sounds appeared to be most important for estimating physiological nasal resonance characteristic for the Polish language and gave individual timbre of the voice. For Polish language these resonance rate is 15.2%. It is useful as reference data to evaluate patients with pathological nasal resonance. The VII-th test together with the V-th one which contain 6.3% of nasal consonants, and the VI-th with 33.3% of them were used for detailed evaluation of nasal resonance.

Child↗
PubMed1996

[Materials for the training of hearing based on phonetic-acoustic features of the Polish language].

Even a careful fitting of hearing aid cannot always guarantee full recompensation for lost hearing. Although speech is significantly strengthened by the hearing aid, the received signals sound slightly differently. To take full advantage of hearing aid capacity and to understand speech better, it is necessary to carry out exercises within the hearing training. The aim of the exercises is to acquire perceptive differences appearing between particular speech sounds. Each exercise deals with particular phonetic distinctive feature differentiating the speech sounds of the Polish language. Language substance comprises the so-called minimal pairs: pairs of words which differ only by one speech sound e.g. park, kark. Preservation of identical phonetic structure within remaining parts of words allows for the exposure of sound differences referring to selected speech sounds. First exercises with children who lost hearing in the prelingual period should be carried out for a period between a few weeks to a few month with the cooperation and under a supervision of a specialist (logopedics or surdopedagogics).

Hearing↗
PubMed1996

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 comparison of the results showed: decreased F0 value of phonation tone after the surgery in all patients; mean values of jitter and shimmer were increased in relation to norm before and after the surgery in adults and children; the gap between harmonic signal and noise (NHR) was within norm in 2 adults, and in 1 child with prelingual deafness significantly decreased after the surgery. The acoustic analysis of voice of cochlear implant patients, especially children, may be the objective evaluation of progress in speech and hearing rehabilitation. In the process of rehabilitation tendencies pointing out to the normalization of voice especially in patients with prelingual deafness was observed.

Adult↗
PubMed1995

[Voice and spirometric examinations in patients after laser arytenoidectomy].

Spirometric, phoniatric and acoustic investigations were performed in 13 patients after laser arytenoidectomy due to bilateral vocal cord paresis. Phoniatric examination included voice recording, average level and voice range, time of phonation, laryngoscopy and stroboscopy. Acoustic analysis covered harmonic structure of the voice, jitter, shimmer, noise component, basic frequency.

Adolescent↗
PubMed1995

[CT examination of the temporal bones for cochlear implantation].

CT examinations of temporal bones were performed in 31 deaf patients from qualify diagnostic stage prepared for cochlear implants. Essential for surgical treatment anatomic details were estimated, especially canalis spiralis cochleae was paid to attention. In our group, 8 patients had some CT changes (abnormal findings) which corresponded to different stages of obliteration the cochlea. The majority of patients lost the hearing because of meningitis. In 6 implanted patients CT scan was compared with surgical findings. During the operation 1 patient with patent cochlea on CT scan had partially ossified basal turn.

Adolescent↗
PubMed1994

Acoustic evaluation of voice in individuals with alcohol addiction.

The object of the study was the acoustic analysis of voice in individuals with alcohol addictions. The analysis showed an increase in medium and maximum jitter values, weakening of signal harmonic structure and an increase in periodical course occurrence with noise. All parameters of voice analysis in patients with alcohol addiction were compared with those of the control group.

Alcoholism↗
PubMed1994

[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. In rehabilitation process original "Nucleus" partially modified and Polish linguistic articulation lists were used.

Adult↗
PubMed1994

[The application and usage of the bone-anchored hearing aids (BAHA)].

This article describes the mode of operation of temporal bone-anchored hearing aids (BAHA) based on the phenomenon of osseointegration, and the otiatric and audiologic criteria used in the selection of patients for implantation of this device. The technical details of the two-step implantation of a titanium anchor for BAHA within the mastoid process are described. The difficulties associated with this procedure are analyzed based on our own experience with implants placed in 3 patients.

Equipment Design↗
PubMed1994

[New articulation lists for speech audiometry. Part I].

Ten articulation lists for speech intelligibility testing and evaluation of hearing impairment type have been constructed. Each list contains 24 from among the most frequent monosyllabic Polish nouns. The lists are balanced phonemically, semantically, acoustically and structurally.

Audiometry, Speech↗
PubMed1994

[New articulation lists for speech audiometry. Part II].

Ten articulation lists for speech intelligibility testing and evaluation of hearing impairment type have been constructed. Each list contains 24 from among the most frequent monosyllabic Polish nouns. The lists are balanced phonemically, semantically, acoustically and structurally.

Audiometry, Speech↗
PubMed1994

[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 group received a treatment with a drug stimulating the function of central nervous system, Cerebrolysin (Minden, D), whereas the other one underwent typical therapy applied in case of sudden deafness (mannitol, hydrocortison, vitamins, enzymes). Both the groups were subjected to objective examination of hearing before and after the treatment. The improvement in examination results in the first group was observed in 36%. In patients suffering from sudden deafness the improvement in hearing after treatment was found respectively in 30%.

Amino Acids↗
PubMed1994

[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.

Adult↗