J. Ratyńska, A. Grzanka, M. Mueller‐Malesińska, H. Skarżyńśki, S. Hatzopoulos
{"title":"Correlations between risk factors for hearing impairment and TEOAE screening test outcome in neonates at risk for hearing loss","authors":"J. Ratyńska, A. Grzanka, M. Mueller‐Malesińska, H. Skarżyńśki, S. Hatzopoulos","doi":"10.1080/010503901300006949","DOIUrl":"https://doi.org/10.1080/010503901300006949","url":null,"abstract":"The aim of the study was to find the correlation between specific risk factors for hearing impairment as well as between risk factors and TEOAE screening results in neonates at risk for hearing impairment. Seventy-one newborns at risk for hearing impairment have been included in the study. Strong correlations between specific risk factors were found. Investigation of the relationship between specific risk factors and TEOAE signal-to-noise ratio (SNR) showed that in children with genetic risk factors, TORCH (toxoplasmosis, rubella, CMV, herpes virus, others) infections and in those treated with ototoxic drugs, the values of SNRs were significantly lower than in children at risk who did not present those factors. In case of hyperbilirubinaemic children the values of SNR were significantly higher than in the controls. In our opinion these relationships may be partially explained by the positive predictive values of these risk factors, but other intrinsic factors may also be involved.","PeriodicalId":76516,"journal":{"name":"Scandinavian audiology","volume":"30 1","pages":"15 - 17"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/010503901300006949","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59013509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Specht, Micheal Ganz, J. Pethe, S. Leuschner, J. Pytel
{"title":"Linear versus non-linear recordings of transiently-evoked otoacoustic emissions - methodological considerations","authors":"H. Specht, Micheal Ganz, J. Pethe, S. Leuschner, J. Pytel","doi":"10.1080/010503901300007263","DOIUrl":"https://doi.org/10.1080/010503901300007263","url":null,"abstract":"A non-linear technique is predominantly used for the recording of transiently-evoked otoacoustic emissions (TEOAEs). The aim of this study was to compare linear and non-linear TEOAE recordings. TEOAEs were recorded in 22 normal hearing subjects to clicks from 90 to 30 dB SPL in 10 dB steps with the ILO88 system using both linear and non-linear recording techniques. The non-linear recording technique reduces stimulus artifacts for early latencies, but total elimination could not be proved. Both artifact reduction and significant differences between the two kinds of TEOAE recordings were reduced for longer latencies and lower stimulus intensities. For longer latencies (>10 ms) there was no significant difference between ''linear'' and ''non-linear'' TEOAEs. A higher signal-to-noise ratio was found for ''linear'' TEOAEs, resulting in better identification and a higher test-retest correlation. The linear recording technique, which includes new methods of artifact cancellation in comparison to the mainly utilized non-linear recording technique, should be used especially in hearing screening.","PeriodicalId":76516,"journal":{"name":"Scandinavian audiology","volume":"30 1","pages":"116 - 118"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/010503901300007263","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59013683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Lucertini, F. Viaggi, F. Pasquazzi, G. Cianfrone
{"title":"Medico-legal use of otoacoustic emissions in the audiological selection process for employment","authors":"M. Lucertini, F. Viaggi, F. Pasquazzi, G. Cianfrone","doi":"10.1080/010503901300007353","DOIUrl":"https://doi.org/10.1080/010503901300007353","url":null,"abstract":"A 6-year experience of the Italian Air Force Medical Selection Centre in the audiological evaluation of candidates for employment is summarized. Otoacoustic emissions (OAEs) were introduced progressively from 1993 to analyse more effectively subjects affected with sensorineural hearing loss and reduce possible bias connected to standard audiometric tests. OAEs provided a useful tool to support pure-tone audiometry, providing more accurate audiological data. Finally, a reduction of medico-legal claims was observed in candidates undergoing OAE testing.","PeriodicalId":76516,"journal":{"name":"Scandinavian audiology","volume":"30 1","pages":"146 - 147"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/010503901300007353","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59013903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Sorri, K. Jounio-Ervasti, S. Uimonen, K. Huttunen
{"title":"Will hearing healthcare be affordable in the new millennium","authors":"M. Sorri, K. Jounio-Ervasti, S. Uimonen, K. Huttunen","doi":"10.1080/010503901316914584","DOIUrl":"https://doi.org/10.1080/010503901316914584","url":null,"abstract":"Calculations of the needs of healthcare, hearing healthcare included, are usually based on clinical data rather than on valid prevalence figures. According to our recent population study, the number of citizens needing hearing aids in Finland will be twice the figure usually presented, 280 000 for the country as a whole (population 5.1 million). The penetration of hearing aids was only 41%. Taking this and the ageing of the population into account, the economic challenges of hearing healthcare will be alarming in the new millennium.","PeriodicalId":76516,"journal":{"name":"Scandinavian audiology","volume":"30 1","pages":"203 - 204"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/010503901316914584","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59014279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Markou, P. Lalaki, N. Barbetakis, M. Tsalighopoulos, I. Daniilidis
{"title":"The efficacy of medication on tinnitus due to acute acoustic trauma","authors":"K. Markou, P. Lalaki, N. Barbetakis, M. Tsalighopoulos, I. Daniilidis","doi":"10.1080/010503901300007461","DOIUrl":"https://doi.org/10.1080/010503901300007461","url":null,"abstract":"Seventy-two young males suffering from acute acoustic trauma with tinnitus due to gunshots were included prospectively in the study. Forty of the subjects had the left ear affected, four the right ear and the remaining 28 sustained bilateral acoustic traumas. The mean time of admission after onset of symptoms was 28 days (5-88 days). The subjects were randomly categorized into three groups: group A received trimetazidine, prednisolone and complex B vitamins; group B were treated only with trimetazidine; and group C received prednisolone and complex B vitamins. At 3-month follow up, tinnitus had been completely eradicated in only eight subjects and had subsided in 17. No statistically significant difference was found between the three groups concerning improvement of tinnitus. However, it was found that early admission predisposed towards better prognosis. The degree of hearing improvement after medication did not seem to correlate with the relief of tinnitus.","PeriodicalId":76516,"journal":{"name":"Scandinavian audiology","volume":"37 1","pages":"180 - 184"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/010503901300007461","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59014447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Low birth weight as a risk factor of hearing loss","authors":"A. Pruszewicz, Izabela Pospiech","doi":"10.1080/010503901300007506","DOIUrl":"https://doi.org/10.1080/010503901300007506","url":null,"abstract":"The purpose of this study was the audiological evaluation of low birth weight children as well as to investigate any possible relation between very low birth weight and the associated risk factors and the subsequent hearing loss. A group of 110 children was examined audiologically. The prenatal, perinatal and postnatal risk factors were related to the audiological diagnosis. Depending on the patient's age, audiological examination consisted of auditory brainstem responses, pure tone audiometry and impedance audiometry. The presence of more than two risk factors in the perinatal and postnatal categories was connected with profound hearing loss in later life. No such relation was found with the cumulation of the prenatal risk factors. In our material the greatest risk of the acquired profound hearing loss and deafness occurring in low birth weight children was connected with the general physical status of the neonates and the treatment programme in the neonatal intensive care unit.","PeriodicalId":76516,"journal":{"name":"Scandinavian audiology","volume":"87 1","pages":"194 - 196"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/010503901300007506","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59014562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Małorzata Mueller-Malesińska, H. Skarżyńśki, M. Ołtarzewski, Janusz Szymborski, J. Ratyńska
{"title":"Project of the countrywide data collecting system for neonatal hearing screening programme in Poland","authors":"Małorzata Mueller-Malesińska, H. Skarżyńśki, M. Ołtarzewski, Janusz Szymborski, J. Ratyńska","doi":"10.1080/010503901300007515","DOIUrl":"https://doi.org/10.1080/010503901300007515","url":null,"abstract":"Neonatal hearing screening is becoming a standard of care in increasing number of hospitals and outpatient departments in Poland. A project of central data collecting system applicable to a neonatal hearing screening programme has been elaborated as a preparation to introducing a countrywide screening programme. The data collecting system will be based on the currently existing central system for the registration of neonatal screening tests for metabolic diseases. Data on risk factors for hearing loss and hearing screening test results will be collected. A central data collecting system for a neonatal hearing screening programme will increase the efficiency of the screening programme and facilitate epidemiological studies.","PeriodicalId":76516,"journal":{"name":"Scandinavian audiology","volume":"30 1","pages":"197 - 198"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/010503901300007515","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59014572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Age-related tonotopic map plasticity in the central auditory pathways","authors":"R. Harrison","doi":"10.1080/010503901750166529","DOIUrl":"https://doi.org/10.1080/010503901750166529","url":null,"abstract":"Inner hair cell lesions to the basal turn of the cochlea effectively result in a partial deafferentation of the auditory system. At the level of the midbrain (central nucleus of inferior colliculus) cochleotopic maps, based on single unit response characteristic frequency, are changed after such deafferentation. When a cochlear lesion is induced in a neonatal animal (chinchilla), the reorganization of the frequency map is more extensive than that resulting from similar deafferentation in the adult subject. Neonatal cochlear lesions result in an over-representation of sound frequencies corresponding to the border of the cochlear lesion, while similar lesions in the adult do not. The results suggest that significant plasticity exists in the auditory midbrain during early post natal development (even in a precocious species, such as chinchilla); however, this plasticity is largely lost in the mature animal. A conceptual model for the frequency map re-wiring is presented.","PeriodicalId":76516,"journal":{"name":"Scandinavian audiology","volume":"30 1","pages":"14 - 8"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/010503901750166529","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59014674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Harrison, J. Panesar, H. El-Hakim, M. Abdolell, R. J. Mount, B. Papsin
{"title":"The effects of age of cochlear implantation on speech perception outcomes in prelingually deaf children","authors":"R. Harrison, J. Panesar, H. El-Hakim, M. Abdolell, R. J. Mount, B. Papsin","doi":"10.1080/010503901750166727","DOIUrl":"https://doi.org/10.1080/010503901750166727","url":null,"abstract":"We have made a retrospective analysis on 70 prelingually deaf children (78% congenital; age range 2-15 years) followed for up to 5 years post-implant during which both closed set speech perception tests (TAC, WIPI) and open set tasks (PBK, GASP) were administered. We used a binary partitioning algorithm to optimally divide our dataset on the basis of age at implantation This technique achieves an optimal split when the heterogeneity of the data is most reduced (maximal drop in deviance). For the closed set speech perception tests (TAC and WIPI) partitioning best divided-out data at age 4.4 years. For the open set tests optimal division was at a higher age of implantation (GASP word, 5.6 years; PBK word, 8.4 years). Using these partitioning values, we have found statistically significant differences between rate of improvement of scores in the younger implanted children compared with those implanted later.","PeriodicalId":76516,"journal":{"name":"Scandinavian audiology","volume":"30 1","pages":"73 - 78"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/010503901750166727","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59014988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hearing impaired children in developing countries","authors":"T. Jauhiainen","doi":"10.1080/010503901750166763","DOIUrl":"https://doi.org/10.1080/010503901750166763","url":null,"abstract":"8TThe majority of hearing impaired children live in the developing countries. Limited resources are available for screening, prevention, diagnosis and intervention. These problems were the topic for discussion in a special session in the Congress.","PeriodicalId":76516,"journal":{"name":"Scandinavian audiology","volume":"30 1","pages":"83 - 84"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/010503901750166763","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59015049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}