The Use Of The Automated Auditory Brainstem Response And Otoacoustic Emissions Tests For Newborn Hearing Screening
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The Use Of The Automated Auditory Brainstem Response And Otoacoustic Emissions Tests For Newborn Hearing Screening
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Author :
language : en
Publisher:
Release Date : 2007
The Use Of The Automated Auditory Brainstem Response And Otoacoustic Emissions Tests For Newborn Hearing Screening written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Auditory evoked response categories.
The Use Of The Automated Auditory Brainstem Response And Otoacoustic Emissions Tests For Newborn Hearing Screening
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Author :
language : en
Publisher:
Release Date : 2007
The Use Of The Automated Auditory Brainstem Response And Otoacoustic Emissions Tests For Newborn Hearing Screening written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Audiometry categories.
We include information on the provisions of vaccines and their costs, on modes of delivery, and on the number of adverse events. [...] The incidence of these diseases will therefore reflect the efficacy of the vaccines and the degree of coverage that is achieved by the national immunization strategies. [...] The number of vaccines that are administered are based on the childhood immunization schedules, the degree of coverage in the childhood population, and the unit prices of the vaccines that are delivered. [...] Institute of Health Economics, Economics of Childhood Immunizations in Canada, May 2007 27 sEction thrEE pErformancE introduction In this section we address two issues - the cost-effectiveness of vaccies in preventing communicable diseases and the performance of the Canadian public health system in providing vaccine coverage for children. [...] The net benefits of the program depend on the total number of children vaccinated and the cost of the immunization program.
Automated Auditory Brainstem Response Vs Otoacoustic Emissions In Newborn Hearing Screening U2013 Prospective Pilot Screening Trial
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Author :
language : en
Publisher:
Release Date : 2017
Automated Auditory Brainstem Response Vs Otoacoustic Emissions In Newborn Hearing Screening U2013 Prospective Pilot Screening Trial written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
Objective - Early diagnosis and treatment of congenital and acquired hearing impairment in newborns is a key element for optimal speech development. The automated auditory brainstem response (AABR) method is considered to be superior to the otoacoustic emission (OAE) method, as it detects hearing deficit not only at the level of ear but also of neural origin. Recent recommendations suggest implementation of AABR to newborn hearing screening, to identify the group of newborns at higher risk of hearing impairment. Aim u2013 The aim of the study was to analyze the effectiveness of OAE and AABR used as screening tools for hearing impairment among infants. Material and methods u2013 The group of 350 infants (250 u2013 with risk factors of hearing deficit; 100 u2013 control group) was examined by means of both OAE and AABR before discharge from the hospital after birth. The risk factors of hearing deficit were recorded. Infants who failed the screening test and/or had risk factors were referred for further audiological evaluation.Results u2013 The results of OAE were positive in 4 newborns bilaterally and in 1 unilaterally. In 2 infants OAE was not performed due to anatomical defects or respiratory support. The results of AABR were positive in 7 newborns bilaterally and in 13 unilaterally. One newborn in whom both OAE and AABR were positive was finally diagnosed with bilateral sensorineural profound hearing deficit > 90 dB; the identified risk factor was congenital cytomegalovirus infection. Five newborns of the study group and one of the control group in whom OAE was negative and AABR was positive either unilaterally or bilaterally, finally have not been diagnosed with hearing deficit (false positive screening). Other infants in whom AABR was positive do not have the final diagnosis of hearing status yet. All newborns of the study group had at least one risk factor of hearing deficit u2013 the most frequent were treatment in the intensive care unit (90%), mechanical ventilation (83.3%), and ototoxic treatment (75.1%). One newborn with negative results of both OAE and AABR and with risk factors of hearing deficit (prematurity, very low birth weight, ototoxic treatment, treatment in NICU and mechanical ventilation) was diagnosed with moderate hearing deficit (30 dB and 50 dB) at the second level of screening program (false negative screening). AABR exam was assessed by the staff as more difficult and time consuming to perform (mean time of the exam 7.4 min; SD 7.19) when compared to OAE.Conclusions - The AABR method, recommended as gold standard for hearing screening in premature babies, is very useful in early diagnosis of hearing impairment. It allows for early identification of infants with hearing deficit as it examines the entire auditory pathway. However, it seems to be more difficult to perform when compared to OAE.
Infant Hearing Screening With The Combination Of Otoacoustic Emissions And Automated Auditory Brainstem Response Test Is It Worth It
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Author : Zoi ZACHOU
language : en
Publisher:
Release Date : 2017
Infant Hearing Screening With The Combination Of Otoacoustic Emissions And Automated Auditory Brainstem Response Test Is It Worth It written by Zoi ZACHOU and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
Infant hearing screening with the combination of otoacoustic emissions and automated auditory brainstem response test : Is it worth it?Introduction : The implementation of universal hearing screening could lead to the accurate and rapid diagnose of children with sensoneural hearing loss. The methods that are used most widely are otoacoustic emissions (OAEu2019s) and automated auditory brainstem response test (AABR) Methods and results : For a period of 1.5 year, 469 infants with or without risk factors had hearing screening with a protocol including medical history ,otoscopy ,tympanogram and both OAEs and AABR. According to our results the sensitivity of AABR was 97.54% and the specificity 87.5%. The OAEs had sensitivity 82.92% and specificity 100%.Conclusion : According to our results AABR are having higher sensitivity whereas OAEs have higher specificity .Consequently the combination of the two tests seem to be the most accurate for the earliest detection of sensoneural hearing loss.
Auditory Brainstem Responses To Air And Bone Conducted Chirp Stimuli In Newborns And Young Adults
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Author : Kensi Cobb
language : en
Publisher:
Release Date : 2015
Auditory Brainstem Responses To Air And Bone Conducted Chirp Stimuli In Newborns And Young Adults written by Kensi Cobb and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Over the past half a century, considerable effort has been dedicated to the development of universal newborn hearing screening (UNHS) programs across the United States. Newborn hearing screenings have progressed from subjective assessments performed only on at-risk neonates to highly sensitive objective methods of screening auditory sensitivity in nearly all newborns in the country. The Joint Committee on Infant Hearing (JCIH, 2007), National Institutes of Health (NIH, 1993) and the American Speech-Language-Hearing Association (ASHA, 2004) all support the use of either otoacoustic emission (OAE) or automated auditory brainstem response (ABR) for UNHS. Because OAE testing only assesses cochlear function, ABR testing remains the gold standard for evaluating the functioning of the peripheral and central auditory system (i.e., to the level of the brainstem). Historically, ABRs have been evoked using a broadband click stimulus or tone burst stimuli. The click stimulus has been advocated for both neuro-diagnostic and newborn hearing screening applications. Recently, a chirp stimulus was developed to maximize the temporal synchronization of the responses from the underlying neural components. Researchers have shown that this increased synchrony produces larger amplitude ABRs in both adults and infants, even at low intensity levels, potentially reduces test time, and is comparable to the "stacked" ABR. To date, however, few researchers have investigated the effects of manipulating multiple stimulus parameters in both adult and neonate participants. The purpose of this dissertation was to collect normative data based on a multitude of stimulus manipulations, using both air and bone-conducted CE-Chirp and octave band stimuli in newborns and young adults. Additionally, ABR responses to air and bone-conducted chirp stimuli were compared to traditional ABRs to click and tonal stimuli in newborns. Latency and amplitude of ABR waveform components, primarily wave V, were examined. In Experiment 1, it was shown that ABRs to CE-Chirp stimuli are signifcantly (p
Disorders Of Peripheral And Central Auditory Processing
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Author : Gastone G. Celesia
language : en
Publisher: Elsevier Health Sciences
Release Date : 2013-12-12
Disorders Of Peripheral And Central Auditory Processing written by Gastone G. Celesia and has been published by Elsevier Health Sciences this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-12 with Medical categories.
Universal Newborn Hearing Screening
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Author : Lynn G. Spivak
language : en
Publisher: Thieme
Release Date : 1998
Universal Newborn Hearing Screening written by Lynn G. Spivak and has been published by Thieme this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Hearing disorders in infants categories.
Following the NIH recommendations of 1993, most U.S. hospitals now carry out Universal Newborn Hearing Screening. This new book-the first complete guide to this expanding field-provides detailed information on staff training, data collection, quality control measures and other UNHS issues. Practical and up-to-date, the book is a must for all specialists concerned with the development and management of newborn screening programs. The only book to combine specific management tips with the first-hand experience of seasoned UNHS professionals, this book should be in the collection of all audiologists, physicians, nurses and hospital administrators.
Otoacoustic Emissions Principles Procedures And Protocols Second Edition
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Author : Sumitrajit Dhar
language : en
Publisher: Plural Publishing
Release Date : 2018-03-01
Otoacoustic Emissions Principles Procedures And Protocols Second Edition written by Sumitrajit Dhar and has been published by Plural Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-03-01 with Medical categories.
Otoacoustic Emissions: Principles, Procedures, and Protocols, Second Edition is a readable yet comprehensive source of information on otoacoustic emissions (OAEs). OAEs now play an important role in hearing screening and the clinical assessment of children and adults. The text begins with a succinct overview of OAEs and a historical description of their discovery and emergence as a clinical tool. Otoacoustic Emissions distills in 10 chapters the latest information on OAEs from basic research to clinical applications. The book is concise, but comprehensive, and covers the essentials of the subject from innovative and up-to-date perspectives. The second edition features updates across all chapters, including current research findings and changing perspectives on OAE taxonomy. Important information is highlighted with new and updated illustrations throughout the book. The material covered in the book is appropriate for intermediate and advanced students, and ideal for practicing audiologists. With a focus on practical information needed by the clinical audiologist and an eye to technological developments, authors Dhar and Hall provide an up-to-date, straightforward, and clinically focused source of information on OAEs.
Newborn Screening Systems
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Author : Carlie J. Driscoll
language : en
Publisher: Plural Publishing
Release Date : 2010-02-15
Newborn Screening Systems written by Carlie J. Driscoll and has been published by Plural Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-02-15 with Medical categories.
Newborn Hearing Screening
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Author : Mark Helfand
language : en
Publisher:
Release Date : 2001
Newborn Hearing Screening written by Mark Helfand and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
CONTEXT: Each year approximately 5000 infants are born in the United States with moderate to profound, bilateral sensorineural hearing loss (SNHL). Universal newborn hearing screening (UNHS) has been proposed as a means to speed diagnosis and treatment, and thereby improve language outcomes in these children. OBJECTIVE: To identify strengths, weaknesses, and gaps in the evidence supporting UNHS and to compare the additional benefits and harms of UNHS with those of selective screening of high-risk newborns. DATA SOURCES: A keyword search of MEDLINE, CINAHL, and PsycINFO databases for relevant papers published from 1994 to August 2001, using terms for hearing disorders, infant or newborn, screening, and relevant treatments. We contacted experts and reviewed reference lists to identify additional articles, including those published before 1994. STUDY SELECTION: We included controlled and observational studies of (1) the accuracy, yield, or harms of screening using otoacoustic emissions (OAEs), auditory brainstem response (ABR), or both in the general newborn population or (2) the effects of screening or of early identification and treatment on language outcomes. Nineteen articles, including 1 controlled trial, met these inclusion criteria. DATA EXTRACTION: Data on population, test performance, outcomes, and methodological quality were extracted using prespecified criteria developed by the US Preventive Services Task Force. We queried authors when information needed to assess study quality was missing. DATA SYNTHESIS: Good quality studies show from 2041 to 2794 low-risk, and 86 to 208 high-risk, newborns were screened to find 1 case of moderate to profound SNHL. The best estimate of positive predictive value is 6.7%. Six percent to 15% of infants who fail the screening tests are subsequently diagnosed with bilateral SNHL. In a trial of UNHS versus clinical screening at 8 months of age, UNHS increased the proportion of infants with moderate to severe hearing loss diagnosed by 10 months of age (57% vs 14%), but did not reduce the rate of diagnosis after 18 months of age. No good-quality controlled study has compared UNHS to selective screening of high-risk newborns. In fair- to poor-quality cohort studies, intervention before 6 months of age was associated with improved language and communication skills by 2 to 5 years of age. These studies had unclear criteria for selecting subjects, and none compared an inception cohort of low-risk newborns identified by screening to those identified in usual care, making it impossible to exclude selection bias as an explanation for the results. In a mathematical model based on the literature review, we estimated that extending screening to low-risk infants would detect 1 additional case before 10 months for every 1441 low-risk infants screened, and result in treatment before 10 months of 1 additional case for every 2401 low-risk infants screened. With UNHS, 254 newborns would be referred for audiological evaluation because of false-positive second-stage screening test results, versus 48 for selective screening. CONCLUSIONS: Modern screening tests for hearing impairment can improve identification of newborns with SNHL, but the efficacy of UNHS to improve long-term language outcomes remains uncertain.