Congenital and early-onset bilateral hearing impairment in children: the delay in detection

1997 ◽  
Vol 111 (11) ◽  
pp. 1018-1021 ◽  
Author(s):  
Eero Vartiainen ◽  
Seppo Karjalainen

AbstractA retrospective review of 168 consecutive children with congenital or early-onset bilateral hearing impairment (>25 dB, 0.5–4 kHz, in the better hearing ear) was conducted. Only 39 per cent of the hearingimpaired children were diagnosed within the first two years of life. The age at diagnosis was related to the severity of hearing loss with profound (>95 dB) hearing losses being detected earlier than the other degrees. However, 37 per cent of children with severe to profound (>70 dB) hearing loss were still not diagnosed until after two years of age. Children with severe to profound hearing loss and with known risk factors were diagnosed earlier than children with the same hearing status but with no known risk factors. It was concluded that the behavioural hearing screening tests used in our well-baby clinics are insufficient and, therefore, more reliable methods, preferably evoked otoacoustic emissions, should be used for universal hearing screening of infants and young children in spite of the great cost.

2021 ◽  
Vol 29 (2) ◽  
pp. 189-195
Author(s):  
Vybhavi MK ◽  
Srinivas V

Introduction  The present study was devised to estimate the prevalence of neonatal hearing loss and document the importance of using DPOAE as a screening tool for identifying hearing loss in newborns. Materials and Methods This hospital based descriptive study was conducted from August 2018 to August 2019. A total of 928 newborn babies were included in the study. These newborn babies were subjected to hearing screening by distortion product otoacoustic emissions (DPOAE) at 24-72 hrs after birth. For pass cases, no further testing was done. For refer cases, repeat testing with DPOAE was done within 15-30 days. Newborns with refer result on repeat DPOAE testing were subjected to Brainstem evoked response audiometry (BERA) within 3 months to confirm hearing loss. Results Nine hundred and twenty eight newborn babies were screened by DPOAE. 851 newborns passed the first DPOAE hearing screening and 77 newborns gave refer result. 21 newborns were lost to follow-up. 56 newborns underwent repeat DPOAE testing and 5 newborns were referred for BERA. Amongst the 5 newborns who underwent BERA testing, one newborn was diagnosed with bilateral profound hearing loss. Hence, the prevalence of hearing loss of 1.08 per thousand newborn babies was estimated in this study. Conclusion Hearing screening of newborns using DPOAE followed by BERA in refer cases to confirm hearing loss is useful for early detection followed by timely intervention and rehabilitation.


2021 ◽  
Vol 11 (1) ◽  
pp. 90-95
Author(s):  
Tatjana Vladimirova ◽  
Mikhail Postnikov ◽  
Alexandr Kurenkov ◽  
Anastasia Martynova

The study evaluated the effectiveness of screening tests by identifying hearing loss in 127 adults of the older age groups (aged 60–87). We performed a quantitative assessment of the HHIE-S questionnaire (accuracy, sensitivity, specificity) comparing to the puretone threshold audiometry (the gold standard for detecting hearing loss). The analysis of hearing impairment prevalence in the target population relied on both methods. We have observed a high rate of hearing loss — 81% in the patients of the older age group, of which 30% had mild hearing loss, 38% — moderate hearing loss, 9% — severe hearing loss, the remaining 4% with profound hearing loss. We have evaluated the average accuracy (62.2%), sensitivity (64.0%), specificity (54.0%) as well as the positive predictive value (85.7%) of the HHIE-S questionnaire, whereas it was the negative predictive value only that revealed a low rate (26%). The study outcomes confirm the possibility of using HHIE-S questionnaire as a screening tool for hearing loss in the older age group. HHIE-S can prove particularly useful for primary care physicians as well as for physical examination due to its reliable accuracy and ease of use. The probability of a false positive outcome and an overestimated hearing impairment in the older age group is relatively low. However, pure-tone threshold audiometry is required in patients with detected hearing loss.


Author(s):  
Shashidhar S. Suligavi ◽  
Prakhar Upadhyay ◽  
Prasen Reddy ◽  
S. S. Doddamani ◽  
M. N. Patil

<p class="abstract"><strong>Background:</strong> As hearing impairment is a hidden disability, it is usually detected after 2-3 years by which time there will be irreversible stunting of the skills and hence rehabilitation procedures like hearing aids, speech therapy are unable to ensure complete development of speech. Therefore hearing impairment should be diagnosed as early as           6 months to ensure timely therapy. The objective of the study is to identify the proportion of incidence of hearing impairment in neonates using transient evoked otoacoustic emissions (TEOAE) as a screening tool.</p><p class="abstract"><strong>Methods:</strong> Prospective study on 800 newborns in a tertiary hospital using TEOAE. Brain stem evoked response audiometry (BERA) was used to confirm hearing loss in neonates who failed TEOAE.  </p><p class="abstract"><strong>Results:</strong> Thirteen out of 800 newborns failed TEOAE test on first screening. Two failed on 2<sup>nd </sup>TEOAE test done after 3-4 weeks. Hearing loss was later confirmed in them with BERA test.</p><strong>Conclusions:</strong> Proportion of hearing loss in our study was 0.25%. Hearing screening should be done as early as possible so that deaf children are rehabilitated early.


Author(s):  
Gangadhara K. S. ◽  
Amrutha V. Bhat ◽  
Nagaraj M.

<p><strong>Background: </strong>Hearing screening results of babies born to mothers with and without gestational diabetes mellitus done within 24-48 hours of delivery using otoacoustic emissions was compared. Babies who failed the screening were recalled for further testing.<strong></strong></p><p><strong>Methods: </strong>A prospective institutional based study was conducted between December 2018 and May 2020. All the babies were screened for hearing impairment using handheld OAE apparatus within 24-48 hours of delivery. History of gestational diabetes mellitus in the mother was enquired. Any baby with a “refer” result in the OAE study was recalled for a repeat OAE testing after a month. This was repeated two more times if the baby failed the test every time. In case of failing the test for the third time, the baby was sent for brainstem evoked response audiometry for confirmation of hearing loss.<strong></strong></p><p><strong>Results: </strong>Screening was done for 14226 babies. Among them, 44 babies were born to mothers with gestational diabetes mellitus. The hearing screening results did not show a significant association between gestational diabetes mellitus and hearing impairment in the baby.<strong></strong></p><p><strong>Conclusions: </strong>Gestational diabetes is considered as one of the risk factors for deafness in the baby. This study could not establish such a relationship.<strong></strong></p>


2010 ◽  
Vol 67 (5) ◽  
pp. 379-385
Author(s):  
Snezana Babac ◽  
Mirjana Petrovic-Lazic ◽  
Milica Tatovic ◽  
Vesna Stojanovic-Kamberovic ◽  
Zoran Ivankovic

Background/Aim. Prevention of the consequences of hearing loss can be accomplished by early hearing screening of the cochlear function in newborus, but also with continuous hearing screening in the early childhood. The aim of this study was to investigate the reliability and feasibility of otoacoustic emissions (OAE) in hearing screening in children, evaluate the frequency and type of hearing loss and determine etiological factors of these losses. Methods. In the study, 133 children, aged 2 to 7.5 years, were tested on both ears with transient evoked otoacoustic emissions (TEOAE) and distortionproduct otoacoustic emissions (DPOAE). Before screening tests all children had undergone otoscopic examination. If children had not passed either or both hearing screening tests and/or abnormal otoscopic findings in at least one ear, audiological evaluation was scheduled to confirm or exclude hearing loss. Results. Eighty-five percent of children passed the hearing and otoscopic screening bilaterally. For additional audiologic tests 15% of children were referred. Agreement between otoscopic examination and screening tests was very good (agreement for TEOAE 95%, for DPOAE 93%). The results showed that normal tympanograms were very likely to be associated with normal screening tests. Sensitivity of TEOAE test was 94.12%, specificity 78.95%, while DPOAE sensitivity was 87.50% and specificity 75%. Hearing loss was found in 6.76% of the cases, conductive in 6.01% and sensorineural in 0.75%. Conductive hearing loss was a consequence of chronic otitis media with effusion in 25% of the cases, and a consequence of adhesive process in the middle ear in 8.33% of cases. Sensorineural hearing loss was a consequence of using ototoxic medications. Conclusion. TEOAE and/or DPOAE tests are reliable, noninvasive, and feasible methods for hearing screening in childhood.


2018 ◽  
Vol 5 (6) ◽  
pp. 2114
Author(s):  
Kamal K. Yenamandra ◽  
Pankaj K. Sahu ◽  
Anil Kumar ◽  
N. Rai ◽  
Pankaj K. Thakur

Background: Significant hearing loss is one of the most common major abnormalities present at birth. Screening for hearing loss in new-born is based on two concepts. First, a critical period exists for optimal language skills to develop, and Second, earlier intervention produces better outcomes.Methods: A two-stage screening protocol, in which new-born are screened first with two staged Transient Evoked Oto-acoustic Emissions TEOAE, using handheld TEOAE device, followed by confirmation with Auditory Brainstem Response (ABR). The objective was to study the incidence of hearing impairment in “healthy” and “high risk‟ newborns. A prospective observational study of hearing impairment screening was conducted on 4400 newborns, the study was done as a multi-centre study in 3 different hospitals during January 10 - December 14.Results: 4400 new born, born during the study period were screened, which included 4162(94.7%) healthy neonates and remaining 238(5.3%) high risk neonates. 24 newborn among the cohort of 4400, had hearing impairment confirmed by ABR. The overall incidence of hearing impairment is 5.45/ 1000 screened with 95 % confidence interval between 4.28-11.6. Incidence of hearing impairment in the "no risk‟ group was 2.4/1000 with 95 % confidence interval between 2.01- 4.66. Whereas incidence of 58.8/1000 with 95 % confidence interval is between 1.96-10.32 was seen in "at risk‟ group. Also, this study shows Universal hearing screening of newborns with a two staged screening protocol using TEOAE followed by confirmation with ABR is not only cost effective for detection of hearing loss but also aids in early intervention.Conclusions: The incidence of hearing impairment in our study (5.45 per 1000) is much higher than results shown in previous studies and national average of 4/1000.


2018 ◽  
Vol 72 (1) ◽  
pp. 1-4
Author(s):  
Monika Zych ◽  
Grażyna Greczka ◽  
Piotr Dąbrowski ◽  
Maciej Wróbel ◽  
Joanna Szyfter-Harris ◽  
...  

The Polish Universal Neonatal Hearing Screening Program (PUNHSP) has been carried out in Poland for 14 years. The main aim of this Program is to organize hearing screening tests and to gather the information about risk factors of hearing loss in almost all newborns in Poland. It consists of 496 centers at 3 referral levels. A total of 5 458 114 children had been registered in the Central Database (CDB) of PUNHSP by the 22nd of August 2017. Bilateral sensorineural hearing loss was the most frequently appearing hearing impairment in children. It was diagnosed in 260 cases in 2016. This report presents the most important results and conclusions concerning the running of the PUNHSP in 2016.


2018 ◽  
Vol 5 (4) ◽  
pp. 1342
Author(s):  
Varsha S. Nair ◽  
Prarthana Das ◽  
Palanisamy Soundararajan

Background: Present study was conducted to assess the prevalence of hearing impairment using measurements of Otoacoustic Emission (OAE) in newborns admitted to NICU and to determine the risk factors predictive of hearing impairment in these newborns.Methods: The study was conducted from January 2016 to June 2017 in the NICU under the Department of Pediatrics. All neonates admitted for more than 48 hours in the NICU were included. Neonates who died during the study period were excluded. All candidates underwent hearing loss in a sound treated room in the department using Distortion Product Otoacoustic Emissions (DPOAE) test at the time of discharge.  Babies who failed this initial screening underwent another OAE test within 1 month after discharge, and those who failed the test again were referred to an Otologist for comprehensive audiological assessment at 3 months.Results: Of the 200 neonates included in the study, 101cases (50.5%) failed the initial screening. 1 case (0.5%) failed the second OAE screening and moderate hearing loss was diagnosed in this child using BERA. Risk factors included mechanical ventilation (p=0.01), prematurity (p=0.01), low Apgar scores (p<0.01) and multiple gestation (p<0.05). Other conditions predominating in neonates who failed hearing screening included TTN, MAS, LBW and neonatal jaundice.Conclusions: Newborn infants admitted to the NICU are at a higher risk for hearing impairment due to exposure to multiple risk factors. The two staged screening protocols with DPOAE is a useful protocol for detecting hearing loss in newborns and can be implemented as a national program.


2005 ◽  
Vol 119 (9) ◽  
pp. 678-683 ◽  
Author(s):  
M D Mohd Khairi ◽  
S Din ◽  
H Shahid ◽  
A R Normastura

The objective of this prospective study was to report on the prevalence of hearing impairment in the neonatal unit population. From 15 February 2000 to 15 March 2000 and from 15 February 2001 to 15 May 2001, 401 neonates were screened using transient evoked otoacoustic emissions (TEOAE) followed by second-stage screening of those infants who failed the initial test. Eight (2 per cent) infants failed one ear and 23 (5.74 per cent) infants failed both ears, adding up to 7.74 per cent planned for second-stage screening. Five out of 22 infants who came for the follow up failed the screening, resulting in a prevalence of hearing impairment of 1 per cent (95 per cent confidence interval [95% CI]: 0.0–2.0). Craniofacial malformations, very low birth weight, ototoxic medication, stigmata/syndromes associated with hearing loss and hyperbilirubinaemia at the level of exchange tranfusion were identified to be independent significant risk factors for hearing impairment, while poor Apgar scores and mechanical ventilation of more than five days were not. In conclusion, hearing screening in high-risk neonates revealed a total of 1 per cent with hearing loss. The changes in the risk profile indicate improved perinatal handling in a neonatal population at risk for hearing disorders.


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