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Y Y Yip - One of the best experts on this subject based on the ideXlab platform.

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Betty R Vohr - One of the best experts on this subject based on the ideXlab platform.

  • brain stem auditory Evoked Response in relation to neonatal glucose metabolism
    Neonatology, 1997
    Co-Authors: Richard M Cowett, Gia M Howard, Joanne Johnson, Betty R Vohr
    Abstract:

    Imprecise control of glucose homeostasis is a hallmark of neonatal glucose metabolism. A relatively wide range of glucose concentrations is considered ‘euglycemic’ (2.22–6.94 mmol/l, 40–125 mg/dl) in the neonatal period. We investigated the effects of a wide range of glucose concentrations on brain stem conduction time (BCT) I-V interpeak latency or prolonged wave V latency. Neonates were assessed by brain stem auditory-Evoked Response followed immediately by heelstick sampling to determine the blood glucose concentration. Twenty-seven appropriate for gestational age (AGA) term neonates (birth weight 3,245 ± 766 g, mean ± SD; gestational age 39 ± 2 weeks) were studied 3.1 ± 3.7 days after birth. Twenty-three AGA preterm neonates (birth weight 2,175 ± 477 g; gestational age 35 ± 1 weeks) were studied 6.0 ± 7.2 days after birth. Brain stem conduction time wave I-V interpeak latency and wave V latency were determined in two trials using a Grason-Stadler ABR screener at a 60-decibel stimulation level in the right ear. Neonates were studied between 33 and 40 weeks gestational age. Although the blood glucose concentration ranged from 1.38 to 6.83 mmol/l (25–123 mg/dl), there was no correlation between either brain stem conduction time wave I-V interpeak latency or wave V latency and blood glucose concentration. We conclude that alterations in glucose concentration within the generally accepted neonatal euglycemic range do not effect the functional status of the brain stem auditory pathway. We suggest that the data can be interpreted to affirm that tighter clinical control of glucose homeostasis is probably not required in the neonatal period.

B A Skurr - One of the best experts on this subject based on the ideXlab platform.

Dhananjay Kumar - One of the best experts on this subject based on the ideXlab platform.

  • A study of brainstem Evoked Response audiometry in children with severe hearing loss
    International Journal of Otorhinolaryngology and Head and Neck Surgery, 2019
    Co-Authors: Rakhi Kumari, Rajiv Kumar Jain, Dhananjay Kumar
    Abstract:

    Background: Brainstem Evoked Response audiometry (BERA) is a non-invasive diagnostic tool which can be used to assess the early hearing loss. The objectives of the study were to find out the risk factors for severe hearing loss in children and to evaluate the role of BERA in early diagnosis of severe hearing loss in children. Methods: The present hospital based cross sectional study was conducted on 105 children suffering from severe hearing loss. Risk factors of hearing loss was assessed in these children and brainstem Evoked Response audiometry was performed. Results: Out of 105 children studied risk factors for hearing loss were present in 69 cases (65.71%) in which several cases had multiple risk factors. History of prolonged stay at NICU was present in 23 cases (21.9%). 11 (10.5%) cases had suffered from meningitis while history of cerebral malaria was present in 2 cases (1.9%). History of cerebral palsy was present in 5.7% cases. The family history of hearing loss was present in 15 patients (14.3%). Bilateral severe hearing loss was present in 76 cases (72.4%) while in 13 cases (12.4%) there was bilateral severe to profound hearing loss assessed using BERA test. Conclusions: Early detection and timely intervention can not only help prevent this silent handicap of deafness but also contribute to social and economic productivity of a community.

  • auditory assessment of children with severe hearing loss using behavioural observation audiometry and brainstem Evoked Response audiometry
    International Journal of Research in Medical Sciences, 2016
    Co-Authors: Rakhi Kumari, Rajiv Kumar Jain, Priyanko Chakraborty, Dhananjay Kumar
    Abstract:

    Background: Early detection of hearing loss has been a long-standing priority in the field of audiology. Currently available auditory testing methods include both behavioural and non-behavioural or objective tests of hearing. This study was planned with an objective to assess hearing loss in children using behavioural observation audiometry and brain stem Evoked Response audiometry. Methods: A total of 105 cases suffering from severe to profound hearing loss were registered. After proper history and clinical examination patients were subjected to behavioural observation audiometry (BOA) and brainstem Evoked Response audiometry test (BERA). Results: Out of 105 cases in 62 cases (59.05%) the findings of both BOA and BERA tests were similar but in 43 cases the findings of both tests were not similar. In total 18 cases (17.14%) diagnosis of severe hearing loss could be made by BERA test only because of in 10 cases there was inconclusive BOA finding and in 8 cases there was no Response in BOA test. Conclusions: Behavioural observation audiometry can detect hearing loss but in developmentally retardrd children in whom Responses are difficult to elicited, this test is not so conclusive. BERA is the tool which can confirm the normal sensitivity of hearing in such persons whenever required and is very useful in early detection of hearing loss and planning rehabilitative procedures.

  • Auditory assessment of children with severe hearing loss using behavioural observation audiometry and brainstem Evoked Response audiometry
    Medip Academy, 2016
    Co-Authors: Rakhi Kumari, Rajiv Kumar Jain, Priyanko Chakraborty, Dhananjay Kumar
    Abstract:

    Background: Early detection of hearing loss has been a long-standing priority in the field of audiology. Currently available auditory testing methods include both behavioural and non-behavioural or objective tests of hearing. This study was planned with an objective to assess hearing loss in children using behavioural observation audiometry and brain stem Evoked Response audiometry. Methods: A total of 105 cases suffering from severe to profound hearing loss were registered. After proper history and clinical examination patients were subjected to behavioural observation audiometry (BOA) and brainstem Evoked Response audiometry test (BERA). Results: Out of 105 cases in 62 cases (59.05%) the findings of both BOA and BERA tests were similar but in 43 cases the findings of both tests were not similar. In total 18 cases (17.14%) diagnosis of severe hearing loss could be made by BERA test only because of in 10 cases there was inconclusive BOA finding and in 8 cases there was no Response in BOA test. Conclusions: Behavioural observation audiometry can detect hearing loss but in developmentally retardrd children in whom Responses are difficult to elicited, this test is not so conclusive. BERA is the tool which can confirm the normal sensitivity of hearing in such persons whenever required and is very useful in early detection of hearing loss and planning rehabilitative procedures. [Int J Res Med Sci 2016; 4(7.000): 2870-2873