ABR recordings in newborns using an ear canal electrode
The objective of this study was to improve the sensitivity of ABR recordings in newborns via a procedure that utilizes the ear canal as a recording site. Conventional recordings were compared to ear canal recordings of the ABR in 45 normally-hearing newborns who passed their newborn hearing screenin...
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| Veröffentlicht in: | International journal of audiology 2008-08, Vol.47 (8), p.499-504 |
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| container_title | International journal of audiology |
| container_volume | 47 |
| creator | Gaddam, Anupa Ferraro, John A. |
| description | The objective of this study was to improve the sensitivity of ABR recordings in newborns via a procedure that utilizes the ear canal as a recording site. Conventional recordings were compared to ear canal recordings of the ABR in 45 normally-hearing newborns who passed their newborn hearing screening. Responses were obtained at stimulus levels of 80, 60, 40, and 20 dBnHL using forehead (+) to ear canal (−), versus forehead (+) to mastoid (−) electrode configurations. ABR parameters evaluated included measurement of component amplitudes of wave I and V, absolute latencies of I and V, the I-V interwave interval, and amplitude ratio. At stimulus levels of 80, 60, and 40 dBnHL, wave I amplitude was significantly larger using the ear canal configuration. This investigation shows that the amplitude of wave I is significantly larger and easier to identify when the ear canal is used as one of the recording sites in comparison to more conventional scalp (mastoid) recordings. |
| doi_str_mv | 10.1080/14992020802116268 |
| format | Article |
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Conventional recordings were compared to ear canal recordings of the ABR in 45 normally-hearing newborns who passed their newborn hearing screening. Responses were obtained at stimulus levels of 80, 60, 40, and 20 dBnHL using forehead (+) to ear canal (−), versus forehead (+) to mastoid (−) electrode configurations. ABR parameters evaluated included measurement of component amplitudes of wave I and V, absolute latencies of I and V, the I-V interwave interval, and amplitude ratio. At stimulus levels of 80, 60, and 40 dBnHL, wave I amplitude was significantly larger using the ear canal configuration. 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Conventional recordings were compared to ear canal recordings of the ABR in 45 normally-hearing newborns who passed their newborn hearing screening. Responses were obtained at stimulus levels of 80, 60, 40, and 20 dBnHL using forehead (+) to ear canal (−), versus forehead (+) to mastoid (−) electrode configurations. ABR parameters evaluated included measurement of component amplitudes of wave I and V, absolute latencies of I and V, the I-V interwave interval, and amplitude ratio. At stimulus levels of 80, 60, and 40 dBnHL, wave I amplitude was significantly larger using the ear canal configuration. This investigation shows that the amplitude of wave I is significantly larger and easier to identify when the ear canal is used as one of the recording sites in comparison to more conventional scalp (mastoid) recordings.</description><subject>Analysis of Variance</subject><subject>Audiometry, Evoked Response - instrumentation</subject><subject>Audiometry, Evoked Response - methods</subject><subject>Auditory brainstem response</subject><subject>Auditory Threshold</subject><subject>Ear Canal - physiology</subject><subject>Ear canal electrode</subject><subject>Electrodes</subject><subject>Equipment Design</subject><subject>Evoked Potentials, Auditory, Brain Stem</subject><subject>Humans</subject><subject>Infant, Newborn</subject><subject>Infants</subject><subject>Newborns</subject><subject>Otoacoustic Emissions, Spontaneous</subject><subject>Reaction Time</subject><issn>1499-2027</issn><issn>1708-8186</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkEtLAzEUhYMotj5-gBuZlbvRJM1r0E0tvkAQRNchk7nRKdOkJjNI_72RFkSEurqXe79zOByETgg-J1jhC8KqimKaV0qIoELtoDGRWJWKKLGb9_wvMyBH6CClOcZEMq720Si_K8UpGyM5vX4uItgQm9a_paL1hYfPOkSfiiHlU2F8ASYW1njTFdCB7WNo4AjtOdMlON7MQ_R6e_Myuy8fn-4eZtPH0rIJ78uaS1w71ShjqJGKOMsAS04Y49g2NcOcVpUjEwYVztGcdLIWkgsFrJI1IZNDdLb2XcbwMUDq9aJNFrrOeAhD0ooLKQTD_4KiYpQTTDNI1qCNIaUITi9juzBxpQnW37XqP7VmzenGfKgX0PwoNj1m4GoNtN6FuDCfIXaN7s2qC9FF422b9GSb_-Uv-TuYrn-3JoKehyHm5tOWdF-RT5U_</recordid><startdate>200808</startdate><enddate>200808</enddate><creator>Gaddam, Anupa</creator><creator>Ferraro, John A.</creator><general>Informa UK Ltd</general><general>Taylor & Francis</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7T9</scope></search><sort><creationdate>200808</creationdate><title>ABR recordings in newborns using an ear canal electrode</title><author>Gaddam, Anupa ; Ferraro, John A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c435t-b570bf8d8aa2a781fc4e07514450cdb405299f134e90458f7f7b67568e497b113</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Analysis of Variance</topic><topic>Audiometry, Evoked Response - instrumentation</topic><topic>Audiometry, Evoked Response - methods</topic><topic>Auditory brainstem response</topic><topic>Auditory Threshold</topic><topic>Ear Canal - physiology</topic><topic>Ear canal electrode</topic><topic>Electrodes</topic><topic>Equipment Design</topic><topic>Evoked Potentials, Auditory, Brain Stem</topic><topic>Humans</topic><topic>Infant, Newborn</topic><topic>Infants</topic><topic>Newborns</topic><topic>Otoacoustic Emissions, Spontaneous</topic><topic>Reaction Time</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gaddam, Anupa</creatorcontrib><creatorcontrib>Ferraro, John A.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Linguistics and Language Behavior Abstracts (LLBA)</collection><jtitle>International journal of audiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gaddam, Anupa</au><au>Ferraro, John A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>ABR recordings in newborns using an ear canal electrode</atitle><jtitle>International journal of audiology</jtitle><addtitle>Int J Audiol</addtitle><date>2008-08</date><risdate>2008</risdate><volume>47</volume><issue>8</issue><spage>499</spage><epage>504</epage><pages>499-504</pages><issn>1499-2027</issn><eissn>1708-8186</eissn><abstract>The objective of this study was to improve the sensitivity of ABR recordings in newborns via a procedure that utilizes the ear canal as a recording site. Conventional recordings were compared to ear canal recordings of the ABR in 45 normally-hearing newborns who passed their newborn hearing screening. Responses were obtained at stimulus levels of 80, 60, 40, and 20 dBnHL using forehead (+) to ear canal (−), versus forehead (+) to mastoid (−) electrode configurations. ABR parameters evaluated included measurement of component amplitudes of wave I and V, absolute latencies of I and V, the I-V interwave interval, and amplitude ratio. At stimulus levels of 80, 60, and 40 dBnHL, wave I amplitude was significantly larger using the ear canal configuration. This investigation shows that the amplitude of wave I is significantly larger and easier to identify when the ear canal is used as one of the recording sites in comparison to more conventional scalp (mastoid) recordings.</abstract><cop>England</cop><pub>Informa UK Ltd</pub><pmid>18698524</pmid><doi>10.1080/14992020802116268</doi><tpages>6</tpages></addata></record> |
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| identifier | ISSN: 1499-2027 |
| ispartof | International journal of audiology, 2008-08, Vol.47 (8), p.499-504 |
| issn | 1499-2027 1708-8186 |
| language | eng |
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| source | MEDLINE; Taylor & Francis Medical Library - CRKN; Taylor & Francis Journals Complete |
| subjects | Analysis of Variance Audiometry, Evoked Response - instrumentation Audiometry, Evoked Response - methods Auditory brainstem response Auditory Threshold Ear Canal - physiology Ear canal electrode Electrodes Equipment Design Evoked Potentials, Auditory, Brain Stem Humans Infant, Newborn Infants Newborns Otoacoustic Emissions, Spontaneous Reaction Time |
| title | ABR recordings in newborns using an ear canal electrode |
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