Variance of Vestibular-Evoked Myogenic Potentials
Objectives/Hypothesis Vestibular‐evoked myogenic potential (VEMP) has been thought to originate from sacculus. The variance of this potential and the effectiveness of the adjustments of pInII amplitudes using average muscle tonus of ipsilateral sternocleidomastoid muscle were evaluated. In addition,...
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| Veröffentlicht in: | The Laryngoscope 2001-03, Vol.111 (3), p.522-527 |
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| creator | Ochi, Kentaro Ohashi, Toru Nishino, Hirohito |
| description | Objectives/Hypothesis Vestibular‐evoked myogenic potential (VEMP) has been thought to originate from sacculus. The variance of this potential and the effectiveness of the adjustments of pInII amplitudes using average muscle tonus of ipsilateral sternocleidomastoid muscle were evaluated. In addition, clinical application of VEMP was examined in patients with acoustic tumors (ATs) and vestibular neurolabyrinthitis (VNL).
Study Design Prospective evaluation of the VEMP in 18 normal volunteers and 6 patients.
Methods Variance and left–right difference of each parameter, including pI latency, nII latency, pInII amplitude, and threshold, was analyzed. Input– output function of pInII amplitude was evaluated. Average muscle tonus was calculated in 20 ears and applied for adjustment of pInII amplitude. Sensitivity of each parameter of VEMP was examined in 3 patients with ATs and 3 patients with VNL.
Results VEMP was present in all 36 ears of 18 control subjects. Thresholds of VEMP for normal subjects were 80 to 95 dB normal hearing level (nHL). The muscle tonus affected pInII amplitude significantly; however, no statistically significant improvement was observed in test–retest investigation after adjustment using muscle tonus. The threshold of the affected side was elevated compared with the non‐affected side in all patients with ATs, whereas 2 of 3 patients showed normal pInII‐ratio. One patient with VNL presented normal VEMP, whereas 2 patients presented no VEMP to the highest stimulus intensity.
Conclusions Interaural difference of thresholds might be the most useful parameters. Adjustment using average muscle tonus is not necessary when the subject is able to get sufficient muscle tonus. |
| doi_str_mv | 10.1097/00005537-200103000-00025 |
| format | Article |
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Study Design Prospective evaluation of the VEMP in 18 normal volunteers and 6 patients.
Methods Variance and left–right difference of each parameter, including pI latency, nII latency, pInII amplitude, and threshold, was analyzed. Input– output function of pInII amplitude was evaluated. Average muscle tonus was calculated in 20 ears and applied for adjustment of pInII amplitude. Sensitivity of each parameter of VEMP was examined in 3 patients with ATs and 3 patients with VNL.
Results VEMP was present in all 36 ears of 18 control subjects. Thresholds of VEMP for normal subjects were 80 to 95 dB normal hearing level (nHL). The muscle tonus affected pInII amplitude significantly; however, no statistically significant improvement was observed in test–retest investigation after adjustment using muscle tonus. The threshold of the affected side was elevated compared with the non‐affected side in all patients with ATs, whereas 2 of 3 patients showed normal pInII‐ratio. One patient with VNL presented normal VEMP, whereas 2 patients presented no VEMP to the highest stimulus intensity.
Conclusions Interaural difference of thresholds might be the most useful parameters. Adjustment using average muscle tonus is not necessary when the subject is able to get sufficient muscle tonus.</description><identifier>ISSN: 0023-852X</identifier><identifier>EISSN: 1531-4995</identifier><identifier>DOI: 10.1097/00005537-200103000-00025</identifier><identifier>PMID: 11224786</identifier><identifier>CODEN: LARYA8</identifier><language>eng</language><publisher>Hoboken, NJ: John Wiley & Sons, Inc</publisher><subject>Acoustic Stimulation ; acoustic tumor ; Adult ; Afferent Pathways - physiopathology ; Aged ; Biological and medical sciences ; Ear, auditive nerve, cochleovestibular tract, facial nerve: diseases, semeiology ; Electrodiagnosis. Electric activity recording ; Electromyography ; Evoked Potentials, Motor - physiology ; Female ; Functional Laterality - physiology ; Humans ; inferior vestibular nerve ; Investigative techniques, diagnostic techniques (general aspects) ; Male ; Medical sciences ; Neck Muscles - innervation ; Nervous system ; Neuroma, Acoustic - diagnosis ; Neuroma, Acoustic - physiopathology ; Otorhinolaryngology. Stomatology ; Predictive Value of Tests ; Reference Values ; Saccule and Utricle - physiopathology ; sacculus ; Tumors ; Vestibular evoked myogenic potential ; Vestibular Nerve - physiopathology ; vestibular neurolabyrinthitis ; Vestibular Neuronitis - diagnosis ; Vestibular Neuronitis - physiopathology</subject><ispartof>The Laryngoscope, 2001-03, Vol.111 (3), p.522-527</ispartof><rights>Copyright © 2001 The Triological Society</rights><rights>2001 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4385-57f34ae13a93f62cf9c43fec0ac8b258f73ad3538bb4ab69c3d23ac7f17105f83</citedby><cites>FETCH-LOGICAL-c4385-57f34ae13a93f62cf9c43fec0ac8b258f73ad3538bb4ab69c3d23ac7f17105f83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1097%2F00005537-200103000-00025$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1097%2F00005537-200103000-00025$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27923,27924,45573,45574</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=897920$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11224786$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ochi, Kentaro</creatorcontrib><creatorcontrib>Ohashi, Toru</creatorcontrib><creatorcontrib>Nishino, Hirohito</creatorcontrib><title>Variance of Vestibular-Evoked Myogenic Potentials</title><title>The Laryngoscope</title><addtitle>The Laryngoscope</addtitle><description>Objectives/Hypothesis Vestibular‐evoked myogenic potential (VEMP) has been thought to originate from sacculus. The variance of this potential and the effectiveness of the adjustments of pInII amplitudes using average muscle tonus of ipsilateral sternocleidomastoid muscle were evaluated. In addition, clinical application of VEMP was examined in patients with acoustic tumors (ATs) and vestibular neurolabyrinthitis (VNL).
Study Design Prospective evaluation of the VEMP in 18 normal volunteers and 6 patients.
Methods Variance and left–right difference of each parameter, including pI latency, nII latency, pInII amplitude, and threshold, was analyzed. Input– output function of pInII amplitude was evaluated. Average muscle tonus was calculated in 20 ears and applied for adjustment of pInII amplitude. Sensitivity of each parameter of VEMP was examined in 3 patients with ATs and 3 patients with VNL.
Results VEMP was present in all 36 ears of 18 control subjects. Thresholds of VEMP for normal subjects were 80 to 95 dB normal hearing level (nHL). The muscle tonus affected pInII amplitude significantly; however, no statistically significant improvement was observed in test–retest investigation after adjustment using muscle tonus. The threshold of the affected side was elevated compared with the non‐affected side in all patients with ATs, whereas 2 of 3 patients showed normal pInII‐ratio. One patient with VNL presented normal VEMP, whereas 2 patients presented no VEMP to the highest stimulus intensity.
Conclusions Interaural difference of thresholds might be the most useful parameters. Adjustment using average muscle tonus is not necessary when the subject is able to get sufficient muscle tonus.</description><subject>Acoustic Stimulation</subject><subject>acoustic tumor</subject><subject>Adult</subject><subject>Afferent Pathways - physiopathology</subject><subject>Aged</subject><subject>Biological and medical sciences</subject><subject>Ear, auditive nerve, cochleovestibular tract, facial nerve: diseases, semeiology</subject><subject>Electrodiagnosis. Electric activity recording</subject><subject>Electromyography</subject><subject>Evoked Potentials, Motor - physiology</subject><subject>Female</subject><subject>Functional Laterality - physiology</subject><subject>Humans</subject><subject>inferior vestibular nerve</subject><subject>Investigative techniques, diagnostic techniques (general aspects)</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Neck Muscles - innervation</subject><subject>Nervous system</subject><subject>Neuroma, Acoustic - diagnosis</subject><subject>Neuroma, Acoustic - physiopathology</subject><subject>Otorhinolaryngology. Stomatology</subject><subject>Predictive Value of Tests</subject><subject>Reference Values</subject><subject>Saccule and Utricle - physiopathology</subject><subject>sacculus</subject><subject>Tumors</subject><subject>Vestibular evoked myogenic potential</subject><subject>Vestibular Nerve - physiopathology</subject><subject>vestibular neurolabyrinthitis</subject><subject>Vestibular Neuronitis - diagnosis</subject><subject>Vestibular Neuronitis - physiopathology</subject><issn>0023-852X</issn><issn>1531-4995</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkEFPGzEQhS1EBSn0L6CVkLi59XjWa-8xSoEiBYoimpaT5XVsZLLJpnbSkn9fh4T0iiVrNE_fvBk9Qgpgn4HV8gvLTwiUlDMGDHNH8-figPRAINCyrsUh6WUJqRL81zH5mNJzZiUKdkSOATgvpap6BMYmBjO3ruh8MXZpGZpVayK9_NNN3aS4XXdPbh5scd8t3XwZTJtOyQefi_u0qyfkx9Xlw-AbHX6_vhn0h9SWqAQV0mNpHKCp0Vfc-jrr3llmrGq4UF6imaBA1TSlaara4oSjsdKDBCa8whNysfVdxO73Kl-mZyFZ17Zm7rpV0pJVpaoEZFBtQRu7lKLzehHDzMS1BqY3cem3uPQ-Lv0aVx492-1YNTM3-T-4yycD5zvAJGtaH3NUIe05Vcuas0x93VJ_Q-vW716vh_3RoxAlQFZfr6Fbm5CW7mVvY-JUVxKl0D_vrvUVwGC0aTj-A912kis</recordid><startdate>200103</startdate><enddate>200103</enddate><creator>Ochi, Kentaro</creator><creator>Ohashi, Toru</creator><creator>Nishino, Hirohito</creator><general>John Wiley & Sons, Inc</general><general>Wiley-Blackwell</general><scope>BSCLL</scope><scope>IQODW</scope><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>8BM</scope></search><sort><creationdate>200103</creationdate><title>Variance of Vestibular-Evoked Myogenic Potentials</title><author>Ochi, Kentaro ; Ohashi, Toru ; Nishino, Hirohito</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4385-57f34ae13a93f62cf9c43fec0ac8b258f73ad3538bb4ab69c3d23ac7f17105f83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><topic>Acoustic Stimulation</topic><topic>acoustic tumor</topic><topic>Adult</topic><topic>Afferent Pathways - physiopathology</topic><topic>Aged</topic><topic>Biological and medical sciences</topic><topic>Ear, auditive nerve, cochleovestibular tract, facial nerve: diseases, semeiology</topic><topic>Electrodiagnosis. Electric activity recording</topic><topic>Electromyography</topic><topic>Evoked Potentials, Motor - physiology</topic><topic>Female</topic><topic>Functional Laterality - physiology</topic><topic>Humans</topic><topic>inferior vestibular nerve</topic><topic>Investigative techniques, diagnostic techniques (general aspects)</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Neck Muscles - innervation</topic><topic>Nervous system</topic><topic>Neuroma, Acoustic - diagnosis</topic><topic>Neuroma, Acoustic - physiopathology</topic><topic>Otorhinolaryngology. Stomatology</topic><topic>Predictive Value of Tests</topic><topic>Reference Values</topic><topic>Saccule and Utricle - physiopathology</topic><topic>sacculus</topic><topic>Tumors</topic><topic>Vestibular evoked myogenic potential</topic><topic>Vestibular Nerve - physiopathology</topic><topic>vestibular neurolabyrinthitis</topic><topic>Vestibular Neuronitis - diagnosis</topic><topic>Vestibular Neuronitis - physiopathology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ochi, Kentaro</creatorcontrib><creatorcontrib>Ohashi, Toru</creatorcontrib><creatorcontrib>Nishino, Hirohito</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><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>ComDisDome</collection><jtitle>The Laryngoscope</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ochi, Kentaro</au><au>Ohashi, Toru</au><au>Nishino, Hirohito</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Variance of Vestibular-Evoked Myogenic Potentials</atitle><jtitle>The Laryngoscope</jtitle><addtitle>The Laryngoscope</addtitle><date>2001-03</date><risdate>2001</risdate><volume>111</volume><issue>3</issue><spage>522</spage><epage>527</epage><pages>522-527</pages><issn>0023-852X</issn><eissn>1531-4995</eissn><coden>LARYA8</coden><abstract>Objectives/Hypothesis Vestibular‐evoked myogenic potential (VEMP) has been thought to originate from sacculus. The variance of this potential and the effectiveness of the adjustments of pInII amplitudes using average muscle tonus of ipsilateral sternocleidomastoid muscle were evaluated. In addition, clinical application of VEMP was examined in patients with acoustic tumors (ATs) and vestibular neurolabyrinthitis (VNL).
Study Design Prospective evaluation of the VEMP in 18 normal volunteers and 6 patients.
Methods Variance and left–right difference of each parameter, including pI latency, nII latency, pInII amplitude, and threshold, was analyzed. Input– output function of pInII amplitude was evaluated. Average muscle tonus was calculated in 20 ears and applied for adjustment of pInII amplitude. Sensitivity of each parameter of VEMP was examined in 3 patients with ATs and 3 patients with VNL.
Results VEMP was present in all 36 ears of 18 control subjects. Thresholds of VEMP for normal subjects were 80 to 95 dB normal hearing level (nHL). The muscle tonus affected pInII amplitude significantly; however, no statistically significant improvement was observed in test–retest investigation after adjustment using muscle tonus. The threshold of the affected side was elevated compared with the non‐affected side in all patients with ATs, whereas 2 of 3 patients showed normal pInII‐ratio. One patient with VNL presented normal VEMP, whereas 2 patients presented no VEMP to the highest stimulus intensity.
Conclusions Interaural difference of thresholds might be the most useful parameters. Adjustment using average muscle tonus is not necessary when the subject is able to get sufficient muscle tonus.</abstract><cop>Hoboken, NJ</cop><pub>John Wiley & Sons, Inc</pub><pmid>11224786</pmid><doi>10.1097/00005537-200103000-00025</doi><tpages>6</tpages></addata></record> |
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| ispartof | The Laryngoscope, 2001-03, Vol.111 (3), p.522-527 |
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| source | MEDLINE; Journals@Ovid Complete; Wiley Online Library All Journals |
| subjects | Acoustic Stimulation acoustic tumor Adult Afferent Pathways - physiopathology Aged Biological and medical sciences Ear, auditive nerve, cochleovestibular tract, facial nerve: diseases, semeiology Electrodiagnosis. Electric activity recording Electromyography Evoked Potentials, Motor - physiology Female Functional Laterality - physiology Humans inferior vestibular nerve Investigative techniques, diagnostic techniques (general aspects) Male Medical sciences Neck Muscles - innervation Nervous system Neuroma, Acoustic - diagnosis Neuroma, Acoustic - physiopathology Otorhinolaryngology. Stomatology Predictive Value of Tests Reference Values Saccule and Utricle - physiopathology sacculus Tumors Vestibular evoked myogenic potential Vestibular Nerve - physiopathology vestibular neurolabyrinthitis Vestibular Neuronitis - diagnosis Vestibular Neuronitis - physiopathology |
| title | Variance of Vestibular-Evoked Myogenic Potentials |
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