Vocal cord function during recurrent laryngeal nerve injury assessed by accelerometry and EMG
Objective Gradual impairment of nerve conduction is expected to be tightly associated with simultaneous gradual loss of vocal cord contractility, related to the fact that injured axons are connected to a defined number of muscle cells. In clinical studies, there is a time gap between observed advers...
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| Veröffentlicht in: | The Laryngoscope 2020-04, Vol.130 (4), p.1090-1096 |
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| container_title | The Laryngoscope |
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| creator | Dahle, Geir Olav Setså, Erling Johan Svendsen, Øyvind Sverre Stangeland, Lodve Heimdal, John‐Helge Henriksen, Bård Husby, Paul Brauckhoff, Katrin |
| description | Objective
Gradual impairment of nerve conduction is expected to be tightly associated with simultaneous gradual loss of vocal cord contractility, related to the fact that injured axons are connected to a defined number of muscle cells. In clinical studies, there is a time gap between observed adverse electromyographic (EMG) changes and examination of vocal cord function. This study evaluates the impact of intraoperative EMG changes on synchronous vocal cord contractility by simultaneous use of continuous intraoperative neuromonitoring (C‐IONM) and accelerometry for registration of actual vocal cord function at a given change of EMG amplitude.
Methods
EMG was obtained following vagus nerve stimulation by use of C‐IONM. A vocal cord accelerometer probe that could be attached to the vocal cords was developed based on a LIS3DH ultra low‐power high performance three axis linear accelerometer (STMicroelectronics, Geneva, Switzerland). Accelerometer data were registered continuously together with EMG data during traction injury of the recurrent laryngeal nerve (RLN) until an amplitude depression ≤100 μV.
Results
Six RLN from four immature domestic pigs were studied. Vocal cord contractility assessed by vocal cord accelerometry decreased in parallel with EMG amplitude, with significant correlations ranging from 0.707 to 0.968.
Conclusion
Decrease of EMG amplitude during traction injury to the RLN injury is closely associated with a parallel drop in vocal cord contractility.
Level of Evidence
NA Laryngoscope, 130:1090–1096, 2020 |
| doi_str_mv | 10.1002/lary.28215 |
| format | Article |
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Gradual impairment of nerve conduction is expected to be tightly associated with simultaneous gradual loss of vocal cord contractility, related to the fact that injured axons are connected to a defined number of muscle cells. In clinical studies, there is a time gap between observed adverse electromyographic (EMG) changes and examination of vocal cord function. This study evaluates the impact of intraoperative EMG changes on synchronous vocal cord contractility by simultaneous use of continuous intraoperative neuromonitoring (C‐IONM) and accelerometry for registration of actual vocal cord function at a given change of EMG amplitude.
Methods
EMG was obtained following vagus nerve stimulation by use of C‐IONM. A vocal cord accelerometer probe that could be attached to the vocal cords was developed based on a LIS3DH ultra low‐power high performance three axis linear accelerometer (STMicroelectronics, Geneva, Switzerland). Accelerometer data were registered continuously together with EMG data during traction injury of the recurrent laryngeal nerve (RLN) until an amplitude depression ≤100 μV.
Results
Six RLN from four immature domestic pigs were studied. Vocal cord contractility assessed by vocal cord accelerometry decreased in parallel with EMG amplitude, with significant correlations ranging from 0.707 to 0.968.
Conclusion
Decrease of EMG amplitude during traction injury to the RLN injury is closely associated with a parallel drop in vocal cord contractility.
Level of Evidence
NA Laryngoscope, 130:1090–1096, 2020</description><identifier>ISSN: 0023-852X</identifier><identifier>EISSN: 1531-4995</identifier><identifier>DOI: 10.1002/lary.28215</identifier><identifier>PMID: 31373695</identifier><language>eng</language><publisher>Hoboken, USA: John Wiley & Sons, Inc</publisher><subject>Accelerometers ; Accelerometry ; continuous intraoperative neuromonitoring ; recurrent laryngeal nerve injury ; vocal cord contractility</subject><ispartof>The Laryngoscope, 2020-04, Vol.130 (4), p.1090-1096</ispartof><rights>2019 The Authors. published by Wiley Periodicals, Inc. on behalf of The American Laryngological, Rhinological and Otological Society, Inc.</rights><rights>2019 The Authors. The Laryngoscope published by Wiley Periodicals, Inc. on behalf of The American Laryngological, Rhinological and Otological Society, Inc.</rights><rights>2020 The American Laryngological, Rhinological and Otological Society, Inc.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3935-d21c707463e61b5c1cac20fd37375b9b4a964cc2a41ae69269f7e854df330fb33</citedby><cites>FETCH-LOGICAL-c3935-d21c707463e61b5c1cac20fd37375b9b4a964cc2a41ae69269f7e854df330fb33</cites><orcidid>0000-0002-2442-3281</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Flary.28215$$EPDF$$P50$$Gwiley$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Flary.28215$$EHTML$$P50$$Gwiley$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31373695$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Dahle, Geir Olav</creatorcontrib><creatorcontrib>Setså, Erling Johan</creatorcontrib><creatorcontrib>Svendsen, Øyvind Sverre</creatorcontrib><creatorcontrib>Stangeland, Lodve</creatorcontrib><creatorcontrib>Heimdal, John‐Helge</creatorcontrib><creatorcontrib>Henriksen, Bård</creatorcontrib><creatorcontrib>Husby, Paul</creatorcontrib><creatorcontrib>Brauckhoff, Katrin</creatorcontrib><title>Vocal cord function during recurrent laryngeal nerve injury assessed by accelerometry and EMG</title><title>The Laryngoscope</title><addtitle>Laryngoscope</addtitle><description>Objective
Gradual impairment of nerve conduction is expected to be tightly associated with simultaneous gradual loss of vocal cord contractility, related to the fact that injured axons are connected to a defined number of muscle cells. In clinical studies, there is a time gap between observed adverse electromyographic (EMG) changes and examination of vocal cord function. This study evaluates the impact of intraoperative EMG changes on synchronous vocal cord contractility by simultaneous use of continuous intraoperative neuromonitoring (C‐IONM) and accelerometry for registration of actual vocal cord function at a given change of EMG amplitude.
Methods
EMG was obtained following vagus nerve stimulation by use of C‐IONM. A vocal cord accelerometer probe that could be attached to the vocal cords was developed based on a LIS3DH ultra low‐power high performance three axis linear accelerometer (STMicroelectronics, Geneva, Switzerland). Accelerometer data were registered continuously together with EMG data during traction injury of the recurrent laryngeal nerve (RLN) until an amplitude depression ≤100 μV.
Results
Six RLN from four immature domestic pigs were studied. Vocal cord contractility assessed by vocal cord accelerometry decreased in parallel with EMG amplitude, with significant correlations ranging from 0.707 to 0.968.
Conclusion
Decrease of EMG amplitude during traction injury to the RLN injury is closely associated with a parallel drop in vocal cord contractility.
Level of Evidence
NA Laryngoscope, 130:1090–1096, 2020</description><subject>Accelerometers</subject><subject>Accelerometry</subject><subject>continuous intraoperative neuromonitoring</subject><subject>recurrent laryngeal nerve injury</subject><subject>vocal cord contractility</subject><issn>0023-852X</issn><issn>1531-4995</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>24P</sourceid><sourceid>WIN</sourceid><recordid>eNp9kF1LwzAUhoMobk5v_AES8EaEznw0bXM5xpzCRBAVvZCQpqejo0tn0ir792ZueuGFEDiB8_CelwehU0qGlBB2VWu3HrKMUbGH-lRwGsVSin3UD0seZYK99NCR9wtCaMoFOUQ9TnnKEyn66O25MbrGpnEFLjtr2qqxuOhcZefYgemcA9vizQU7hwBacB-AK7vo3Bpr7yG8AufhbwzU4JoltJuNLfDkbnqMDkpdezjZzQF6up48jm-i2f30djyaRYZLLqKCUZOSNE44JDQXhhptGCmLUDIVucxjLZPYGKZjqiGRLJFlCpmIi5JzUuacD9DFNnflmvcOfKuWlQ99am2h6bxiLMk4kSJcGKDzP-ii6ZwN7RTjacaCM0YDdbmljGu8d1CqlauWwYKiRG2kq40S9S09wGe7yC5fQvGL_lgOAN0Cn1UN63-i1Gz08LoN_QL6D4yR</recordid><startdate>202004</startdate><enddate>202004</enddate><creator>Dahle, Geir Olav</creator><creator>Setså, Erling Johan</creator><creator>Svendsen, Øyvind Sverre</creator><creator>Stangeland, Lodve</creator><creator>Heimdal, John‐Helge</creator><creator>Henriksen, Bård</creator><creator>Husby, Paul</creator><creator>Brauckhoff, Katrin</creator><general>John Wiley & Sons, Inc</general><general>Wiley Subscription Services, Inc</general><scope>24P</scope><scope>WIN</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>K9.</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-2442-3281</orcidid></search><sort><creationdate>202004</creationdate><title>Vocal cord function during recurrent laryngeal nerve injury assessed by accelerometry and EMG</title><author>Dahle, Geir Olav ; Setså, Erling Johan ; Svendsen, Øyvind Sverre ; Stangeland, Lodve ; Heimdal, John‐Helge ; Henriksen, Bård ; Husby, Paul ; Brauckhoff, Katrin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3935-d21c707463e61b5c1cac20fd37375b9b4a964cc2a41ae69269f7e854df330fb33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Accelerometers</topic><topic>Accelerometry</topic><topic>continuous intraoperative neuromonitoring</topic><topic>recurrent laryngeal nerve injury</topic><topic>vocal cord contractility</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dahle, Geir Olav</creatorcontrib><creatorcontrib>Setså, Erling Johan</creatorcontrib><creatorcontrib>Svendsen, Øyvind Sverre</creatorcontrib><creatorcontrib>Stangeland, Lodve</creatorcontrib><creatorcontrib>Heimdal, John‐Helge</creatorcontrib><creatorcontrib>Henriksen, Bård</creatorcontrib><creatorcontrib>Husby, Paul</creatorcontrib><creatorcontrib>Brauckhoff, Katrin</creatorcontrib><collection>Wiley Online Library (Open Access Collection)</collection><collection>Wiley Online Library Free Content</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><jtitle>The Laryngoscope</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dahle, Geir Olav</au><au>Setså, Erling Johan</au><au>Svendsen, Øyvind Sverre</au><au>Stangeland, Lodve</au><au>Heimdal, John‐Helge</au><au>Henriksen, Bård</au><au>Husby, Paul</au><au>Brauckhoff, Katrin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Vocal cord function during recurrent laryngeal nerve injury assessed by accelerometry and EMG</atitle><jtitle>The Laryngoscope</jtitle><addtitle>Laryngoscope</addtitle><date>2020-04</date><risdate>2020</risdate><volume>130</volume><issue>4</issue><spage>1090</spage><epage>1096</epage><pages>1090-1096</pages><issn>0023-852X</issn><eissn>1531-4995</eissn><abstract>Objective
Gradual impairment of nerve conduction is expected to be tightly associated with simultaneous gradual loss of vocal cord contractility, related to the fact that injured axons are connected to a defined number of muscle cells. In clinical studies, there is a time gap between observed adverse electromyographic (EMG) changes and examination of vocal cord function. This study evaluates the impact of intraoperative EMG changes on synchronous vocal cord contractility by simultaneous use of continuous intraoperative neuromonitoring (C‐IONM) and accelerometry for registration of actual vocal cord function at a given change of EMG amplitude.
Methods
EMG was obtained following vagus nerve stimulation by use of C‐IONM. A vocal cord accelerometer probe that could be attached to the vocal cords was developed based on a LIS3DH ultra low‐power high performance three axis linear accelerometer (STMicroelectronics, Geneva, Switzerland). Accelerometer data were registered continuously together with EMG data during traction injury of the recurrent laryngeal nerve (RLN) until an amplitude depression ≤100 μV.
Results
Six RLN from four immature domestic pigs were studied. Vocal cord contractility assessed by vocal cord accelerometry decreased in parallel with EMG amplitude, with significant correlations ranging from 0.707 to 0.968.
Conclusion
Decrease of EMG amplitude during traction injury to the RLN injury is closely associated with a parallel drop in vocal cord contractility.
Level of Evidence
NA Laryngoscope, 130:1090–1096, 2020</abstract><cop>Hoboken, USA</cop><pub>John Wiley & Sons, Inc</pub><pmid>31373695</pmid><doi>10.1002/lary.28215</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0002-2442-3281</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Accelerometers Accelerometry continuous intraoperative neuromonitoring recurrent laryngeal nerve injury vocal cord contractility |
| title | Vocal cord function during recurrent laryngeal nerve injury assessed by accelerometry and EMG |
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