Comparative Study of Cochlear Damage With Three Perimodiolar Electrode Designs
Objective To describe intracochlear insertion trauma caused by three perimodiolar cochlear implant electrodes. Study Design Descriptive histological study of 15 human cadaver temporal bones. Methods Fifteen cadaver temporal bones underwent surface preparation and were implanted with one of the follo...
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| Veröffentlicht in: | The Laryngoscope 2003-03, Vol.113 (3), p.415-419 |
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| creator | Eshraghi, Adrien A. Yang, Nathaniel W. Balkany, Thomas J. |
| description | Objective To describe intracochlear insertion trauma caused by three perimodiolar cochlear implant electrodes.
Study Design Descriptive histological study of 15 human cadaver temporal bones.
Methods Fifteen cadaver temporal bones underwent surface preparation and were implanted with one of the following perimodiolar electrode arrays: Combi 40+PM (MedEl Corporation), HiFocus II (Advanced Bionics Corporation), or Contour (Cochlear Corporation). A cryosectioning technique was used to study horizontal sections at 200‐μm intervals with the electrode in place. Image‐enhanced videofluoroscopy and computer‐assisted morphometrics were used to assess the mechanism of insertion trauma and to determine electrode position within the modiolus.
Results Histological examination revealed varying degrees of damage to the spiral ligament, basilar membrane, and osseous spiral lamina. Using a novel grading system for electrode trauma, there was no statistically significant difference among the three electrodes. A literature search of histological studies of a commonly used “standard” electrode showed damage equal to or greater than that seen in the current study.
Conclusions Insertion trauma caused by periomodiolar electrodes occurs to an acceptable degree. Refinement of electrodes based on mechanisms of trauma may be able to further reduce damage. |
| doi_str_mv | 10.1097/00005537-200303000-00005 |
| format | Article |
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Study Design Descriptive histological study of 15 human cadaver temporal bones.
Methods Fifteen cadaver temporal bones underwent surface preparation and were implanted with one of the following perimodiolar electrode arrays: Combi 40+PM (MedEl Corporation), HiFocus II (Advanced Bionics Corporation), or Contour (Cochlear Corporation). A cryosectioning technique was used to study horizontal sections at 200‐μm intervals with the electrode in place. Image‐enhanced videofluoroscopy and computer‐assisted morphometrics were used to assess the mechanism of insertion trauma and to determine electrode position within the modiolus.
Results Histological examination revealed varying degrees of damage to the spiral ligament, basilar membrane, and osseous spiral lamina. Using a novel grading system for electrode trauma, there was no statistically significant difference among the three electrodes. A literature search of histological studies of a commonly used “standard” electrode showed damage equal to or greater than that seen in the current study.
Conclusions Insertion trauma caused by periomodiolar electrodes occurs to an acceptable degree. Refinement of electrodes based on mechanisms of trauma may be able to further reduce damage.</description><identifier>ISSN: 0023-852X</identifier><identifier>EISSN: 1531-4995</identifier><identifier>DOI: 10.1097/00005537-200303000-00005</identifier><identifier>PMID: 12616189</identifier><identifier>CODEN: LARYA8</identifier><language>eng</language><publisher>Hoboken, NJ: John Wiley & Sons, Inc</publisher><subject>Basilar Membrane - injuries ; Biological and medical sciences ; Cochlea - injuries ; Cochlea - pathology ; cochlear implant ; cochlear trauma ; cryomicrotomy ; Culture Techniques ; Deafness ; Electric Stimulation - adverse effects ; Electric Stimulation - instrumentation ; Electrodes, Implanted - adverse effects ; Ent, stomatology, face, injuries. Foreign bodies. Diseases due to physical agents: otorhinolaryngology ; Head and neck surgery. Maxillofacial surgery. Dental surgery. Orthodontics ; Humans ; inner ear ; Medical sciences ; perimodiolar electrode ; Spiral Lamina - injuries ; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases ; Surgery of the ear, the auditive nerve and the facial nerve ; temporal bone ; Temporal Bone - pathology ; Traumas. Diseases due to physical agents</subject><ispartof>The Laryngoscope, 2003-03, Vol.113 (3), p.415-419</ispartof><rights>Copyright © 2003 The Triological Society</rights><rights>2003 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4405-5b8b12308a01b7a87519d5e2547eb741a801ce278b8687156f838c64b23b316c3</citedby><cites>FETCH-LOGICAL-c4405-5b8b12308a01b7a87519d5e2547eb741a801ce278b8687156f838c64b23b316c3</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%2F00005537-200303000-00005$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1097%2F00005537-200303000-00005$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=14600731$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12616189$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Eshraghi, Adrien A.</creatorcontrib><creatorcontrib>Yang, Nathaniel W.</creatorcontrib><creatorcontrib>Balkany, Thomas J.</creatorcontrib><title>Comparative Study of Cochlear Damage With Three Perimodiolar Electrode Designs</title><title>The Laryngoscope</title><addtitle>The Laryngoscope</addtitle><description>Objective To describe intracochlear insertion trauma caused by three perimodiolar cochlear implant electrodes.
Study Design Descriptive histological study of 15 human cadaver temporal bones.
Methods Fifteen cadaver temporal bones underwent surface preparation and were implanted with one of the following perimodiolar electrode arrays: Combi 40+PM (MedEl Corporation), HiFocus II (Advanced Bionics Corporation), or Contour (Cochlear Corporation). A cryosectioning technique was used to study horizontal sections at 200‐μm intervals with the electrode in place. Image‐enhanced videofluoroscopy and computer‐assisted morphometrics were used to assess the mechanism of insertion trauma and to determine electrode position within the modiolus.
Results Histological examination revealed varying degrees of damage to the spiral ligament, basilar membrane, and osseous spiral lamina. Using a novel grading system for electrode trauma, there was no statistically significant difference among the three electrodes. A literature search of histological studies of a commonly used “standard” electrode showed damage equal to or greater than that seen in the current study.
Conclusions Insertion trauma caused by periomodiolar electrodes occurs to an acceptable degree. Refinement of electrodes based on mechanisms of trauma may be able to further reduce damage.</description><subject>Basilar Membrane - injuries</subject><subject>Biological and medical sciences</subject><subject>Cochlea - injuries</subject><subject>Cochlea - pathology</subject><subject>cochlear implant</subject><subject>cochlear trauma</subject><subject>cryomicrotomy</subject><subject>Culture Techniques</subject><subject>Deafness</subject><subject>Electric Stimulation - adverse effects</subject><subject>Electric Stimulation - instrumentation</subject><subject>Electrodes, Implanted - adverse effects</subject><subject>Ent, stomatology, face, injuries. Foreign bodies. Diseases due to physical agents: otorhinolaryngology</subject><subject>Head and neck surgery. Maxillofacial surgery. Dental surgery. Orthodontics</subject><subject>Humans</subject><subject>inner ear</subject><subject>Medical sciences</subject><subject>perimodiolar electrode</subject><subject>Spiral Lamina - injuries</subject><subject>Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases</subject><subject>Surgery of the ear, the auditive nerve and the facial nerve</subject><subject>temporal bone</subject><subject>Temporal Bone - pathology</subject><subject>Traumas. Diseases due to physical agents</subject><issn>0023-852X</issn><issn>1531-4995</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkF9v0zAUxS0EYl3hK6C8wFvGvXH8J49TOgZSVRAMdTxZjnOzBpK6s1Og356UlO0V-8HS8e-ee3QYSxAuEAr1FsYjBFdpBsDHC5D-lZ6wGQqOaV4U4imbAWQ81SK7PWPnMX4HQMUFPGdnmEmUqIsZW5W-39lgh_YnJV-GfX1IfJOU3m06siFZ2N7eUbJuh01yswlEyScKbe_r1nfj91VHbgi-pmRBsb3bxhfsWWO7SC9P75x9fXd1U75Plx-vP5SXy9TlOYhUVLrCjIO2gJWyWgksakGZyBVVKkerAR1lSldaaoVCNpprJ_Mq4xVH6ficvZl8d8Hf7ykOpm-jo66zW_L7aBQHycVY0ZzpCXTBxxioMbsxvw0Hg2COXZp_XZqHLidpHH112rGveqofB0_ljcDrE2Cjs10T7Na18ZHLJYDiOHKLifvVdnT47wBmefn5mxA54lE95kknmzYO9PvBxoYfRiquhFmvrg1yfrtGXpoV_wMdZZtZ</recordid><startdate>200303</startdate><enddate>200303</enddate><creator>Eshraghi, Adrien A.</creator><creator>Yang, Nathaniel W.</creator><creator>Balkany, Thomas J.</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>200303</creationdate><title>Comparative Study of Cochlear Damage With Three Perimodiolar Electrode Designs</title><author>Eshraghi, Adrien A. ; Yang, Nathaniel W. ; Balkany, Thomas J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4405-5b8b12308a01b7a87519d5e2547eb741a801ce278b8687156f838c64b23b316c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Basilar Membrane - injuries</topic><topic>Biological and medical sciences</topic><topic>Cochlea - injuries</topic><topic>Cochlea - pathology</topic><topic>cochlear implant</topic><topic>cochlear trauma</topic><topic>cryomicrotomy</topic><topic>Culture Techniques</topic><topic>Deafness</topic><topic>Electric Stimulation - adverse effects</topic><topic>Electric Stimulation - instrumentation</topic><topic>Electrodes, Implanted - adverse effects</topic><topic>Ent, stomatology, face, injuries. Foreign bodies. Diseases due to physical agents: otorhinolaryngology</topic><topic>Head and neck surgery. Maxillofacial surgery. Dental surgery. Orthodontics</topic><topic>Humans</topic><topic>inner ear</topic><topic>Medical sciences</topic><topic>perimodiolar electrode</topic><topic>Spiral Lamina - injuries</topic><topic>Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases</topic><topic>Surgery of the ear, the auditive nerve and the facial nerve</topic><topic>temporal bone</topic><topic>Temporal Bone - pathology</topic><topic>Traumas. Diseases due to physical agents</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Eshraghi, Adrien A.</creatorcontrib><creatorcontrib>Yang, Nathaniel W.</creatorcontrib><creatorcontrib>Balkany, Thomas J.</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>Eshraghi, Adrien A.</au><au>Yang, Nathaniel W.</au><au>Balkany, Thomas J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparative Study of Cochlear Damage With Three Perimodiolar Electrode Designs</atitle><jtitle>The Laryngoscope</jtitle><addtitle>The Laryngoscope</addtitle><date>2003-03</date><risdate>2003</risdate><volume>113</volume><issue>3</issue><spage>415</spage><epage>419</epage><pages>415-419</pages><issn>0023-852X</issn><eissn>1531-4995</eissn><coden>LARYA8</coden><abstract>Objective To describe intracochlear insertion trauma caused by three perimodiolar cochlear implant electrodes.
Study Design Descriptive histological study of 15 human cadaver temporal bones.
Methods Fifteen cadaver temporal bones underwent surface preparation and were implanted with one of the following perimodiolar electrode arrays: Combi 40+PM (MedEl Corporation), HiFocus II (Advanced Bionics Corporation), or Contour (Cochlear Corporation). A cryosectioning technique was used to study horizontal sections at 200‐μm intervals with the electrode in place. Image‐enhanced videofluoroscopy and computer‐assisted morphometrics were used to assess the mechanism of insertion trauma and to determine electrode position within the modiolus.
Results Histological examination revealed varying degrees of damage to the spiral ligament, basilar membrane, and osseous spiral lamina. Using a novel grading system for electrode trauma, there was no statistically significant difference among the three electrodes. A literature search of histological studies of a commonly used “standard” electrode showed damage equal to or greater than that seen in the current study.
Conclusions Insertion trauma caused by periomodiolar electrodes occurs to an acceptable degree. Refinement of electrodes based on mechanisms of trauma may be able to further reduce damage.</abstract><cop>Hoboken, NJ</cop><pub>John Wiley & Sons, Inc</pub><pmid>12616189</pmid><doi>10.1097/00005537-200303000-00005</doi><tpages>5</tpages></addata></record> |
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| source | MEDLINE; Journals@Ovid Complete; Access via Wiley Online Library |
| subjects | Basilar Membrane - injuries Biological and medical sciences Cochlea - injuries Cochlea - pathology cochlear implant cochlear trauma cryomicrotomy Culture Techniques Deafness Electric Stimulation - adverse effects Electric Stimulation - instrumentation Electrodes, Implanted - adverse effects Ent, stomatology, face, injuries. Foreign bodies. Diseases due to physical agents: otorhinolaryngology Head and neck surgery. Maxillofacial surgery. Dental surgery. Orthodontics Humans inner ear Medical sciences perimodiolar electrode Spiral Lamina - injuries Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases Surgery of the ear, the auditive nerve and the facial nerve temporal bone Temporal Bone - pathology Traumas. Diseases due to physical agents |
| title | Comparative Study of Cochlear Damage With Three Perimodiolar Electrode Designs |
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