A comparison between derivation optimization and Cz′–FPz for posterior tibial P37 somatosensory evoked potential intraoperative monitoring
To compare P37 derivation optimization to Cz′–FPz. After induction in 120 patients, monitoring derivations optimized by mapping FPz, Cz, Cz′, Pz, C4′, C2′, C1′ and C3′-mastoid to determine the P37 and N37 maximums for use as inputs 1 and 2 were compared to Cz′–FPz. This was repeated later in 35 surg...
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| Veröffentlicht in: | Clinical neurophysiology 2004-08, Vol.115 (8), p.1925-1930 |
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| creator | MacDonald, D.B. Stigsby, B. Al Zayed, Z. |
| description | To compare P37 derivation optimization to Cz′–FPz.
After induction in 120 patients, monitoring derivations optimized by mapping FPz, Cz, Cz′, Pz, C4′, C2′, C1′ and C3′-mastoid to determine the P37 and N37 maximums for use as inputs 1 and 2 were compared to Cz′–FPz. This was repeated later in 35 surgeries.
Eleven optimal derivations occurred and usually differed between sides. Input 1 was Cz′, Pz, Cz, iCi′, or Ci′ and input 2 was Cc′, FPz, Ci′ or Pz. Even the most frequent Cz′–Cc′ derivation was optimal for both sides of an individual in only 17% and this was true for Cz′–FPz in only 4%. Optimization produced higher amplitudes than Cz′–FPz (
P |
| doi_str_mv | 10.1016/j.clinph.2004.03.008 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_66719655</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S1388245704001051</els_id><sourcerecordid>66719655</sourcerecordid><originalsourceid>FETCH-LOGICAL-c388t-46af6b23aefc1d5db5ee86d78945bc9a30832083f27b9a451299d4eec08296fa3</originalsourceid><addsrcrecordid>eNp9kcFu1DAQhi0EoqXwBgj5ArcE23Ec54JUrSggVaIHOFuOPQEviR1s76LuqU_AhTfhkfokeJWVeuNgeWb0za-Z-RF6SUlNCRVvt7WZnF--14wQXpOmJkQ-QudUdqySfcsel7iRsmK87c7Qs5S2hJCOcPYUndGWiSN4jn5fYhPmRUeXgscD5F8AHluIbq-zK6WwZDe7w5pob_HmcH_39_7uz9XNAY8h4iWkXPASZTc4PeGbpsMpzDqHBD6FeIthH36ALWQGn4-I8znqsEAssnvAc_Auh-j8t-foyainBC9O_wX6evX-y-Zjdf35w6fN5XVlykq54kKPYmCNhtFQ29qhBZDCdrLn7WB63RDZsPJG1g295i1lfW85gCGS9WLUzQV6s-ouMfzcQcpqdsnANGkPYZeUEB3tRdsWkK-giSGlCKNaopt1vFWUqKMPaqtWH9TRB0UaVXwoba9O-rthBvvQdDp8AV6fAJ2MnsaovXHpgROk4UTQwr1bOSjX2DuIKhkH3oB1EUxWNrj_T_IPak-uNw</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>66719655</pqid></control><display><type>article</type><title>A comparison between derivation optimization and Cz′–FPz for posterior tibial P37 somatosensory evoked potential intraoperative monitoring</title><source>Elsevier ScienceDirect Journals Complete - AutoHoldings</source><source>MEDLINE</source><creator>MacDonald, D.B. ; Stigsby, B. ; Al Zayed, Z.</creator><creatorcontrib>MacDonald, D.B. ; Stigsby, B. ; Al Zayed, Z.</creatorcontrib><description>To compare P37 derivation optimization to Cz′–FPz.
After induction in 120 patients, monitoring derivations optimized by mapping FPz, Cz, Cz′, Pz, C4′, C2′, C1′ and C3′-mastoid to determine the P37 and N37 maximums for use as inputs 1 and 2 were compared to Cz′–FPz. This was repeated later in 35 surgeries.
Eleven optimal derivations occurred and usually differed between sides. Input 1 was Cz′, Pz, Cz, iCi′, or Ci′ and input 2 was Cc′, FPz, Ci′ or Pz. Even the most frequent Cz′–Cc′ derivation was optimal for both sides of an individual in only 17% and this was true for Cz′–FPz in only 4%. Optimization produced higher amplitudes than Cz′–FPz (
P<0.001). The ratio was
≥
2
:1
in 61% of patients and ≥2:1 in 28%, approximately halving or quartering averaging times. Optimization assessed decussation, disclosing non-decussation in one patient while Cz′–FPz did not. Alterations of P37 topography that reduced initially optimal derivation amplitude and made a different derivation optimal were demonstrated by repeat optimization in 13 of 35 patients, preventing misinterpretation in one. While also affected, Cz′–FPz neither detected nor adjusted for potentially misleading topographic changes.
Higher amplitudes, decussation assessment and topographic adjustment make P37 derivation optimization superior to Cz′–FPz for monitoring this highly variable potential.</description><identifier>ISSN: 1388-2457</identifier><identifier>EISSN: 1872-8952</identifier><identifier>DOI: 10.1016/j.clinph.2004.03.008</identifier><identifier>PMID: 15261872</identifier><language>eng</language><publisher>Shannon: Elsevier Ireland Ltd</publisher><subject>Adolescent ; Adult ; Aged ; Biological and medical sciences ; Child ; Child, Preschool ; Confidence Intervals ; Electric Stimulation - methods ; Electrodiagnosis. Electric activity recording ; Evoked Potentials, Somatosensory - physiology ; Female ; Fundamental and applied biological sciences. Psychology ; Humans ; Intraoperative monitoring ; Investigative techniques, diagnostic techniques (general aspects) ; Male ; Medical sciences ; Middle Aged ; Monitoring, Intraoperative - methods ; Nervous system ; Posterior tibial nerve ; Prospective Studies ; Somatosensory evoked potentials ; Somesthesis and somesthetic pathways (proprioception, exteroception, nociception); interoception; electrolocation. Sensory receptors ; Tibial Nerve - physiology ; Vertebrates: nervous system and sense organs</subject><ispartof>Clinical neurophysiology, 2004-08, Vol.115 (8), p.1925-1930</ispartof><rights>2004 International Federation of Clinical Neurophysiology</rights><rights>2005 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c388t-46af6b23aefc1d5db5ee86d78945bc9a30832083f27b9a451299d4eec08296fa3</citedby><cites>FETCH-LOGICAL-c388t-46af6b23aefc1d5db5ee86d78945bc9a30832083f27b9a451299d4eec08296fa3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.clinph.2004.03.008$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3549,27923,27924,45994</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=16034061$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/15261872$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>MacDonald, D.B.</creatorcontrib><creatorcontrib>Stigsby, B.</creatorcontrib><creatorcontrib>Al Zayed, Z.</creatorcontrib><title>A comparison between derivation optimization and Cz′–FPz for posterior tibial P37 somatosensory evoked potential intraoperative monitoring</title><title>Clinical neurophysiology</title><addtitle>Clin Neurophysiol</addtitle><description>To compare P37 derivation optimization to Cz′–FPz.
After induction in 120 patients, monitoring derivations optimized by mapping FPz, Cz, Cz′, Pz, C4′, C2′, C1′ and C3′-mastoid to determine the P37 and N37 maximums for use as inputs 1 and 2 were compared to Cz′–FPz. This was repeated later in 35 surgeries.
Eleven optimal derivations occurred and usually differed between sides. Input 1 was Cz′, Pz, Cz, iCi′, or Ci′ and input 2 was Cc′, FPz, Ci′ or Pz. Even the most frequent Cz′–Cc′ derivation was optimal for both sides of an individual in only 17% and this was true for Cz′–FPz in only 4%. Optimization produced higher amplitudes than Cz′–FPz (
P<0.001). The ratio was
≥
2
:1
in 61% of patients and ≥2:1 in 28%, approximately halving or quartering averaging times. Optimization assessed decussation, disclosing non-decussation in one patient while Cz′–FPz did not. Alterations of P37 topography that reduced initially optimal derivation amplitude and made a different derivation optimal were demonstrated by repeat optimization in 13 of 35 patients, preventing misinterpretation in one. While also affected, Cz′–FPz neither detected nor adjusted for potentially misleading topographic changes.
Higher amplitudes, decussation assessment and topographic adjustment make P37 derivation optimization superior to Cz′–FPz for monitoring this highly variable potential.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Aged</subject><subject>Biological and medical sciences</subject><subject>Child</subject><subject>Child, Preschool</subject><subject>Confidence Intervals</subject><subject>Electric Stimulation - methods</subject><subject>Electrodiagnosis. Electric activity recording</subject><subject>Evoked Potentials, Somatosensory - physiology</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Humans</subject><subject>Intraoperative monitoring</subject><subject>Investigative techniques, diagnostic techniques (general aspects)</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Middle Aged</subject><subject>Monitoring, Intraoperative - methods</subject><subject>Nervous system</subject><subject>Posterior tibial nerve</subject><subject>Prospective Studies</subject><subject>Somatosensory evoked potentials</subject><subject>Somesthesis and somesthetic pathways (proprioception, exteroception, nociception); interoception; electrolocation. Sensory receptors</subject><subject>Tibial Nerve - physiology</subject><subject>Vertebrates: nervous system and sense organs</subject><issn>1388-2457</issn><issn>1872-8952</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kcFu1DAQhi0EoqXwBgj5ArcE23Ec54JUrSggVaIHOFuOPQEviR1s76LuqU_AhTfhkfokeJWVeuNgeWb0za-Z-RF6SUlNCRVvt7WZnF--14wQXpOmJkQ-QudUdqySfcsel7iRsmK87c7Qs5S2hJCOcPYUndGWiSN4jn5fYhPmRUeXgscD5F8AHluIbq-zK6WwZDe7w5pob_HmcH_39_7uz9XNAY8h4iWkXPASZTc4PeGbpsMpzDqHBD6FeIthH36ALWQGn4-I8znqsEAssnvAc_Auh-j8t-foyainBC9O_wX6evX-y-Zjdf35w6fN5XVlykq54kKPYmCNhtFQ29qhBZDCdrLn7WB63RDZsPJG1g295i1lfW85gCGS9WLUzQV6s-ouMfzcQcpqdsnANGkPYZeUEB3tRdsWkK-giSGlCKNaopt1vFWUqKMPaqtWH9TRB0UaVXwoba9O-rthBvvQdDp8AV6fAJ2MnsaovXHpgROk4UTQwr1bOSjX2DuIKhkH3oB1EUxWNrj_T_IPak-uNw</recordid><startdate>20040801</startdate><enddate>20040801</enddate><creator>MacDonald, D.B.</creator><creator>Stigsby, B.</creator><creator>Al Zayed, Z.</creator><general>Elsevier Ireland Ltd</general><general>Elsevier Science</general><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></search><sort><creationdate>20040801</creationdate><title>A comparison between derivation optimization and Cz′–FPz for posterior tibial P37 somatosensory evoked potential intraoperative monitoring</title><author>MacDonald, D.B. ; Stigsby, B. ; Al Zayed, Z.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c388t-46af6b23aefc1d5db5ee86d78945bc9a30832083f27b9a451299d4eec08296fa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Aged</topic><topic>Biological and medical sciences</topic><topic>Child</topic><topic>Child, Preschool</topic><topic>Confidence Intervals</topic><topic>Electric Stimulation - methods</topic><topic>Electrodiagnosis. Electric activity recording</topic><topic>Evoked Potentials, Somatosensory - physiology</topic><topic>Female</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Humans</topic><topic>Intraoperative monitoring</topic><topic>Investigative techniques, diagnostic techniques (general aspects)</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Middle Aged</topic><topic>Monitoring, Intraoperative - methods</topic><topic>Nervous system</topic><topic>Posterior tibial nerve</topic><topic>Prospective Studies</topic><topic>Somatosensory evoked potentials</topic><topic>Somesthesis and somesthetic pathways (proprioception, exteroception, nociception); interoception; electrolocation. Sensory receptors</topic><topic>Tibial Nerve - physiology</topic><topic>Vertebrates: nervous system and sense organs</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>MacDonald, D.B.</creatorcontrib><creatorcontrib>Stigsby, B.</creatorcontrib><creatorcontrib>Al Zayed, Z.</creatorcontrib><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><jtitle>Clinical neurophysiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>MacDonald, D.B.</au><au>Stigsby, B.</au><au>Al Zayed, Z.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A comparison between derivation optimization and Cz′–FPz for posterior tibial P37 somatosensory evoked potential intraoperative monitoring</atitle><jtitle>Clinical neurophysiology</jtitle><addtitle>Clin Neurophysiol</addtitle><date>2004-08-01</date><risdate>2004</risdate><volume>115</volume><issue>8</issue><spage>1925</spage><epage>1930</epage><pages>1925-1930</pages><issn>1388-2457</issn><eissn>1872-8952</eissn><abstract>To compare P37 derivation optimization to Cz′–FPz.
After induction in 120 patients, monitoring derivations optimized by mapping FPz, Cz, Cz′, Pz, C4′, C2′, C1′ and C3′-mastoid to determine the P37 and N37 maximums for use as inputs 1 and 2 were compared to Cz′–FPz. This was repeated later in 35 surgeries.
Eleven optimal derivations occurred and usually differed between sides. Input 1 was Cz′, Pz, Cz, iCi′, or Ci′ and input 2 was Cc′, FPz, Ci′ or Pz. Even the most frequent Cz′–Cc′ derivation was optimal for both sides of an individual in only 17% and this was true for Cz′–FPz in only 4%. Optimization produced higher amplitudes than Cz′–FPz (
P<0.001). The ratio was
≥
2
:1
in 61% of patients and ≥2:1 in 28%, approximately halving or quartering averaging times. Optimization assessed decussation, disclosing non-decussation in one patient while Cz′–FPz did not. Alterations of P37 topography that reduced initially optimal derivation amplitude and made a different derivation optimal were demonstrated by repeat optimization in 13 of 35 patients, preventing misinterpretation in one. While also affected, Cz′–FPz neither detected nor adjusted for potentially misleading topographic changes.
Higher amplitudes, decussation assessment and topographic adjustment make P37 derivation optimization superior to Cz′–FPz for monitoring this highly variable potential.</abstract><cop>Shannon</cop><pub>Elsevier Ireland Ltd</pub><pmid>15261872</pmid><doi>10.1016/j.clinph.2004.03.008</doi><tpages>6</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete - AutoHoldings; MEDLINE |
| subjects | Adolescent Adult Aged Biological and medical sciences Child Child, Preschool Confidence Intervals Electric Stimulation - methods Electrodiagnosis. Electric activity recording Evoked Potentials, Somatosensory - physiology Female Fundamental and applied biological sciences. Psychology Humans Intraoperative monitoring Investigative techniques, diagnostic techniques (general aspects) Male Medical sciences Middle Aged Monitoring, Intraoperative - methods Nervous system Posterior tibial nerve Prospective Studies Somatosensory evoked potentials Somesthesis and somesthetic pathways (proprioception, exteroception, nociception) interoception electrolocation. Sensory receptors Tibial Nerve - physiology Vertebrates: nervous system and sense organs |
| title | A comparison between derivation optimization and Cz′–FPz for posterior tibial P37 somatosensory evoked potential intraoperative monitoring |
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