Reproducibility of measurements of ventricular activation time using the signal-averaged Frank vectorcardiogram
Interobserver and day-to-day variability in detecting delayed potentials and in measuring duration of ventricular depolarization using the signal-averaged Frank vectorcardiogram were investigated in 20 patients, 12 with and 8 without ventricular tachycardia (VT). No patients were taking antiarrhythm...
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| Veröffentlicht in: | The American journal of cardiology 1986, Vol.57 (1), p.156-160 |
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| container_title | The American journal of cardiology |
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| creator | Denniss, A.Robert Ross, David L. Uther, John B. |
| description | Interobserver and day-to-day variability in detecting delayed potentials and in measuring duration of ventricular depolarization using the signal-averaged Frank vectorcardiogram were investigated in 20 patients, 12 with and 8 without ventricular tachycardia (VT). No patients were taking antiarrhythmic medications, digoxin or β blockers at the time of study. The presence of delayed potentials and duration of ventricular activation were measured 2 times a mean of 5 days apart by 2 observers. Analysis of variance showed no significant interobserver variability in ventricular activation time. Day-to-day differences In ventricular activation times were small in patients without VT, none of whom had delayed potentials at either study. Delayed potentials were present In all 12 patients with VT at the first recording and in 11 at the repeat recording. However, significant (p |
| doi_str_mv | 10.1016/0002-9149(86)90971-9 |
| format | Article |
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No patients were taking antiarrhythmic medications, digoxin or β blockers at the time of study. The presence of delayed potentials and duration of ventricular activation were measured 2 times a mean of 5 days apart by 2 observers. Analysis of variance showed no significant interobserver variability in ventricular activation time. Day-to-day differences In ventricular activation times were small in patients without VT, none of whom had delayed potentials at either study. Delayed potentials were present In all 12 patients with VT at the first recording and in 11 at the repeat recording. However, significant (p <0.01) day-to-day variability was found in ventricular activation times, and 3 of the 12 patients had marked (more than 20 ms) day-to-day changes. It Is concluded that In the absence of medical or surgical intervention, delayed potentials detected on 1 day have a high chance of being present at a repeat recording. However, the exact timing of these delayed potentials shows marked day-to-day variation in some patients. Interobserver variability Is not significant with this method of detecting delayed potentials.</description><identifier>ISSN: 0002-9149</identifier><identifier>EISSN: 1879-1913</identifier><identifier>DOI: 10.1016/0002-9149(86)90971-9</identifier><identifier>PMID: 3942061</identifier><identifier>CODEN: AJCDAG</identifier><language>eng</language><publisher>New York, NY: Elsevier Inc</publisher><subject>Adult ; Aged ; Biological and medical sciences ; Cardiac dysrhythmias ; Cardiology. Vascular system ; Circadian Rhythm ; Heart ; Heart Ventricles - physiopathology ; Humans ; Medical sciences ; Middle Aged ; Tachycardia - physiopathology ; Vectorcardiography</subject><ispartof>The American journal of cardiology, 1986, Vol.57 (1), p.156-160</ispartof><rights>1986</rights><rights>1986 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c452t-720849fdb454018810936161031a998c852bac9bda2f7ef9ae5d3a255860e1e03</citedby><cites>FETCH-LOGICAL-c452t-720849fdb454018810936161031a998c852bac9bda2f7ef9ae5d3a255860e1e03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/0002-9149(86)90971-9$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,4021,27921,27922,27923,45993</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=8510913$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/3942061$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Denniss, A.Robert</creatorcontrib><creatorcontrib>Ross, David L.</creatorcontrib><creatorcontrib>Uther, John B.</creatorcontrib><title>Reproducibility of measurements of ventricular activation time using the signal-averaged Frank vectorcardiogram</title><title>The American journal of cardiology</title><addtitle>Am J Cardiol</addtitle><description>Interobserver and day-to-day variability in detecting delayed potentials and in measuring duration of ventricular depolarization using the signal-averaged Frank vectorcardiogram were investigated in 20 patients, 12 with and 8 without ventricular tachycardia (VT). No patients were taking antiarrhythmic medications, digoxin or β blockers at the time of study. The presence of delayed potentials and duration of ventricular activation were measured 2 times a mean of 5 days apart by 2 observers. Analysis of variance showed no significant interobserver variability in ventricular activation time. Day-to-day differences In ventricular activation times were small in patients without VT, none of whom had delayed potentials at either study. Delayed potentials were present In all 12 patients with VT at the first recording and in 11 at the repeat recording. However, significant (p <0.01) day-to-day variability was found in ventricular activation times, and 3 of the 12 patients had marked (more than 20 ms) day-to-day changes. It Is concluded that In the absence of medical or surgical intervention, delayed potentials detected on 1 day have a high chance of being present at a repeat recording. However, the exact timing of these delayed potentials shows marked day-to-day variation in some patients. Interobserver variability Is not significant with this method of detecting delayed potentials.</description><subject>Adult</subject><subject>Aged</subject><subject>Biological and medical sciences</subject><subject>Cardiac dysrhythmias</subject><subject>Cardiology. Vascular system</subject><subject>Circadian Rhythm</subject><subject>Heart</subject><subject>Heart Ventricles - physiopathology</subject><subject>Humans</subject><subject>Medical sciences</subject><subject>Middle Aged</subject><subject>Tachycardia - physiopathology</subject><subject>Vectorcardiography</subject><issn>0002-9149</issn><issn>1879-1913</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1986</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kFFrFDEQx4Mo9Vr9Bgr7IEUfVjO7m2zyIkixVigIos9hNpk9o7ubmmQP-u2b6x332KdkmN9_mPkx9gb4R-AgP3HOm1pDp98r-UFz3UOtn7ENqF7XoKF9zjYn5CU7T-lvKQGEPGNnre4aLmHDwk-6i8Gt1g9-8vm-CmM1E6Y10kxLTvt6Vz7R23XCWKHNfofZh6XKfqZqTX7ZVvkPVclvF5xq3FHELbnqOuLyr2RtDtFidD5sI86v2IsRp0Svj-8F-3399dfVTX3749v3qy-3te1Ek-u-4arToxs60XFQCrhuJUjgLaDWyirRDGj14LAZexo1knAtNkIoyQmItxfs8jC3XPd_pZTN7JOlacKFwppML6VqWtEVsDuANoaUIo3mLvoZ470BbvaezV6i2Us0SppHz0aX2Nvj_HWYyZ1CR7Gl_-7Yx2RxGosM69MJU6JcBG3BPh8wKi52nqJJ1tNiyflYzBkX_NN7PAC2jpri</recordid><startdate>1986</startdate><enddate>1986</enddate><creator>Denniss, A.Robert</creator><creator>Ross, David L.</creator><creator>Uther, John B.</creator><general>Elsevier Inc</general><general>Elsevier</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>1986</creationdate><title>Reproducibility of measurements of ventricular activation time using the signal-averaged Frank vectorcardiogram</title><author>Denniss, A.Robert ; Ross, David L. ; Uther, John B.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c452t-720849fdb454018810936161031a998c852bac9bda2f7ef9ae5d3a255860e1e03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1986</creationdate><topic>Adult</topic><topic>Aged</topic><topic>Biological and medical sciences</topic><topic>Cardiac dysrhythmias</topic><topic>Cardiology. Vascular system</topic><topic>Circadian Rhythm</topic><topic>Heart</topic><topic>Heart Ventricles - physiopathology</topic><topic>Humans</topic><topic>Medical sciences</topic><topic>Middle Aged</topic><topic>Tachycardia - physiopathology</topic><topic>Vectorcardiography</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Denniss, A.Robert</creatorcontrib><creatorcontrib>Ross, David L.</creatorcontrib><creatorcontrib>Uther, John B.</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>The American journal of cardiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Denniss, A.Robert</au><au>Ross, David L.</au><au>Uther, John B.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reproducibility of measurements of ventricular activation time using the signal-averaged Frank vectorcardiogram</atitle><jtitle>The American journal of cardiology</jtitle><addtitle>Am J Cardiol</addtitle><date>1986</date><risdate>1986</risdate><volume>57</volume><issue>1</issue><spage>156</spage><epage>160</epage><pages>156-160</pages><issn>0002-9149</issn><eissn>1879-1913</eissn><coden>AJCDAG</coden><abstract>Interobserver and day-to-day variability in detecting delayed potentials and in measuring duration of ventricular depolarization using the signal-averaged Frank vectorcardiogram were investigated in 20 patients, 12 with and 8 without ventricular tachycardia (VT). No patients were taking antiarrhythmic medications, digoxin or β blockers at the time of study. The presence of delayed potentials and duration of ventricular activation were measured 2 times a mean of 5 days apart by 2 observers. Analysis of variance showed no significant interobserver variability in ventricular activation time. Day-to-day differences In ventricular activation times were small in patients without VT, none of whom had delayed potentials at either study. Delayed potentials were present In all 12 patients with VT at the first recording and in 11 at the repeat recording. However, significant (p <0.01) day-to-day variability was found in ventricular activation times, and 3 of the 12 patients had marked (more than 20 ms) day-to-day changes. It Is concluded that In the absence of medical or surgical intervention, delayed potentials detected on 1 day have a high chance of being present at a repeat recording. However, the exact timing of these delayed potentials shows marked day-to-day variation in some patients. Interobserver variability Is not significant with this method of detecting delayed potentials.</abstract><cop>New York, NY</cop><pub>Elsevier Inc</pub><pmid>3942061</pmid><doi>10.1016/0002-9149(86)90971-9</doi><tpages>5</tpages></addata></record> |
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| ispartof | The American journal of cardiology, 1986, Vol.57 (1), p.156-160 |
| issn | 0002-9149 1879-1913 |
| language | eng |
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| source | Elsevier ScienceDirect Journals Complete - AutoHoldings; MEDLINE |
| subjects | Adult Aged Biological and medical sciences Cardiac dysrhythmias Cardiology. Vascular system Circadian Rhythm Heart Heart Ventricles - physiopathology Humans Medical sciences Middle Aged Tachycardia - physiopathology Vectorcardiography |
| title | Reproducibility of measurements of ventricular activation time using the signal-averaged Frank vectorcardiogram |
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