QRST time integral values in 12-lead electrocardiograms before and after radiofrequency catheter ablation in patients with Wolff-Parkinson-White syndrome
Identifieur interne : 000047 ( Main/Corpus ); précédent : 000046; suivant : 000048QRST time integral values in 12-lead electrocardiograms before and after radiofrequency catheter ablation in patients with Wolff-Parkinson-White syndrome
Auteurs : Tetsuo Yanagawa ; Makoto Hirai ; Hiroshi Hayashi ; Hiroaki Sano ; Yasushi Tomita ; Yasuya Inden ; Hidehiko SaitoSource :
- Journal of the American College of Cardiology [ 0735-1097 ] ; 1995.
Abstract
Objectives. We investigated the usefulness of QRST values obtained from 12-lead electrocardiograms (ECGs) for identification of repolarization abnormalities before and after radiofrequency ablation in patients with Wolff-Parkinson-White syndrome.Background. Marked T wave abnormalities often appear after ablation and have been attributed to a continuation of repolarization abnormalities present before ablation (cardiac memory). However, to our knowledge repolarization properties before and after ablation have not been assessed quantitatively.Methods. We calculated the ECG QRST values from 53 patients with Wolff-Parkinson-White syndrome and compared these values before, immediately after and 1 day and 1 week after successful ablation in 25 patients.Results. QRST values were abnormally high in lead V1 in 7 of 28 patients with a left-sided accessory pathway and abnormally low in leads III and aVF and high in lead aVL in 12, 9 and 10 of 20 patients, respectively, with a right-sided accessory pathway. Preexisting QRST abnormalities were still present immediately and 1 day after ablation but were usually absent by 1 week after ablation. QRST values before, immediately after and 1 day after ablation were not significantly different in any lead. In 14 patients with ablation of a left-sided accessory pathway, QRST values before, immediately after and 1 day after ablation in lead V1 and immediately after ablation in leads I, aVR and V2 were significantly different from QRST values in those leads 1 week after ablation. In six patients with ablation of a right-sided accessory pathway, QRST values before, immediately after and 1 day after ablation in leads III, aVL and aVF and immediately after ablation in lead II were significantly different from QRST values in those leads 1 week after ablation.Conclusions. Electrocardiographic QRST values may provide useful quantitative information with respect to repolarization properties before and after ablation in patients with Wolff-Parkinson-White syndrome that is otherwise difficult to obtain by conventional ECG analysis.
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DOI: 10.1016/0735-1097(95)00094-K
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<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">QRST time integral values in 12-lead electrocardiograms before and after radiofrequency catheter ablation in patients with Wolff-Parkinson-White syndrome</title><author><name sortKey="Yanagawa, Tetsuo" sort="Yanagawa, Tetsuo" uniqKey="Yanagawa T" first="Tetsuo" last="Yanagawa">Tetsuo Yanagawa</name><affiliation><mods:affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</mods:affiliation></affiliation></author><author><name sortKey="Hirai, Makoto" sort="Hirai, Makoto" uniqKey="Hirai M" first="Makoto" last="Hirai">Makoto Hirai</name><affiliation><mods:affiliation>Address for correspondence: Dr. Makoto Hirai, Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, 65 Tsurumai, Showaku, Nagoya 466, Japan.</mods:affiliation></affiliation><affiliation><mods:affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</mods:affiliation></affiliation></author><author><name sortKey="Hayashi, Hiroshi" sort="Hayashi, Hiroshi" uniqKey="Hayashi H" first="Hiroshi" last="Hayashi">Hiroshi Hayashi</name><affiliation><mods:affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</mods:affiliation></affiliation></author><author><name sortKey="Sano, Hiroaki" sort="Sano, Hiroaki" uniqKey="Sano H" first="Hiroaki" last="Sano">Hiroaki Sano</name><affiliation><mods:affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</mods:affiliation></affiliation></author><author><name sortKey="Tomita, Yasushi" sort="Tomita, Yasushi" uniqKey="Tomita Y" first="Yasushi" last="Tomita">Yasushi Tomita</name><affiliation><mods:affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</mods:affiliation></affiliation></author><author><name sortKey="Inden, Yasuya" sort="Inden, Yasuya" uniqKey="Inden Y" first="Yasuya" last="Inden">Yasuya Inden</name><affiliation><mods:affiliation>Division of Cardiology, Nagoya Daini Red Cross Hospital, Nagoya, Japan</mods:affiliation></affiliation></author><author><name sortKey="Saito, Hidehiko" sort="Saito, Hidehiko" uniqKey="Saito H" first="Hidehiko" last="Saito">Hidehiko Saito</name><affiliation><mods:affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:AA6BB18159964E59B4CD2A838CE9224FB86897A7</idno><date when="1995" year="1995">1995</date><idno type="doi">10.1016/0735-1097(95)00094-K</idno><idno type="url">https://api.istex.fr/document/AA6BB18159964E59B4CD2A838CE9224FB86897A7/fulltext/pdf</idno><idno type="wicri:Area/Main/Corpus">000047</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">QRST time integral values in 12-lead electrocardiograms before and after radiofrequency catheter ablation in patients with Wolff-Parkinson-White syndrome</title><author><name sortKey="Yanagawa, Tetsuo" sort="Yanagawa, Tetsuo" uniqKey="Yanagawa T" first="Tetsuo" last="Yanagawa">Tetsuo Yanagawa</name><affiliation><mods:affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</mods:affiliation></affiliation></author><author><name sortKey="Hirai, Makoto" sort="Hirai, Makoto" uniqKey="Hirai M" first="Makoto" last="Hirai">Makoto Hirai</name><affiliation><mods:affiliation>Address for correspondence: Dr. Makoto Hirai, Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, 65 Tsurumai, Showaku, Nagoya 466, Japan.</mods:affiliation></affiliation><affiliation><mods:affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</mods:affiliation></affiliation></author><author><name sortKey="Hayashi, Hiroshi" sort="Hayashi, Hiroshi" uniqKey="Hayashi H" first="Hiroshi" last="Hayashi">Hiroshi Hayashi</name><affiliation><mods:affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</mods:affiliation></affiliation></author><author><name sortKey="Sano, Hiroaki" sort="Sano, Hiroaki" uniqKey="Sano H" first="Hiroaki" last="Sano">Hiroaki Sano</name><affiliation><mods:affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</mods:affiliation></affiliation></author><author><name sortKey="Tomita, Yasushi" sort="Tomita, Yasushi" uniqKey="Tomita Y" first="Yasushi" last="Tomita">Yasushi Tomita</name><affiliation><mods:affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</mods:affiliation></affiliation></author><author><name sortKey="Inden, Yasuya" sort="Inden, Yasuya" uniqKey="Inden Y" first="Yasuya" last="Inden">Yasuya Inden</name><affiliation><mods:affiliation>Division of Cardiology, Nagoya Daini Red Cross Hospital, Nagoya, Japan</mods:affiliation></affiliation></author><author><name sortKey="Saito, Hidehiko" sort="Saito, Hidehiko" uniqKey="Saito H" first="Hidehiko" last="Saito">Hidehiko Saito</name><affiliation><mods:affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of the American College of Cardiology</title><title level="j" type="abbrev">JAC</title><idno type="ISSN">0735-1097</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1995">1995</date><biblScope unit="volume">25</biblScope><biblScope unit="issue">7</biblScope><biblScope unit="page" from="1584">1584</biblScope><biblScope unit="page" to="1590">1590</biblScope></imprint><idno type="ISSN">0735-1097</idno></series><idno type="istex">AA6BB18159964E59B4CD2A838CE9224FB86897A7</idno><idno type="DOI">10.1016/0735-1097(95)00094-K</idno><idno type="PII">0735-1097(95)00094-K</idno><idno type="ArticleID">9500094K</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0735-1097</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Objectives. We investigated the usefulness of QRST values obtained from 12-lead electrocardiograms (ECGs) for identification of repolarization abnormalities before and after radiofrequency ablation in patients with Wolff-Parkinson-White syndrome.Background. Marked T wave abnormalities often appear after ablation and have been attributed to a continuation of repolarization abnormalities present before ablation (cardiac memory). However, to our knowledge repolarization properties before and after ablation have not been assessed quantitatively.Methods. We calculated the ECG QRST values from 53 patients with Wolff-Parkinson-White syndrome and compared these values before, immediately after and 1 day and 1 week after successful ablation in 25 patients.Results. QRST values were abnormally high in lead V1 in 7 of 28 patients with a left-sided accessory pathway and abnormally low in leads III and aVF and high in lead aVL in 12, 9 and 10 of 20 patients, respectively, with a right-sided accessory pathway. Preexisting QRST abnormalities were still present immediately and 1 day after ablation but were usually absent by 1 week after ablation. QRST values before, immediately after and 1 day after ablation were not significantly different in any lead. In 14 patients with ablation of a left-sided accessory pathway, QRST values before, immediately after and 1 day after ablation in lead V1 and immediately after ablation in leads I, aVR and V2 were significantly different from QRST values in those leads 1 week after ablation. In six patients with ablation of a right-sided accessory pathway, QRST values before, immediately after and 1 day after ablation in leads III, aVL and aVF and immediately after ablation in lead II were significantly different from QRST values in those leads 1 week after ablation.Conclusions. Electrocardiographic QRST values may provide useful quantitative information with respect to repolarization properties before and after ablation in patients with Wolff-Parkinson-White syndrome that is otherwise difficult to obtain by conventional ECG analysis.</div></front></TEI><istex><corpusName>elsevier</corpusName><author><json:item><name>Tetsuo Yanagawa MD</name><affiliations><json:string>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</json:string></affiliations></json:item><json:item><name>Makoto Hirai MD</name><affiliations><json:string>Address for correspondence: Dr. Makoto Hirai, Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, 65 Tsurumai, Showaku, Nagoya 466, Japan.</json:string><json:string>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</json:string></affiliations></json:item><json:item><name>Hiroshi Hayashi MD</name><affiliations><json:string>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</json:string></affiliations></json:item><json:item><name>Hiroaki Sano MD</name><affiliations><json:string>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</json:string></affiliations></json:item><json:item><name>Yasushi Tomita MD</name><affiliations><json:string>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</json:string></affiliations></json:item><json:item><name>Yasuya Inden MD</name><affiliations><json:string>Division of Cardiology, Nagoya Daini Red Cross Hospital, Nagoya, Japan</json:string></affiliations></json:item><json:item><name>Hidehiko Saito MD</name><affiliations><json:string>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>Electrophysiology</value></json:item></subject><articleId><json:string>9500094K</json:string></articleId><language><json:string>eng</json:string></language><abstract>Objectives. We investigated the usefulness of QRST values obtained from 12-lead electrocardiograms (ECGs) for identification of repolarization abnormalities before and after radiofrequency ablation in patients with Wolff-Parkinson-White syndrome.Background. Marked T wave abnormalities often appear after ablation and have been attributed to a continuation of repolarization abnormalities present before ablation (cardiac memory). However, to our knowledge repolarization properties before and after ablation have not been assessed quantitatively.Methods. We calculated the ECG QRST values from 53 patients with Wolff-Parkinson-White syndrome and compared these values before, immediately after and 1 day and 1 week after successful ablation in 25 patients.Results. QRST values were abnormally high in lead V1 in 7 of 28 patients with a left-sided accessory pathway and abnormally low in leads III and aVF and high in lead aVL in 12, 9 and 10 of 20 patients, respectively, with a right-sided accessory pathway. Preexisting QRST abnormalities were still present immediately and 1 day after ablation but were usually absent by 1 week after ablation. QRST values before, immediately after and 1 day after ablation were not significantly different in any lead. In 14 patients with ablation of a left-sided accessory pathway, QRST values before, immediately after and 1 day after ablation in lead V1 and immediately after ablation in leads I, aVR and V2 were significantly different from QRST values in those leads 1 week after ablation. In six patients with ablation of a right-sided accessory pathway, QRST values before, immediately after and 1 day after ablation in leads III, aVL and aVF and immediately after ablation in lead II were significantly different from QRST values in those leads 1 week after ablation.Conclusions. Electrocardiographic QRST values may provide useful quantitative information with respect to repolarization properties before and after ablation in patients with Wolff-Parkinson-White syndrome that is otherwise difficult to obtain by conventional ECG analysis.</abstract><qualityIndicators><score>7.99</score><pdfVersion>1.3</pdfVersion><pdfPageSize>648 x 864 pts</pdfPageSize><refBibsNative>true</refBibsNative><keywordCount>1</keywordCount><abstractCharCount>2086</abstractCharCount><pdfWordCount>4990</pdfWordCount><pdfCharCount>30317</pdfCharCount><pdfPageCount>7</pdfPageCount><abstractWordCount>304</abstractWordCount></qualityIndicators><title>QRST time integral values in 12-lead electrocardiograms before and after radiofrequency catheter ablation in patients with Wolff-Parkinson-White syndrome</title><pii><json:string>0735-1097(95)00094-K</json:string></pii><genre><json:string>research-article</json:string></genre><serie><genre></genre><language><json:string>unknown</json:string></language><title>Report of the Japanese Circulation Society Task Force Committee on Criteria for Body Surface Potential Mapping</title></serie><host><volume>25</volume><pii><json:string>S0735-1097(00)X0013-7</json:string></pii><pages><last>1590</last><first>1584</first></pages><issn><json:string>0735-1097</json:string></issn><issue>7</issue><genre><json:string>Journal</json:string></genre><language><json:string>unknown</json:string></language><title>Journal of the American College of Cardiology</title><publicationDate>1995</publicationDate></host><categories><wos><json:string>CARDIAC & CARDIOVASCULAR 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level="a" type="main" xml:lang="en">QRST time integral values in 12-lead electrocardiograms before and after radiofrequency catheter ablation in patients with Wolff-Parkinson-White syndrome</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>ELSEVIER</publisher><availability><p>ELSEVIER</p></availability><date>1995</date></publicationStmt><notesStmt><note>This study was supported in part by grants-in-aid from the National Cardiovascular Center, Osaka, Japan.</note><note type="content">Section title: Clinical study</note></notesStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">QRST time integral values in 12-lead electrocardiograms before and after radiofrequency catheter ablation in patients with Wolff-Parkinson-White syndrome</title><author><persName><forename type="first">Tetsuo</forename><surname>Yanagawa</surname></persName><roleName type="degree">MD</roleName><affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</affiliation></author><author><persName><forename type="first">Makoto</forename><surname>Hirai</surname></persName><roleName type="degree">MD</roleName><affiliation>Address for correspondence: Dr. Makoto Hirai, Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, 65 Tsurumai, Showaku, Nagoya 466, Japan.</affiliation><affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</affiliation></author><author><persName><forename type="first">Hiroshi</forename><surname>Hayashi</surname></persName><roleName type="degree">MD</roleName><affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</affiliation></author><author><persName><forename type="first">Hiroaki</forename><surname>Sano</surname></persName><roleName type="degree">MD</roleName><affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</affiliation></author><author><persName><forename type="first">Yasushi</forename><surname>Tomita</surname></persName><roleName type="degree">MD</roleName><affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</affiliation></author><author><persName><forename type="first">Yasuya</forename><surname>Inden</surname></persName><roleName type="degree">MD</roleName><affiliation>Division of Cardiology, Nagoya Daini Red Cross Hospital, Nagoya, Japan</affiliation></author><author><persName><forename type="first">Hidehiko</forename><surname>Saito</surname></persName><roleName type="degree">MD</roleName><affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</affiliation></author></analytic><monogr><title level="j">Journal of the American College of Cardiology</title><title level="j" type="abbrev">JAC</title><idno type="pISSN">0735-1097</idno><idno type="PII">S0735-1097(00)X0013-7</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1995"></date><biblScope unit="volume">25</biblScope><biblScope unit="issue">7</biblScope><biblScope unit="page" from="1584">1584</biblScope><biblScope unit="page" to="1590">1590</biblScope></imprint></monogr><idno type="istex">AA6BB18159964E59B4CD2A838CE9224FB86897A7</idno><idno type="DOI">10.1016/0735-1097(95)00094-K</idno><idno type="PII">0735-1097(95)00094-K</idno><idno type="ArticleID">9500094K</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>1995</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>Objectives. We investigated the usefulness of QRST values obtained from 12-lead electrocardiograms (ECGs) for identification of repolarization abnormalities before and after radiofrequency ablation in patients with Wolff-Parkinson-White syndrome.Background. Marked T wave abnormalities often appear after ablation and have been attributed to a continuation of repolarization abnormalities present before ablation (cardiac memory). However, to our knowledge repolarization properties before and after ablation have not been assessed quantitatively.Methods. We calculated the ECG QRST values from 53 patients with Wolff-Parkinson-White syndrome and compared these values before, immediately after and 1 day and 1 week after successful ablation in 25 patients.Results. QRST values were abnormally high in lead V1 in 7 of 28 patients with a left-sided accessory pathway and abnormally low in leads III and aVF and high in lead aVL in 12, 9 and 10 of 20 patients, respectively, with a right-sided accessory pathway. Preexisting QRST abnormalities were still present immediately and 1 day after ablation but were usually absent by 1 week after ablation. QRST values before, immediately after and 1 day after ablation were not significantly different in any lead. In 14 patients with ablation of a left-sided accessory pathway, QRST values before, immediately after and 1 day after ablation in lead V1 and immediately after ablation in leads I, aVR and V2 were significantly different from QRST values in those leads 1 week after ablation. In six patients with ablation of a right-sided accessory pathway, QRST values before, immediately after and 1 day after ablation in leads III, aVL and aVF and immediately after ablation in lead II were significantly different from QRST values in those leads 1 week after ablation.Conclusions. Electrocardiographic QRST values may provide useful quantitative information with respect to repolarization properties before and after ablation in patients with Wolff-Parkinson-White syndrome that is otherwise difficult to obtain by conventional ECG analysis.</p></abstract><textClass><keywords scheme="keyword"><list><head>Article category</head><item><term>Electrophysiology</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="1995-02-02">Registration</change><change when="1994-12-09">Modified</change><change when="1995">Published</change></revisionDesc></teiHeader></istex:fulltextTEI></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier doc found" wicri:toSee="Elsevier, no converted or simple article"><istex:xmlDeclaration>version="1.0" encoding="utf-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 5.0.1//EN//XML" URI="art501.dtd" name="istex:docType"></istex:docType><istex:document><article version="5.0" xml:lang="en" docsubtype="fla"><item-info><jid>JAC</jid><aid>9500094K</aid><ce:pii>0735-1097(95)00094-K</ce:pii><ce:doi>10.1016/0735-1097(95)00094-K</ce:doi><ce:copyright type="unknown" year="1995">American College of Cardiology</ce:copyright><ce:doctopics><ce:doctopic><ce:text>Electrophysiology</ce:text></ce:doctopic></ce:doctopics></item-info><head><ce:article-footnote><ce:note-para>This study was supported in part by grants-in-aid from the National Cardiovascular Center, Osaka, Japan.</ce:note-para></ce:article-footnote><ce:dochead><ce:textfn>Clinical study</ce:textfn></ce:dochead><ce:title>QRST time integral values in 12-lead electrocardiograms before and after radiofrequency catheter ablation in patients with Wolff-Parkinson-White syndrome</ce:title><ce:author-group><ce:author><ce:given-name>Tetsuo</ce:given-name><ce:surname>Yanagawa</ce:surname><ce:degrees>MD</ce:degrees><ce:cross-ref refid="aff1"><ce:sup>**</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>Makoto</ce:given-name><ce:surname>Hirai</ce:surname><ce:degrees>MD</ce:degrees><ce:cross-ref refid="cor1"><ce:sup>*</ce:sup></ce:cross-ref><ce:cross-ref refid="aff1"><ce:sup>**</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>Hiroshi</ce:given-name><ce:surname>Hayashi</ce:surname><ce:degrees>MD</ce:degrees><ce:cross-ref refid="aff1"><ce:sup>**</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>Hiroaki</ce:given-name><ce:surname>Sano</ce:surname><ce:degrees>MD</ce:degrees><ce:cross-ref refid="aff1"><ce:sup>**</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>Yasushi</ce:given-name><ce:surname>Tomita</ce:surname><ce:degrees>MD</ce:degrees><ce:cross-ref refid="aff1"><ce:sup>**</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>Yasuya</ce:given-name><ce:surname>Inden</ce:surname><ce:degrees>MD</ce:degrees><ce:cross-ref refid="aff2"><ce:sup>*</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>Hidehiko</ce:given-name><ce:surname>Saito</ce:surname><ce:degrees>MD</ce:degrees><ce:cross-ref refid="aff1"><ce:sup>**</ce:sup></ce:cross-ref></ce:author><ce:affiliation id="aff1"><ce:label>a</ce:label><ce:textfn>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</ce:textfn></ce:affiliation><ce:affiliation id="aff2"><ce:label>b</ce:label><ce:textfn>Division of Cardiology, Nagoya Daini Red Cross Hospital, Nagoya, Japan</ce:textfn></ce:affiliation><ce:correspondence id="cor1"><ce:label>*</ce:label><ce:text><ce:underline>Address for correspondence:</ce:underline> Dr. Makoto Hirai, Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, 65 Tsurumai, Showaku, Nagoya 466, Japan.</ce:text></ce:correspondence></ce:author-group><ce:date-received day="9" month="9" year="1994"></ce:date-received><ce:date-revised day="9" month="12" year="1994"></ce:date-revised><ce:date-accepted day="2" month="2" year="1995"></ce:date-accepted><ce:abstract id="ab1" class="author" xml:lang="en"><ce:section-title>Abstract</ce:section-title><ce:abstract-sec><ce:simple-para><ce:italic>Objectives</ce:italic>. We investigated the usefulness of QRST values obtained from 12-lead electrocardiograms (ECGs) for identification of repolarization abnormalities before and after radiofrequency ablation in patients with Wolff-Parkinson-White syndrome.</ce:simple-para><ce:simple-para><ce:italic>Background</ce:italic>. Marked T wave abnormalities often appear after ablation and have been attributed to a continuation of repolarization abnormalities present before ablation (<ce:italic>cardiac memory</ce:italic>). However, to our knowledge repolarization properties before and after ablation have not been assessed quantitatively.</ce:simple-para><ce:simple-para><ce:italic>Methods</ce:italic>. We calculated the ECG QRST values from 53 patients with Wolff-Parkinson-White syndrome and compared these values before, immediately after and 1 day and 1 week after successful ablation in 25 patients.</ce:simple-para><ce:simple-para><ce:italic>Results</ce:italic>. QRST values were abnormally high in lead V<ce:inf>1</ce:inf> in 7 of 28 patients with a left-sided accessory pathway and abnormally low in leads III and aVF and high in lead aVL in 12, 9 and 10 of 20 patients, respectively, with a right-sided accessory pathway. Preexisting QRST abnormalities were still present immediately and 1 day after ablation but were usually absent by 1 week after ablation. QRST values before, immediately after and 1 day after ablation were not significantly different in any lead. In 14 patients with ablation of a left-sided accessory pathway, QRST values before, immediately after and 1 day after ablation in lead V<ce:inf>1</ce:inf> and immediately after ablation in leads I, aVR and V<ce:inf>2</ce:inf> were significantly different from QRST values in those leads 1 week after ablation. In six patients with ablation of a right-sided accessory pathway, QRST values before, immediately after and 1 day after ablation in leads III, aVL and aVF and immediately after ablation in lead II were significantly different from QRST values in those leads 1 week after ablation.</ce:simple-para><ce:simple-para><ce:italic>Conclusions</ce:italic>. Electrocardiographic QRST values may provide useful quantitative information with respect to repolarization properties before and after ablation in patients with Wolff-Parkinson-White syndrome that is otherwise difficult to obtain by conventional ECG analysis.</ce:simple-para></ce:abstract-sec></ce:abstract></head><tail><ce:bibliography><ce:section-title>References</ce:section-title><ce:bibliography-sec><ce:bib-reference 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First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Makoto</namePart><namePart type="family">Hirai</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>Address for correspondence: Dr. Makoto Hirai, Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, 65 Tsurumai, Showaku, Nagoya 466, Japan.</affiliation><affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Hiroshi</namePart><namePart type="family">Hayashi</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Hiroaki</namePart><namePart type="family">Sano</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Yasushi</namePart><namePart type="family">Tomita</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Yasuya</namePart><namePart type="family">Inden</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>Division of Cardiology, Nagoya Daini Red Cross Hospital, Nagoya, Japan</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Hidehiko</namePart><namePart type="family">Saito</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya, Japan</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="Full-length article"></genre><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">1995</dateIssued><dateValid encoding="w3cdtf">1995-02-02</dateValid><dateModified encoding="w3cdtf">1994-12-09</dateModified><copyrightDate encoding="w3cdtf">1995</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">Objectives. We investigated the usefulness of QRST values obtained from 12-lead electrocardiograms (ECGs) for identification of repolarization abnormalities before and after radiofrequency ablation in patients with Wolff-Parkinson-White syndrome.Background. Marked T wave abnormalities often appear after ablation and have been attributed to a continuation of repolarization abnormalities present before ablation (cardiac memory). However, to our knowledge repolarization properties before and after ablation have not been assessed quantitatively.Methods. We calculated the ECG QRST values from 53 patients with Wolff-Parkinson-White syndrome and compared these values before, immediately after and 1 day and 1 week after successful ablation in 25 patients.Results. QRST values were abnormally high in lead V1 in 7 of 28 patients with a left-sided accessory pathway and abnormally low in leads III and aVF and high in lead aVL in 12, 9 and 10 of 20 patients, respectively, with a right-sided accessory pathway. Preexisting QRST abnormalities were still present immediately and 1 day after ablation but were usually absent by 1 week after ablation. QRST values before, immediately after and 1 day after ablation were not significantly different in any lead. In 14 patients with ablation of a left-sided accessory pathway, QRST values before, immediately after and 1 day after ablation in lead V1 and immediately after ablation in leads I, aVR and V2 were significantly different from QRST values in those leads 1 week after ablation. In six patients with ablation of a right-sided accessory pathway, QRST values before, immediately after and 1 day after ablation in leads III, aVL and aVF and immediately after ablation in lead II were significantly different from QRST values in those leads 1 week after ablation.Conclusions. Electrocardiographic QRST values may provide useful quantitative information with respect to repolarization properties before and after ablation in patients with Wolff-Parkinson-White syndrome that is otherwise difficult to obtain by conventional ECG analysis.</abstract><note>This study was supported in part by grants-in-aid from the National Cardiovascular Center, Osaka, Japan.</note><note type="content">Section title: Clinical study</note><subject><genre>Article category</genre><topic>Electrophysiology</topic></subject><relatedItem type="host"><titleInfo><title>Journal of the American College of Cardiology</title></titleInfo><titleInfo type="abbreviated"><title>JAC</title></titleInfo><genre type="Journal">journal</genre><originInfo><dateIssued encoding="w3cdtf">199506</dateIssued></originInfo><identifier type="ISSN">0735-1097</identifier><identifier type="PII">S0735-1097(00)X0013-7</identifier><part><detail type="volume"><number>25</number><caption>vol.</caption></detail><detail type="issue"><number>7</number><caption>no.</caption></detail><extent unit="issue pages"><start>1479</start><end>1762</end></extent><extent unit="pages"><start>1584</start><end>1590</end></extent></part></relatedItem><identifier type="istex">AA6BB18159964E59B4CD2A838CE9224FB86897A7</identifier><identifier type="DOI">10.1016/0735-1097(95)00094-K</identifier><identifier type="PII">0735-1097(95)00094-K</identifier><identifier type="ArticleID">9500094K</identifier><accessCondition type="use and reproduction" contentType="">© 1995American College of Cardiology</accessCondition><recordInfo><recordContentSource>ELSEVIER</recordContentSource><recordOrigin>American College of Cardiology, ©1995</recordOrigin></recordInfo></mods></metadata><enrichments><istex:catWosTEI uri="https://api.istex.fr/document/AA6BB18159964E59B4CD2A838CE9224FB86897A7/enrichments/catWos"><teiHeader><profileDesc><textClass><classCode scheme="WOS">CARDIAC & CARDIOVASCULAR SYSTEMS</classCode></textClass></profileDesc></teiHeader></istex:catWosTEI></enrichments></istex></record>Pour manipuler ce document sous Unix (Dilib)
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