Relationship between QRS duration and repolarization abnormalities in patients with wolff-parkinson-white syndrome
Identifieur interne : 002142 ( Main/Exploration ); précédent : 002141; suivant : 002143Relationship between QRS duration and repolarization abnormalities in patients with wolff-parkinson-white syndrome
Auteurs : Fumi Inaba-Sato [Japon] ; Makoto Hirai [Japon] ; Hiroshi Hayashi [Japon] ; Yukihiko Yoshida [Japon] ; Tetsuo Yanagawa [Japon] ; Yasushi Tomita [Japon] ; Kazuki Iwata [Japon] ; Kazunari Abe [Japon] ; Masayuki Terazawa [Japon] ; Makoto Akahoshi [Japon] ; Mikio Sugino [Japon] ; Hidehiko Saito [Japon]Source :
- Journal of Electrocardiology [ 0022-0736 ] ; 1996.
English descriptors
- KwdEn :
Abstract
Marked T wave abnormalities in 12-lead electrocardiograms often appear after radiofrequency ablation in patients with Wolff-Parkinson-White (WPW) syndrome. Durations of the QRS complex before ablation have been reported to be significantly greater in patients with repolarization abnormalities after ablation than in those with normal repolarization. However, there has been no report concerning the relationship between QRS duration and repolarization abnormalities before ablation. It has been reported that QRST isointegral maps are dependent on local cellular repolarization properties but largely independent of activation sequence, and that they provide quantitative information about repolarization abnormalities. Isointegral maps were constructed from data recorded in 34 patients with WPW syndrome and QRS durations of 0.1 second or longer (21 patients with left-sided accessory pathways and 13 with right-sided pathways) in order to investigate the relationship between QRS duration and abnormalities in repolarization properties during preexcitation. Body surface ECGs were recorded with an 87-lead system at a sampling interval of 1 ms. The QRST values (mean ± 2SD) from 607 normal individuals were taken to represent the normal range. The area with abnormally low QRST values was designated as the −2SD area and the sum of the QRST values (ΣQRST) in this area was calculated. The QRS duration was found to be significantly related to ΣQRST. These results demonstrate that the patients with WPW syndrome had abnormalities in local repolarization properties that were significantly related to QRS duration during preexcitation. The degree of preexcitation may be important in producing these abnormalities in patients with manifest WPW syndrome. This may result in T wave abnormalities after ablation of the accessory pathway attributable to cardiac memory.
Url:
DOI: 10.1016/S0022-0736(96)80094-X
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sort="Tomita, Yasushi" uniqKey="Tomita Y" first="Yasushi" last="Tomita">Yasushi Tomita</name></author><author><name sortKey="Iwata, Kazuki" sort="Iwata, Kazuki" uniqKey="Iwata K" first="Kazuki" last="Iwata">Kazuki Iwata</name></author><author><name sortKey="Abe, Kazunari" sort="Abe, Kazunari" uniqKey="Abe K" first="Kazunari" last="Abe">Kazunari Abe</name></author><author><name sortKey="Terazawa, Masayuki" sort="Terazawa, Masayuki" uniqKey="Terazawa M" first="Masayuki" last="Terazawa">Masayuki Terazawa</name></author><author><name sortKey="Akahoshi, Makoto" sort="Akahoshi, Makoto" uniqKey="Akahoshi M" first="Makoto" last="Akahoshi">Makoto Akahoshi</name></author><author><name sortKey="Sugino, Mikio" sort="Sugino, Mikio" uniqKey="Sugino M" first="Mikio" last="Sugino">Mikio Sugino</name></author><author><name sortKey="Saito, Hidehiko" sort="Saito, Hidehiko" uniqKey="Saito H" first="Hidehiko" last="Saito">Hidehiko Saito</name></author></titleStmt><publicationStmt><idno 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uniqKey="Yoshida Y" first="Yukihiko" last="Yoshida">Yukihiko Yoshida</name><affiliation wicri:level="1"><country xml:lang="fr">Japon</country><wicri:regionArea>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya</wicri:regionArea><wicri:noRegion>Nagoya</wicri:noRegion></affiliation></author><author><name sortKey="Yanagawa, Tetsuo" sort="Yanagawa, Tetsuo" uniqKey="Yanagawa T" first="Tetsuo" last="Yanagawa">Tetsuo Yanagawa</name><affiliation wicri:level="1"><country xml:lang="fr">Japon</country><wicri:regionArea>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya</wicri:regionArea><wicri:noRegion>Nagoya</wicri:noRegion></affiliation></author><author><name sortKey="Tomita, Yasushi" sort="Tomita, Yasushi" uniqKey="Tomita Y" first="Yasushi" last="Tomita">Yasushi Tomita</name><affiliation wicri:level="1"><country xml:lang="fr">Japon</country><wicri:regionArea>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya</wicri:regionArea><wicri:noRegion>Nagoya</wicri:noRegion></affiliation></author><author><name sortKey="Iwata, Kazuki" sort="Iwata, Kazuki" uniqKey="Iwata K" first="Kazuki" last="Iwata">Kazuki Iwata</name><affiliation wicri:level="1"><country xml:lang="fr">Japon</country><wicri:regionArea>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya</wicri:regionArea><wicri:noRegion>Nagoya</wicri:noRegion></affiliation></author><author><name sortKey="Abe, Kazunari" sort="Abe, Kazunari" uniqKey="Abe K" first="Kazunari" last="Abe">Kazunari Abe</name><affiliation wicri:level="1"><country xml:lang="fr">Japon</country><wicri:regionArea>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya</wicri:regionArea><wicri:noRegion>Nagoya</wicri:noRegion></affiliation></author><author><name sortKey="Terazawa, Masayuki" sort="Terazawa, Masayuki" uniqKey="Terazawa M" first="Masayuki" last="Terazawa">Masayuki Terazawa</name><affiliation wicri:level="1"><country xml:lang="fr">Japon</country><wicri:regionArea>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya</wicri:regionArea><wicri:noRegion>Nagoya</wicri:noRegion></affiliation></author><author><name sortKey="Akahoshi, Makoto" sort="Akahoshi, Makoto" uniqKey="Akahoshi M" first="Makoto" last="Akahoshi">Makoto Akahoshi</name><affiliation wicri:level="1"><country xml:lang="fr">Japon</country><wicri:regionArea>From the Division of Cardiology, First Department of Internal Medicine, University of Nagoya School of Medicine, Nagoya</wicri:regionArea><wicri:noRegion>Nagoya</wicri:noRegion></affiliation></author><author><name sortKey="Sugino, Mikio" sort="Sugino, 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type="published" when="1996">1996</date><biblScope unit="volume">29</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="301">301</biblScope><biblScope unit="page" to="308">308</biblScope></imprint><idno type="ISSN">0022-0736</idno></series><idno type="istex">B3595E6F7C7BED01507A2CD42E0883156F3154B9</idno><idno type="DOI">10.1016/S0022-0736(96)80094-X</idno><idno type="PII">S0022-0736(96)80094-X</idno><idno type="ArticleID">9680094X</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0022-0736</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>QRST value</term><term>Wolff-Parkinson-White syndrome</term><term>cardiac memory</term><term>isointegral maps</term><term>repolarization</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Marked T wave abnormalities in 12-lead electrocardiograms often appear after radiofrequency ablation in patients with Wolff-Parkinson-White (WPW) syndrome. Durations of the QRS complex before ablation have been reported to be significantly greater in patients with repolarization abnormalities after ablation than in those with normal repolarization. However, there has been no report concerning the relationship between QRS duration and repolarization abnormalities before ablation. It has been reported that QRST isointegral maps are dependent on local cellular repolarization properties but largely independent of activation sequence, and that they provide quantitative information about repolarization abnormalities. Isointegral maps were constructed from data recorded in 34 patients with WPW syndrome and QRS durations of 0.1 second or longer (21 patients with left-sided accessory pathways and 13 with right-sided pathways) in order to investigate the relationship between QRS duration and abnormalities in repolarization properties during preexcitation. Body surface ECGs were recorded with an 87-lead system at a sampling interval of 1 ms. The QRST values (mean ± 2SD) from 607 normal individuals were taken to represent the normal range. The area with abnormally low QRST values was designated as the −2SD area and the sum of the QRST values (ΣQRST) in this area was calculated. The QRS duration was found to be significantly related to ΣQRST. These results demonstrate that the patients with WPW syndrome had abnormalities in local repolarization properties that were significantly related to QRS duration during preexcitation. The degree of preexcitation may be important in producing these abnormalities in patients with manifest WPW syndrome. This may result in T wave abnormalities after ablation of the accessory pathway attributable to cardiac memory.</div></front></TEI><affiliations><list><country><li>Japon</li></country></list><tree><country name="Japon"><noRegion><name sortKey="Inaba Sato, Fumi" sort="Inaba Sato, Fumi" uniqKey="Inaba Sato F" first="Fumi" last="Inaba-Sato">Fumi Inaba-Sato</name></noRegion><name sortKey="Abe, Kazunari" sort="Abe, Kazunari" uniqKey="Abe K" first="Kazunari" last="Abe">Kazunari Abe</name><name sortKey="Akahoshi, Makoto" sort="Akahoshi, Makoto" uniqKey="Akahoshi M" first="Makoto" last="Akahoshi">Makoto Akahoshi</name><name sortKey="Hayashi, Hiroshi" sort="Hayashi, Hiroshi" uniqKey="Hayashi H" first="Hiroshi" last="Hayashi">Hiroshi Hayashi</name><name sortKey="Hirai, Makoto" sort="Hirai, Makoto" uniqKey="Hirai M" first="Makoto" last="Hirai">Makoto Hirai</name><name sortKey="Iwata, Kazuki" sort="Iwata, Kazuki" uniqKey="Iwata K" first="Kazuki" last="Iwata">Kazuki Iwata</name><name sortKey="Saito, Hidehiko" sort="Saito, Hidehiko" uniqKey="Saito H" first="Hidehiko" last="Saito">Hidehiko Saito</name><name sortKey="Sugino, Mikio" sort="Sugino, Mikio" uniqKey="Sugino M" first="Mikio" last="Sugino">Mikio Sugino</name><name sortKey="Terazawa, Masayuki" sort="Terazawa, Masayuki" uniqKey="Terazawa M" first="Masayuki" last="Terazawa">Masayuki Terazawa</name><name sortKey="Tomita, Yasushi" sort="Tomita, Yasushi" uniqKey="Tomita Y" first="Yasushi" last="Tomita">Yasushi Tomita</name><name sortKey="Yanagawa, Tetsuo" sort="Yanagawa, Tetsuo" uniqKey="Yanagawa T" first="Tetsuo" last="Yanagawa">Tetsuo Yanagawa</name><name sortKey="Yoshida, Yukihiko" sort="Yoshida, Yukihiko" uniqKey="Yoshida Y" first="Yukihiko" last="Yoshida">Yukihiko Yoshida</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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