Qt dispersion in children with ventricular arrhythmia and a structurally normal heart.
In adults, increased QT dispersion has been shown to predict arrhythmic risk as well as risk of sudden death in several clinical settings. It is not known whether or not QT dispersion is increased in children with idiopathic ventricular arrhythmia. We studied three groups of children: (1) 20 patient...
| Publicado en: | Pacing & Clinical Electrophysiology Vol. 22; no. 2; pp. 335 - 339 |
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| Autores principales: | , , , |
| Formato: | research Journal Article |
| Publicado: |
Wiley-Blackwell
Feb1999
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105716792&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105716792 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01478389 4F8 jtl: Pacing & Clinical Electrophysiology issn: 01478389 maglogo: Y pubinfo: dt: Feb1999 vid: 22 iid: 2 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 105716792 2009407678 10.1111/j.1540-8159.1999.tb00447.x NLM10087549 105716792 ppf: 335 ppct: 4 formats: fmt: @attributes: type: P tig: atl: Qt dispersion in children with ventricular arrhythmia and a structurally normal heart. aug: au: Waller BR 3rd Balaji S Ye X Gillette PC sug: subj: Electrocardiography Premature Ventricular Contractions Diagnosis Tachycardia, Ventricular Diagnosis Case Control Studies Child Female Male Premature Ventricular Contractions Epidemiology Risk Factors Tachycardia, Ventricular Epidemiology Human Child: 6-12 years Female Male ab: In adults, increased QT dispersion has been shown to predict arrhythmic risk as well as risk of sudden death in several clinical settings. It is not known whether or not QT dispersion is increased in children with idiopathic ventricular arrhythmia. We studied three groups of children: (1) 20 patients with idiopathic VT (aged 3-18 years; mean 11.2 years); (2) 30 patients with benign PVCs (aged 1-20 years; mean 10.5 years); and (3) 30 control subjects (aged 4-17 years; mean 12 years). Standard ECGs were reviewed and the dispersion of both QT and JT intervals was compared. No patient bad structural heart disease or long QT syndrome. The QT and QTc dispersion (QT[Delta], QTc[Delta]) among the three groups did not differ: QTc[Delta] of the VT group was 70 ms ± 30 ms, QTc[Delta] of PVC patients was 60 ms ± 30 ms, and the QTc[Delta] of the control group was 65 ms ± 30 ms. The JTc[Delta] among the three groups did not differ as well; JTc[Delta] of the VT group was 70 ms ± 30 ms, the JTc[Delta] of the PVC group was 60 msec ± 25 msec, and the JTc[Delta] of the control group was 70 ms ± 30 ms. We conclude that QT and JT dispersion are not significantly altered in children with idiopathic VT or benign PVCs when compared to control subjects. QT dispersion is not a reliable marker for arrhythmic risk in children with idiopathic ventricular arrhythmias and structurally normal hearts. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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