PMID: 9535498Apr 16, 1998Paper

QT prolongation and dispersion in myocardial ischemia and infarction

Journal of Electrocardiology
G TomassoniA Natale

Abstract

The ability of QT interval dispersion to predict the occurrence of ventricular fibrillation (VF) after acute myocardial infarction treated with thrombolytic therapy is controversial. Continuous 12-lead electrocardiographic (ECG) monitoring for 48 hours or longer provides an opportunity to detect transient changes of QT dispersion and correlate such changes with the clinical outcome. In 543 consecutive patients enrolled in the TAMI-9 and GUSTO I studies, serial changes of the QT dispersion were analyzed in an attempt to predict the occurrence of VF with a system that monitored continuously the 12-lead ECG and stored it at least every 20 minutes. Measurements of QT dispersion were made at a median time of 2.37 hours after the onset of chest pain and at 24- and 48-hour intervals. A total of 43 patients experienced VF during the acute phase of myocardial infarction; of these patients, 33 (77%) had anterior infarcts. However, despite the higher preponderance of anterior myocardial infarcts in the VF group, patients with anterior infarcts did not have longer QT dispersion than those with other infarct locations. Similarly, no significant differences in the QT dispersion were observed at any time between the group with VF and that wit...Continue Reading

References

Jun 1, 1990·British Heart Journal·C P DayR W Campbell
Jan 1, 1988·The American Journal of Cardiology·J C CowanR W Campbell
Apr 15, 1995·Lancet·J M GlancyD P de Bono
Aug 1, 1994·Journal of Cardiovascular Electrophysiology·D J StattersA J Camm
Jan 1, 1995·British Heart Journal·P D HighamR W Campbell
May 1, 1994·Pacing and Clinical Electrophysiology : PACE·J KautznerM Malik
Jan 1, 1996·Journal of the American College of Cardiology·J MolnarJ E Rosenthal
Dec 1, 1995·British Heart Journal·J M GlancyD P de Bono
Nov 1, 1996·Pacing and Clinical Electrophysiology : PACE·A MichelucciG F Gensini
Nov 15, 1996·International Journal of Cardiology·J M GlancyD P de Bono
Feb 1, 1997·Lancet·S C SportonS M Hardman
Jan 1, 1964·Circulation Research·J HAN, G K MOE
Sep 1, 1952·Circulation·E LEPESCHKIN, B SURAWICZ

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Citations

Aug 24, 2013·Medical Science Monitor : International Medical Journal of Experimental and Clinical Research·Ercan ErdoganOmer Göktekin
Oct 30, 2008·Hypertension Research : Official Journal of the Japanese Society of Hypertension·Daisuke MaebuchiYutaka Kiyohara
Jan 15, 2000·Journal of Cardiovascular Electrophysiology·B B PunskeB Taccardi
Feb 25, 2000·Journal of Electrocardiology·R L LuxB Taccardi
Jun 28, 2000·Progress in Cardiovascular Diseases·L Carnendran, J S Steinberg
Feb 17, 2015·Diabetic Medicine : a Journal of the British Diabetic Association·Y HashimotoM Fukui
Oct 16, 2004·Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·Carlos Alberto PastoreJosé Antonio Franchini Ramires
Jun 15, 2011·Tropical Medicine & International Health : TM & IH·Roop KumariLakhbir Singh Chauhan
Jul 25, 2003·Pacing and Clinical Electrophysiology : PACE·Peter Van LeeuwenDietrich Grönemeyer

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