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Clin Cardiol. 1997 Jun;20(6):533-5. doi: 10.1002/clc.4960200605.
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QT dispersion at rest and during adenosine stress myocardial perfusion imaging correlation with Myocardial Jeopardy Score.静息及腺苷负荷心肌灌注成像时的QT离散度与心肌危险评分的相关性
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The association of QT dispersion and QT dispersion ratio with extent and severity of coronary artery disease.QT离散度及QT离散度比值与冠状动脉疾病范围及严重程度的关联。
Ann Noninvasive Electrocardiol. 2006 Jan;11(1):43-51. doi: 10.1111/j.1542-474X.2006.00081.x.

本文引用的文献

1
QT dispersion and components of the QT interval in ischaemia and infarction.缺血和梗死时的QT离散度及QT间期各成分
Br Heart J. 1995 Jan;73(1):32-6. doi: 10.1136/hrt.73.1.32.
2
Prolonged QT interval at onset of acute myocardial infarction in predicting early phase ventricular tachycardia.急性心肌梗死发作时QT间期延长对早期室性心动过速的预测作用
Am Heart J. 1981 Jul;102(1):16-24. doi: 10.1016/0002-8703(81)90407-5.
3
Arrhythmias in the first hours of acute myocardial infarction.
Prog Cardiovasc Dis. 1981 Jan-Feb;23(4):265-78. doi: 10.1016/0033-0620(81)90016-5.
4
QT interval variability on the body surface.体表QT间期变异性
J Electrocardiol. 1984 Apr;17(2):179-88. doi: 10.1016/s0022-0736(84)81093-6.
5
Relationship between serum CK-MB-estimated acute myocardial infarct size and clinical complications.
Acta Med Scand. 1984;215(4):355-62. doi: 10.1111/j.0954-6820.1984.tb05018.x.
6
Hypokalaemia and ventricular fibrillation in acute myocardial infarction.急性心肌梗死中的低钾血症与心室颤动
Br Heart J. 1983 Dec;50(6):525-9. doi: 10.1136/hrt.50.6.525.
7
Importance of lead selection in QT interval measurement.QT间期测量中导联选择的重要性。
Am J Cardiol. 1988 Jan 1;61(1):83-7. doi: 10.1016/0002-9149(88)91309-4.
8
[Significance of QT interval as a premonitory sign of severe ventricular arrhythmia in the early phase of myocardial infarct].
G Ital Cardiol. 1988 Apr;18(4):290-5.
9
Electrophysiological mechanisms of ventricular arrhythmias resulting from myocardial ischemia and infarction.心肌缺血和梗死所致室性心律失常的电生理机制
Physiol Rev. 1989 Oct;69(4):1049-169. doi: 10.1152/physrev.1989.69.4.1049.
10
Mechanisms underlying the development of ventricular fibrillation during early myocardial ischemia.早期心肌缺血期间心室颤动发生的潜在机制。
Circ Res. 1990 Mar;66(3):672-95. doi: 10.1161/01.res.66.3.672.

不稳定型心绞痛患者的QT离散度比值（一个新的危险因素？）

QT dispersion ratio in patients with unstable angina pectoris (a new risk factor?).

作者信息

Cin V G, Celik M, Ulucan S

机构信息

Selçuk University, School of Medicine, Cardiac Department, Konya, Turkey.

出版信息

Clin Cardiol. 1997 Jun;20(6):533-5. doi: 10.1002/clc.4960200605.

DOI:10.1002/clc.4960200605
PMID:9181263
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6655950/
Abstract

BACKGROUND

QT dispersion has been shown to be associated with fatal arrhythmias and sudden death in coronary artery disease. A recent study indicated that marked QT dispersion in electrocardiograms (ECGs) obtained during acute ischemia demonstrated a significant correlation with ventricular fibrillation.

HYPOTHESIS

This study investigated the ECG parameters for repolarization (QT dispersion, corrected QT, corrected QT dispersion, and QT dispersion ratio) and their interrelation with acute ischemia.

METHODS

QT parameters as well as a newly developed repolarization index, QT dispersion ratio [(QT dispersion/RR interval) x 100] were calculated digitally during rest and ischemia in 32 patients with coronary artery disease (rest angina, Braunwald class III). Results were correlated with clinical consequences, mainly arrhythmias, within a follow-up period of 5 +/- 2 days.

RESULTS

While most patients had an increase in all four parameters, only the QT dispersion ratio showed a significant difference when correlated with ventricular arrhythmias (p < 0.001, F ratio = 38).

CONCLUSION

QT dispersion ratio appears to be a new and promising parameter in predicting ventricular arrhythmias in patients with acute ischemia.

摘要

背景

QT离散度已被证明与冠状动脉疾病中的致命性心律失常和猝死相关。最近一项研究表明，急性缺血期间获得的心电图（ECG）中明显的QT离散度与心室颤动显著相关。

假设

本研究调查了复极化的心电图参数（QT离散度、校正QT、校正QT离散度和QT离散度比值）及其与急性缺血的相互关系。

方法

对32例冠状动脉疾病（静息性心绞痛，Braunwald III级）患者在静息和缺血期间数字化计算QT参数以及新开发的复极化指数QT离散度比值[（QT离散度/RR间期）×100]。结果在5±2天的随访期内与临床后果（主要是心律失常）相关。

结果

虽然大多数患者的所有四个参数均增加，但只有QT离散度比值与室性心律失常相关时显示出显著差异（p<0.001，F值=38）。

结论

QT离散度比值似乎是预测急性缺血患者室性心律失常的一个新的且有前景的参数。