摘要: QRS duration significantly affects QT measurement, even within the normal range of QRS. Baseline QRS of 100 ms permits less slack than QRS of 70 ms before showing the QT effect of QT-prolonging influences, strengthening the case for substituting JT for QT interval....
Daytime mean HR gave a mean value of 93 ± 10 (range 71148), while during night hours it was 74 ± 11 (range 5498). The minimum QT interval averaged 261 ± 10 ms for HR> 120 and the maximum 389 ± 9 ms for HR ¤ 60; the corresponding mean value of QTc (i.e., QT corrected...
3.2 When the interval between two sessions is not sufficient to enable a representative appointed by the Member to return conveniently to his normal place of residence he may receive, at his request, instead of the payment of the round trip to his place of residence, a daily subsistence allowa...
with heart rates in the 60–90 beats/min range, most formu- lae provide almost equivalent results for the diagnosis of QT prolongation. Even if the rate dependence of the QT interval is probably best described by an exponential relation, in the normal heart rate range the QT–RRrelation is...
Goldenberg, I, Moss, AJ (2006) QT interval: how to measure it and what is “normal”. J Cardiovasc Electrophysiol 17: pp. 333-336Goldenberg I, Moss AJ, Zareba W. QT interval: how to measure it and what is “normal”. J Cardiovasc Electrophysiol. 2006;17(3):333–6....
A caveat: The QT interval is hard to measure Measuring the QT interval is hard enough when it is normal, and it is almost impossible to come up with a workable number in the face of common disease-associated ECG changes such as diffuse ST-segment changes, inverted T-waves, small or ...
On a normal ECG, you’ve got the P, Q, R, S, and T waves. The QT interval spans from the start of the Q to the end of the T wave. Long QT syndrome, or LQTS, is when somebody’s QT interval is longer than normal, which should typically be less than half of a cardiac cycle...
normalQTinterval)-Brugada综合征(短于正常的QT间期)是英文Brugada syndrome (shorter-than的中文翻译。该病是一种基因病、遗传病。佳学基因通过基因解码找到了导致这一疾病发生的基因。可以通过基因检测阻止normalQTinterval)-Brugada综合征(短于正常的QT间期)在后代或者二胎中的出现。根据《人的基因序列变化与人体疾病...
在Qt类库中,所有界面组件类的字节或间接父类都是QWidget. QWidget的父类是QObject与QPaintDevice.所以QWidget是多重继承的类. QObject支持元对象系统,其信号与槽机制为编程中对象间通信提供了极大便利. QPaintDevice是能使用QPainter类在绘图设备上绘图的类. ...
The contributions of the intrinsic effect of heart rate and factors other than heart rate, to exercise-induced QT interval shortening were assessed by stud... FANANAPAZIR L,BENNETT D. H,FARAGHER E. B - 《European Heart Journal》 被引量: 152发表: 1983年 Relation between QT interval and he...