‘Thorough QT/QTc Study’ 4 Timing of ECGs in the ‘Thorough QT/QTc Study’ 5 Interpretation of the ‘Thorough QT/QTc Study’ 5 Alternative Strategies to Assess QT/QTc Interval Effects 5 Clinical Trial Evaluation After the ‘Thorough QT/QTc Study’ 5 Clinical Development When the ‘Thorough ...
邸成业,王群,吴岩熹, 等. 伊伐布雷定对慢性心力衰竭患者QT间期和心率的影响[J]. 实用心电学杂志,2023,32(6):389-394.DOI:10.13308/j.issn.2095-9354.2023.06.002. DI Chengye, WANG Qun, WU Yanxi,et al.Effect of ivabradine on QT interval and heart rate in patients with chronic heart failure[J]....
1) Rate-corrected Q-T interval 校正QT间期时间 2) Corrected QT interval 校正QT间期 1. ConclusionsCorrected QT intervalis prolongation in patient. 目的:比较Shy-Drager综合征(SDS)患者的校正QT间期与正常人间的差异,并探讨其意义。 更多例句>>
Long QT syndrome, or LQTS, is when somebody’sQT interval is longer than normal, which should typically be less than half of a cardiac cycle. 延长的话,你懂的,正常的一般小于半个心动周期 In fact, for a heart rate of 60 beats per minute, the QT interval’s generally consideredto be abnor...
We evaluated atrioventricular conduction time (PR), heart rate (HR), and QT interval patterns defining the range of normality of these electrocardiographic parameters. The PR interval ranged from 154± 10 ms (mean±SD) for HR¤60 to 102±12 ms for HR 120 (range 85180). The absolute mean ...
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....
The duration of the QT interval on the surface electrocardiogram represents the time required for all ventricular depolarization and repolarization processes to occur. Among the many physiologic and pathologic factors that contribute to the QT interval, heart rate plays a major role. Several approaches ...
Several studies investigated the human heart rate (HR)-QT interval relationship using different formulae, but in clinical use the necessity of a simple means of correction is apparent. We assessed the resting supine HR-QT relation in healthy nonhospitalized subjects (age range 20-60 years, 494 ...
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...
It delineates the nature of the algebraic dependence of QT as a function of R-R for the normal heart operating in the physiologic range that is consistent with basic physical principles and requires that the duration of diastole (TQ interval) as a function of HR be given by TQ = R-R ...