2024年10月8日 · Polymorphic ventricular tachycardia (PVT) is a form of ventricular tachycardia in which there are multiple ventricular foci with the resultant QRS complex varying in amplitude, …

2012年6月4日 · Torsade de Pointes (TdP) is a form of polymorphic ventricular tachycardia associated with a long QT interval on the resting ECG. Torsade de Pointes is typically initiated …

Torsades de pointes, torsade de pointes or torsades des pointes (TdP; also called torsades) (/ t ɔːr ˌ s ɑː d d ə ˈ p w æ̃ t /, [2] French: [tɔʁsad də pwɛ̃t̪], translated as "twisting of peaks") is a …

2023年8月8日 · This lowers the likelihood of an R-on-T phenomenon that can lead to TdP. Isoproterenol can be given as an IV push of 10 mcg to 20mcg or an infusion titrated to …

2024年11月14日 · The diagnosis relies heavily on an ECG, which will show the characteristic twisting pattern of QRS complexes. In some instances, TdP may be preceded by a series of …

TdP的典型ECG特征是：1） QRS波群 的形态和幅度随着等电位线的波动而来回扭动。2）室速常由长间歇后舒张早期 室性早搏 （R on T）诱发。3）TdP发作通常有温醒现象。即室速发作初 …

The initial ECG above shows polymorphic ventricular tachycardia (PVT). Although commonly referred to as torsades de pointes (TdP), not all PVT is TdP. A diagnosis of TdP is made by …

Torsades de Pointes. Prolonged QT Interval. QT C = 0.58s (QT C > 440ms); First described in 1966 by the French physician François Dessertenne; It is the most common polymorphic VT; …

2025年3月22日 · 1 Introduction. Drug sponsors strive to develop safe and effective therapies. An undesirable property of a new drug in development is the potential to delay ventricular …

Regions with prominent APD prolongation look an island. (B) A ECG strip of TdP (top) and phase maps for the initiation (bottom) in electrical storm rabbit heart #15. Activation pattern in each of …