Ventricular tachycardia (VT) is a severe arrhythmia that often impairs heart function considerably and can be a precursor of ventricular fibrillation. Herein, the impact of VT on hemodynamics and prognosis is d
However, the VT may not show features characteristic of the same bundle branch block (BBB)-like morphology in other leads.1,3 Classification According to Tachycardia Mechanism Focal VT has a point source of earliest ventricular activation with a centrifugal spread of activation from that site. The...
sustained ventricular tachycardia tachycardia that lasts more than 30 seconds and leads to hemodynamic collapse. ventricular tachycardia an abnormally rapid ventricular rhythm with aberrant ventricular excitation, characterized by at least three consecutive ventricular complexes of more than 100 beats per minute...
There are many causes of ventricular tachycardia (Table 16.1). However, ventricular tachycardia usually occurs in patients with underlying structural heart disease. This can be acquired or inherited. Myocardial disease and scarring cause abnormal cardiac impulse formation and propagation, which can lead ...
1. Do you see concordance present in the precordial leads (V1-V6)? Sometimes explained as the absence of a “RS complex,” concordance simply means “all up” or “all down.” A simple way to think of this would be to ask the question: Are all QRS complexes completely ...
Related to Ventricular tachycardia:ventricular fibrillation,supraventricular tachycardia,Premature ventricular contractions ven·tric·u·lar (vĕn-trĭk′yə-lər) adj. Of or relating to a ventricle or ventriculus. American Heritage® Dictionary of the English Language, Fifth Edition. Copyright ...
In the normal cardiac cycle, depolarization of the cell membrane leads to opening of voltage-gate calcium channels and calcium influx into the cell. While the amount of inflowing Ca2+ is not enough to induce muscle contraction, it is important for the release of larger...
ventricular tachycardia; prenatal diagnosis; amiodarone; pregnancy Abstract Fetal cardiac arrhythmias are one of the causes of intra-uterine congestive heart failure and non-immune hydrops fetalis leading to fetal death. As ventricular tachycardia (VT) is rarely diagnosed in utero, it leads to emergenc...
Ventricular tachycardia causes your heart to beat too fast. Learn more about the symptoms, causes, risk factors, diagnosis, treatment, and prevention.
The aforementioned data led us to investigate whether a naturally occurring molecule can inhibit LV remodelling and reduce the susceptibility to ventricular tachycardia (VT) during chronic pressure overload by blocking TLR4 signalling. We speculated that a favourable candidate molecule might be myeloid dif...