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Ventricular tachycardia (V-tach or VT) is a cardiovascular disorder in which fast heart rate occurs in the ventricles of the heart. [3] Although a few seconds of VT may not result in permanent problems, longer periods are dangerous; and multiple episodes over a short period of time are referred to as an electrical storm.
Arrhythmias, also known as cardiac arrhythmias, are irregularities in the heartbeat, including when it is too fast or too slow. [2] A resting heart rate that is too fast – above 100 beats per minute in adults – is called tachycardia, and a resting heart rate that is too slow – below 60 beats per minute – is called bradycardia. [2]
Ventricular tachycardia (VT or V-tach) is a potentially life-threatening cardiac arrhythmia that originates in the ventricles. It is usually a regular, wide complex tachycardia with a rate between 120 and 250 beats per minute.
The main cause of cardiac arrest is two types of arrhythmias called ventricular fibrillation or ventricular tachycardia. Other potential causes include: Heart tissue scarring from a previous heart ...
Not all premature chamber actions can trigger these dangerous arrhythmias; the risk is increased with ischemia of the heart muscle or with prolonged repolarization time (long QT syndrome). [22] The arrhythmia can also be triggered when an external stimulus such as cardioversion falls in the vulnerable phase of the cardiac cycle.
Ventricular arrythmias are particularly dangerous and can be fatal. “In our Phase 2 clinical program, we have not seen an increase in clinically significant cardiac arrhythmias in istaroxime treated patients while improving heart function and blood pressure in treated patients,” said Dr. Steve Simonson, CMO and SVP of Windtree.
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