What is Polymorphic Ventricular Tachycardia?
Polymorphic Ventricular Tachycardia (PVT) is a type of abnormal heart rhythm that originates in the ventricles of the heart. It is characterized by a rapid and irregular heart rate and can be caused by a variety of underlying conditions, such as heart disease, electrolyte imbalances, or certain medications. PVT can be life-threatening if not treated promptly and can lead to cardiac arrest or ventricular fibrillation. Treatment options may include anti-arrhythmic medications, cardioversion, or in some cases, an implantable cardioverter-defibrillator (ICD). It is often seen in patients with structural heart disease, such as ischemic or nonischemic cardiomyopathy. It can also be caused by genetic or inherited disorders, such as long QT syndrome or catecholaminergic polymorphic VT. It can be difficult to diagnose PVT, as the electrocardiogram (ECG) during the episode may not always be diagnostic. Treatment options for PVT include medications to slow the heart rate, such as beta-blockers or calcium channel blockers, and electrical cardioversion to restore normal rhythm. In some cases, an implantable cardioverter-defibrillator (ICD) may be recommended for patients at high risk of sudden cardiac arrest. In rare cases, catheter ablation of the heart may be considered a therapeutic option to prevent recurrent episodes of PVT.
Also Read: Cardiac Cycle
Difference Between Polymorphic and Monomorphic Ventricular Tachycardia
Polymorphic ventricular tachycardia (PVT) and Monomorphic ventricular tachycardia (MVT) are both types of ventricular tachycardia (VT), which is a fast heart rhythm originating from the ventricles. The key difference between PVT and MVT is that PVT is characterized by a constantly changing QRS complex, while MVT has a consistent QRS complex.