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Sep 7, 2021 · Polymorphic ventricular tachycardia (VT) is a malignant ventricular tachyarrhythmia with changing QRS pattern that will either terminate spontaneously (causing syncope if it lasts more than a few seconds) or will deteriorate to ventricular fibrillation (VF), causing cardiac arrest.
Apr 15, 2023 · 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, axis, and duration. The most common cause of PVT is myocardial ischaemia/infarction.
Mar 6, 2024 · Ventricular tachycardia is caused by faulty heart signaling that makes the heart beat too fast in the lower heart chambers. The lower heart chambers are called the ventricles. The fast heart rate doesn't allow the ventricles to fill and squeeze to pump enough blood to the body.
We present an in-depth review of the different forms of polymorphic ventricular tachycardia and propose a practical step-by-step approach for distinguishing these malignant arrhythmias. Key Words: Brugada syndrome quinidine tachycardia, ventricular torsade de pointes ventricular fibrillation.
Aug 11, 2021 · Causes of polymorphic ventricular tachycardia (VT) and their treatment. Different types of polymorphic VTs based on the underlying substrate are shown, from polymorphic VTs with a short coupling interval of the initiating ectopic beat on the left to those with a relatively long coupling interval of the initiating ectopic beat on the right.
Catecholaminergic polymorphic ventricular tachycardia is a genetic disorder affecting intracellular calcium regulation in cardiac tissue. Patients are predisposed to atrial and/or ventricular tachyarrhythmias and sudden cardiac death, particularly during increased adrenergic activity.
Mar 6, 2024 · Ventricular tachycardia that lasts longer than 30 seconds, called sustained V-tach, needs emergency medical treatment. Sustained V-tach may sometimes lead to sudden cardiac death. The goals of ventricular tachycardia treatment are to: Slow a rapid heartbeat. Prevent future episodes of a fast heartbeat.
Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a genetic condition that can cause a fast abnormal heart beat from the ventricles. CPVT may cause a loss of consciousness or sudden death due to the lack of blood pumped to the body.
CPVT, or Catecholaminergic Polymorphic Ventricular Tachycardia, is an inherited arrhythmia syndrome that affects 1 out of 5000 in the population. It is caused most commonly by abnormal control of calcium movement in heart muscle cells. Symptoms.
Sustained polymorphic ventricular tachycardia (VT) has a continuously changing QRS configuration from beat to beat, indicating a continually changing ventricular activation sequence. However, unlike sustained monomorphic VT, polymorphic VT does not necessarily indicate a fixed structural abnormality or focus of automaticity.
