Polymorphic ventricular tachycardia is an abnormal heart rhythm where the bottom chambers of your heart beat too quickly. People with severe cases may experience sudden cardiac arrest. Conditions that ...

Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a heart rhythm problem, or arrhythmia. If you have it, your heartbeat is faster and irregular at times. When this happens, it’s harder ...

A 25-year-old woman presented to her local hospital following her third episode of syncope in 2 years. All three episodes occurred when she sat down -- the first on a train; the second and third after ...

Please provide your email address to receive an email when new articles are posted on . Sick sinus syndrome, also known as SSS, was first described in 1968. It is a syndrome due to primary ...

Polymorphic ventricular tachycardia (a.k.a. Torsades de Pointes) is best treated with intravenous magnesium. Patients with a prolonged QT interval have a higher risk of developing polymorphic VT.

Premature ventricular contraction (PVC) is a type of abnormal heartbeat, or arrhythmia. It happens when the heartbeat begins in the lower, rather than the upper, heart chambers. This creates an ...