There are only a few sinus rhythm QRS complexes available to examine on this ECG. Using lead V1 an incomplete right bundle branch block is seen. A prolonged QT interval is present that extends all the ...

A first-in-human multicenter trial involving Mayo Clinic has used a new ablation technique for patients with ventricular tachycardia, an abnormally rapid heart rhythm that is a leading cause of sudden ...

This is a challenging ECG in regards to determining if the wide QRS complex rhythm is from ventricular tachycardia or "SVT with aberrancy" such as AV nodal reentry tachycardia causing a rate-dependent ...

SUDDEN death in persons with artificial pacemakers is a continuing and disturbing problem. Causes include pacemaker-catheter displacement, electric-component failure, broken wires and rising pacing ...

Lidocaine is used intravenously to treat cardiac arrest that’s caused by a ventricular arrhythmia in people who don’t respond to defibrillation. It may help improve the chance of survival. A heart ...

This Journal feature begins with a case vignette highlighting a common clinical problem. Evidence supporting various strategies is then presented, followed by a review of formal guidelines, when they ...

A new multicenter trial has used a new ablation technique for patients with ventricular tachycardia, an abnormally rapid heart rhythm that is a leading cause of sudden cardiac death worldwide. A first ...

Radiation therapy often is used to treat cancer patients. Now, doctors have shown that radiation therapy -- aimed directly at the heart -- can be used to treat patients with a life-threatening heart ...

Dysrhythmia and arrhythmia both mean the same thing: an unusual heart rhythm. The only difference is that the word dysrhythmia literally means “bad rhythm” while arrhythmia means “without rhythm.” ...