Current guidelines from the American College of Cardiology and the American Heart Association recommend cardiac resynchronization therapy (CRT) for patients with NYHA class III or IV heart failure ...

Current guidelines support the use of cardiac resynchronization therapy (CRT) in patients with heart failure and a prolonged QRS interval (≥120 ms); however, tissue Doppler imaging has shown that some ...

Washington, DC - A wide QRS interval as an electrocardiographic marker for ventricular dyssynchrony is typically a prerequisite for cardiac resynchronization therapy (CRT) in patients with heart ...

THE electrocardiographic picture of prolonged QRS-complex duration with short PR interval was the subject of isolated reports 1,2 until Wolff, Parkinson and White 3 described the clinical syndrome of ...

QRS interval widening appears to be highly specific for the diagnosis of hyperkalemia in patients with end-stage kidney disease. ECG changes, in general, have poor sensitivities for hyperkalemia in ...

Presenter: Jeanne E. Poole, MD, University of Washington (Seattle) for the SCD-HeFT Investigators The high incidence of sudden cardiac death (SCD), particularly in patients with impaired left ...

CARDIAC failure is frequently precipitated by a noncardiac illness. Although digitalis is used to restore and maintain compensation, the self-limiting nature of the precipitating event or its response ...

A study among almost 50,000 people worldwide has identified DNA sequence variations linked with the heart's electrical rhythm in several surprising regions among 22 locations across the human genome.