Cardiology

Cause of ventricular tachycardia determines treatment

Dear Mayo Clinic: Recently, I was diagnosed with ventricular tachycardia, but doctors said a cause cannot be determined. What usually causes this problem? Does knowing the cause make a difference in treatment?

Diseases, Conditions, Syndromes

Chronic fatigue syndrome—a system under stress

Australian researchers have discovered for the first time that reduced heart rate variability – or changes in heart beat timing – best predicts cognitive disturbances, such as concentration difficulties commonly reported ...

Cardiology

Early rhythm control key in A-fib and heart failure

(HealthDay)—For patients with atrial fibrillation and signs and symptoms of heart failure, early rhythm control (ERC) therapy reduces cardiovascular events, according to a study published online July 30 in Circulation to ...

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