This ECG shows ventricular fibrillation. Disorganized wide QRS complexes of relatively low amiplitude are present at a rate of greater than 300 beats per minute. Note the sharp spikes intermittently ...

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 ...

Much has been written on the potential dangers of sporting activities in children and young adults with potentially arrhythmogenic cardiac conditions. Current international guidelines recommend ...

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 ...

Most of the time, you don't think about your heartbeat. It works quietly in the background of your day. But sometimes your ...

Non-sustained ventricular tachycardia is an abnormally fast heart rate that occurs in the lower chambers of the heart and lasts for less than 30 seconds. Tachycardia is a heart rate that is faster ...

A trial of more than 1,000 patients with implantable cardioverter defibrillators found that the drug ranolazine (used to treat chest pain; brand name Ranexa (R)) was safe but didn't decrease the ...

Genetic mutations can impact the heart’s structure or electrical functions, potentially leading to inherited arrhythmias. Several types of heart arrhythmias, including atrial fibrillation, Brugada ...

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 ...