A 67-year-old man with acute anterolateral myocardial infarction had recurrent ventricular fibrillation that required insertion of temporary pacemaker. When a permanent pacemaker was inserted stable ...

There is a link between atypical heart sounds and atrial fibrillation. People with this condition have an irregular, disorganized heartbeat. Atrial fibrillation is a serious type of arrhythmia, which ...

Single-chamber ventricular leadless pacemakers do not support atrial pacing or consistent atrioventricular synchrony. A dual-chamber leadless pacemaker system consisting of two devices implanted ...

Narrow QRS complexes occur regularly. This tracing suggests either atrial flutter or ventricular tachycardia. It is not atrial flutter, however. If it were, the QRS complexes occurring regularly would ...

A new study published in Frontiers of Medicine focuses on establishing normative values for left ventricular (LV) and left atrial (LA) size and function using three-dimensional echocardiography (3DE) ...

Atrial fibrillation is the most common arrhythmia - problems with the speed or rhythm of the heartbeat. Arrhythmias are caused by a disorder in the heart's electrical system. The walls of the atria ...

With numerical simulations, researchers have demonstrated a new way to time weak electrical pulses that can stop certain life-threatening arrhythmias. The group shows that timed pulses are successful ...

Atrial dysfunction, widely considered a marker or consequence of other heart diseases, is a relevant clinical entity, which is why it is justified to define atrial failure or insufficiency as "a new ...

Ventricular tachycardia is a type of arrhythmia, or abnormal heart rhythm. Sometimes called VT or V-tach, it’s an unusually fast heartbeat that starts in the lower part of your heart called the ...

In a normal heart rhythm, your heart beats in a steady, even way. The upper part of your heart (atria) squeezes and pushes blood to the lower part (ventricles), pumping blood and oxygen out to the ...