After epinephrine infusion, 4 episodes persisted for 10 min and were terminated by electrical cardioversion. After the animals were killed, the heart and sections of lung, liver, kidney ...

The QRS duration will lengthen when electrical activity takes a long time to travel throughout the ventricular myocardium. The normal conduction system in the ventricles is called the His-Purkinje ...

Medically reviewed by Christopher Lee, MD Having high blood pressure but a low pulse rate can be a sign of a more serious underlying health condition, such as a heart problem. Your blood pressure is ...

One in three people worldwide will develop a potentially life-threatening heart rhythm disorder in their lifetime, yet ...

A junctional rhythm occurs when the electrical ... the heart originates near or within the atrioventricular node, rather than from the sinoatrial node. Because the normal ventricular conduction ...

The impulse is then passed to another node within the heart – the atrioventricular node (AVN). This node is in the lower part of the right atrium.

The heart’s AV node is part of its electrical conduction system controlled by the autonomic nervous system and electrically connects the atria and ventricles. It’s well known that athletes are ...