Ventricular fibrillation—more commonly known as VFib—is a life-threatening heart rhythm problem that occurs when your heart's chambers aren't able to pump blood effectively. Normally, the electrical ...
One day last summer Dr. George Heitzman of Denver's National Jewish Hospital was performing experimental heart surgery on a dog. Suddenly, the animal's heart went into ...
The His-Purkinje System (HPS) is responsible for the rapid electrical activation of the heart. It is a branching network embedded within the myocardium, although electrically insulated from it, except ...