What is a Defibrillator ?

A defibrillator or AICD or ICD is a “fancy” pacemaker, which does everything that a pacemaker does, but also has a “shock box” in it. In other words, not only will it keep your heart from going too slow, but it will deliver an electrical shock if your heart goes dangerously fast. This device is generally used in patients who have a weak heart muscle or who have had previous heart attacks which cause scarring in the heart.

Atrial fibrillation is a fast heart rhythm from the Upper chambers of the heart. Ventricular tachycardia and ventricular fibrillation are life threatening rhythms from the Lower chambers of the heart. A defibrillator is generally implanted to protect patients from ventricular tachycardia and ventricular fibrillation.