When sudden cardiac arrest is detected, the device delivers a shock to the heart to stop the abnormal heart rhythm, reset the rhythm, and restore normal blood flow through the body. (sciencedaily.com)
This results in damage to the walls of the blood vessels which can compromise normal blood flow to the brain, heart, kidneys, and skin. (rachelebaker.com)
When you have heart disease, your heart arteries usually get blocked, thus disrupting normal blood flow. (termlife2go.com)