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This information is designed to provide you with helpful educational information but is for information purposes only, is not medical advice, and should not be used as an alternative to speaking with your doctor. No representation is made that the information provided is current, complete, or accurate. Medtronic does not assume any responsibility for persons relying on the information provided. Be sure to discuss questions specific to your health and treatments with a healthcare professional. For more information please speak to your healthcare professional.
Over 33,000 people experience an out of hospital cardiac arrest in Australia every year. Less than 9% will survive.
SCA is a condition in which the heart suddenly and unexpectedly stops beating. If this happens, blood stops flowing to the brain and other vital organs. SCA can cause death if it’s not treated within minutes. 2
Sudden cardiac arrest is not the same as a heart attack. A heart attack is a “plumbing” problem, caused by blockage(s) in the arteries leading to the heart and killing heart muscle. A heart attack may lead to a sudden cardiac arrest event.
A way to treat SCA is through defibrillation.1 It involves delivering electrical shock to the heart to restore the normal heartbeat. There are two types of devices that can deliver these electrical shocks: AEDs and ICDs.
An AED is a portable device used by emergency response teams or the general public to shock the heart.
An ICD is a device implanted underneath the skin, usually near the collarbone. One or more wires, called leads, run from the ICD through the veins and into the heart. It continuously monitors the heart rate. If it detects an abnormal or fast heart rate, low or high energy shocks are sent to the heart to correct the heart rate.
Zipes DP, Roberts D, for the Pacemaker-Cardioverter-Defibrillator investigators. Results of the International Study of the Implantable Pacemaker Cardioverter-Defibrillator: A Comparison of Epicardial and Endocardial Lead Systems. Circulation. July 1, 1995;92(1):59-65.