(MayoClinic.com) If you've ever watched medical shows on television, you've probably seen people on the brink of death shocked back to life by a doctor who yells "clear," then delivers one or more jolts of electricity to the chest.
This type of procedure can be done in your own home with an automated external defibrillator (AED). But AEDs aren't for everyone. An AED won't resuscitate you if you don't have the specific type of heart rhythm problem that an AED can correct. And in some circumstances, other emergency medical procedures, such as cardiopulmonary resuscitation (CPR), may be just as likely to save your life as shocks from an AED.
Home AEDs are available without a prescription. The question is whether an automated external defibrillator could be useful to you. Consider the pros and cons of owning an AED. Then you and your doctor can decide if it's worth buying the device for home use.
Cardiac arrest occurs when your heart's electrical activity becomes disrupted and the heartbeat gets dangerously fast (ventricular tachycardia) or chaotic (ventricular fibrillation). Because of this chaotic, often irregular heart rhythm (arrhythmia), your heart stops beating effectively and can't adequately pump blood.
During cardiac arrest, your brain and other vital organs quickly become starved of blood and the life-sustaining oxygen and nutrients it carries. If you survive, you may have permanent damage to your brain and other organs. The sooner your heart's rhythm is restored the better, since each minute is critical to determining your chance of survival and how much damage you might have.
Cardiopulmonary resuscitation (CPR) is a vital step in the lifesaving process and can keep some blood flowing to your heart and brain for a short time. But often only defibrillation can restore the heart's normal rhythm and ultimately save your life. This is especially true if you experience a type of abnormal heart rhythm known as ventricular fibrillation.
If you're experiencing ventricular fibrillation and an AED is on hand, a bystander could grab it and easily connect it to your chest to check your heart rhythm. If your heart rhythm can be treated with an electric shock, the AED automatically sends an electrical current to your heart muscle. That jolt could reset your heart into a normal rhythm, possibly saving your life. If you use an AED on someone, it's still critical that you call 911 or your local emergency services first, to get help on the way. Remember to begin CPR before you turn on the AED and start CPR again after the shock if CPR is still needed.
If you use an AED on someone, it's still critical that you call 911 or your local emergency services to get help on the way before you begin using the AED.
The Food and Drug Administration (FDA) has approved an over-the-counter AED for home use. Because it's over-the-counter, you don't need a prescription to buy it. The only automated external defibrillator approved for home use without a prescription is the Philips HeartStart Home Defibrillator. The HeartStart AED can be used on children as young as 8 who weigh at least 55 pounds.Putting AEDs where you need them most
In addition to being carried by police and ambulance crews, AEDs are now commonly available in many public places, including malls, office buildings, sports arenas, golf courses, cruise ships, schools, casinos, airports and airplanes.
The problem, though, is that many cardiac arrests happen in private homes. With an automated external defibrillator in your home, you wouldn't lose precious minutes waiting for rescue workers to arrive with an AED.
Proponents of in-home AEDs say putting them where they're needed most will save thousands of lives each year. If you collapse from cardiac arrest, a family member or friend could quickly grab your home AED, send a jolt of electricity to your heart and, in theory, save your life.
But critics argue there's no reliable evidence that home defibrillators actually save more lives. Critics also fear that people won't call for emergency medical services at all or quickly enough, that they won't maintain their AED properly, or that they'll forget where it's kept.How AEDs work
An AED is a device that can be attached to your chest. It senses your heart's rhythm during cardiac arrest and, in some cases, delivers an electric shock to get your heart beating again.
The home AED comes with a short instructional training video that shows how to use and maintain the device. You should watch the video when you buy the device, and periodically review the video to refresh your memory on how to use the device.
In an emergency, the automated external defibrillator essentially makes the decisions. It offers step-by-step voice instructions to guide a user through the defibrillation process. It explains how to check for breathing and a pulse and how to position electrode pads on the person's chest.
Once the pads are in place, the AED automatically measures the person's heart rhythm and determines if a shock is needed. If it is, the machine tells a user to stand back and instructs the user to push a button to deliver the shock. It will also guide users through CPR. The process can be repeated as needed until emergency crews take over.Deciding if an AED is right for your home
Having a home AED isn't right for everyone. A home AED will deliver a shock only if a person's heart has stopped due to a specific heart rhythm problem. It's also possible that a person using an AED may not use the device correctly under the stressful circumstances of providing care to a person who's in cardiac arrest.
But for some people who have a high risk of cardiac arrest, having an AED may provide peace of mind and may help save a life. There's no specific list of criteria to decide if an automated external defibrillator would be appropriate for your home. But here are some things to keep in mind as you consider whether to buy an automated external defibrillator:
If you decide to get an AED for your home, make sure you learn how to use it and maintain it properly. If you don't, an AED will be of little use in an emergency.
Here are some tips for maintaining your home AED:
AEDs offer a way to save someone's life, perhaps your own. But they may not be suitable for everyone's home. Before buying one, talk to your doctor and do a little research. And don't forget to learn the basics, like CPR.
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