Cardiac Arrest
Sudden cardiac arrest (SCA) is a condition in which the heart suddenly and unexpectedly stops beating.
- What Is Sudden Cardiac Arrest?
- What Causes Sudden Cardiac Arrest?
- What Are the Signs and Symptoms of Sudden Cardiac Arrest?
- How Is Sudden Cardiac Arrest Diagnosed?
- How Is Sudden Cardiac Arrest Treated?
- How Can Death Due to Sudden Cardiac Arrest Be Prevented?
- Key points
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How Is Sudden Cardiac Arrest Treated?
Emergency Treatment
Sudden cardiac arrest (SCA) requires immediate treatment with a defibrillator. This device sends an electric shock to the heart. The electric shock may restore a normal rhythm to a heart that's stopped beating.
To work well, defibrillation must be done within minutes of SCA. With every minute that passes, the chances of surviving SCA drop rapidly.
Police, emergency medical technicians, and other first responders usually are trained and equipped to use a defibrillator. Call 911 for US and 112 for Europe right away if someone has signs or symptoms of SCA. The sooner help is called, the sooner potentially lifesaving treatment can be done.
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Automated External Defibrillators
Automated external defibrillators (AEDs) are special defibrillators that untrained bystanders can use. These devices are becoming more available in public places like airports, office buildings, and shopping centers.
AEDs are programmed to give an electric shock if they detect a dangerous arrhythmia, such as ventricular fibrillation. This prevents giving a shock to someone who may have fainted but isn't having SCA.
Cardiopulmonary resuscitation (CPR) should be given to a person having SCA until defibrillation can be done.
People who are at risk for SCA may want to consider having an AED at home. Currently, one AED, the Phillips HeartStart Home Defibrillator, is sold over-the-counter for home use.
A 2008 study by the National Heart, Lung, and Blood Institute and the National Institutes of Health found that AEDs in the home are safe and effective. However, the benefits of home-use AEDs are still debated.
Some people feel that placing these devices in homes will save many lives, because many SCAs occur at home.
Others note that no evidence supports the idea that home-use AEDs save more lives. These people fear that people who have AEDs in their homes will delay calling for help during an emergency.
They’re also concerned that people who have home-use AEDs will not properly maintain the de vices or forget where they are.
When considering a home-use AED, talk to your doctor. He or she can help you decide whether having an AED in your home will benefit you.
Treatment in a Hospital
If you survive SCA, you usually will be admitted to a hospital for observation and treatment. In the hospital, your medical team will closely watch your heart. They may give you medicines to try to reduce the chance of another SCA.
While in the hospital, your medical team will try to find out what caused your SCA. If you're diagnosed with coronary artery disease, you may have angioplasty or coronary artery bypass grafting. These procedures help restore blood flow through narrowed or blocked coronary arteries.
Often, people who have SCA get a device called an implantable cardioverter defibrillator (ICD). This small device is surgically placed under the skin in your chest or abdomen. An ICD uses electric pulses or shocks to help control dangerous arrhythmias.