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According to the Heart Rhythm Society, more than 350,000 deaths occur each year from Sudden Cardiac Arrest (SCA). To decrease the death toll from SCA, it is important to understand what SCA is, what the warning signs are, and how to respond to a SCA event.
People often use the term "heart attack" interchangeably with SCA, but they are NOT the same thing!

What is the difference?

A heart attack occurs when a blocked artery prevents oxygen-rich blood from reaching a section of the heart. If the blocked artery is not reopened quickly, the part of the heart normally nourished by that artery begins to die. The longer a person goes without treatment, the greater the damage.

Sudden Cardiac Arrest occurs suddenly and oftentimes without warning. It is triggered by an electrical malfunction in the heart that causes an irregular heartbeat (arrhythmia). With its pumping action disrupted, the heart cannot pump blood to the brain, lungs and other organs. Seconds later, a person loses consciousness and has no pulse. Death occurs within minutes if the victim does not receive treatment.

An easy way to remember the difference is that a heart attack is a "circulation" problem and sudden cardiac arrest is an "electrical" problem. These two distinct heart conditions are, however, linked. SCA can occur after or during recovery from a heart attack. Having a heart attack increases the risk for sudden cardiac arrest.
What are the warning signs of SCA?

In many cases of SCA, warning signs and symptoms are present beforehand and should not be ignored:October is a month designated to support the goals and ideals of National Sudden Cardiac Arrest Awareness Month. Sudden cardiac arrest is often compared to a heart attack, but in reality, the two are very different. A heart attack is when blood flow to the heart is blocked. Sudden cardiac arrest is when the heart malfunctions and stops beating unexpectedly. To put it simply, a heart attack is a "circulation" failure, while cardiac arrest is "electrical" failure. In 95% of sudden cardiac cases, the victim is lost.

Every year, more than 350,000 people die as a result of cardiac arrest. In fact, sudden cardiac arrest (or SCA) kills one person every two minutes. That's claiming more lives than breast cancer, lung cancer, or AIDS. The scariest part is, SCA does not discriminate. It takes the lives of men, women, babies, teens ... All the way up to the elderly. This can effect anyone and everyone. In order to decrease the death toll, it's important to educate people on what SCA is, what the warning signs are, and how to respond if someone around you goes into cardiac arrest.

•     Racing heart rate or heart palpitations
•     Dizziness or lightheadedness especially with exercise
•     Repeated unexplained fainting
•     Fainting or seizures during or right after exercise
•     Chest pain or excessive shortness of breath with exercise
•     Family history of heart disease or abnormalities

What to do if you suspect SCA?

Sudden Cardiac Arrest is reversible in most cases if it's treated within a few minutes. First, call 9-1-1 for emergency medical services. Then, if one is available, use an automated external defibrillator (AED) and/or CPR immediately and continue until emergency assistance arrives.

Time-to-treatment is critical when considering the chance of survival for an SCA victim. Ninety-five percent of those who experience SCA die because they do not receive life-saving defibrillation within four to six minutes, before brain and permanent death start to occur. Learn more about the steps to take when responding to a potential SCA emergency. Knowing these steps could make the make the difference between life and death for the victim.

Source: American Family Care