Sudden cardiac arrest (SCA) is a condition in which the heartbeat stops abruptly and unexpectedly. This usually is caused by ventricular fibrillation (VF), an abnormality in the heart's electrical system. When this happens, blood stops flowing to the brain the heart and the rest of the body, and the person collapses. In fact, the victim is clinically dead and will remain so unless someone helps immediately. A quick combination of CPR and defibrillation can restore life. Contact us.
Most heart attacks involve discomfort in the center of the chest that lasts more than a few minutes or that goes away and comes back. Some heart attack victims experience mild intermittent chest discomfort that comes and goes over a period of days. These are early “warning signs” that may precede a heart attack. (Some victims, however, do not experience any warning signs.) Chest discomfort can feel like uncomfortable pressure, squeezing or fullness. It can evolve into crushing pain if nothing is done.
Other symptoms of heart attack include:
  • Pain or discomfort in one or both arms, spreading to the shoulder, upper back, neck or jaw
  • Shortness of breath
  • Nausea, sweating, lightheadedness
  • A general sense of anxiety
  • A tendency to deny that anything serious is happening.
It’s important to act right away if these symptoms occur to maximize the odds of survival and minimize potential permanent damage to the heart.Contact us.
The risk factors for heart attack include:
  • A family history of heart disease
  • Smoking
  • High blood pressure
  • High cholesterol
  • Obesity
  • Diabetes
  • A sedentary lifestyle
  • Stress.
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Here are some risk factors:
  • A previous heart attack
  • A previous episode of cardiac arrest
  • A low (<35%) ejection fraction or EF (the heart’s ability to pump blood)
  • Underlying heart conditions such as coronary artery disease, congenital heart disease (e.g., hypertrophic cardiomyopathy), electrophysiological abnormalities (e.g., Long QT syndrome, Wolff-Parkinson-White disease, Brugada syndrome)
  • Severe heart failure
  • Marked changes in electrolytes in the blood
  • A tendency to faint
  • Hyperthyroidism
  • Electrocution
  • Drug abuse
  • A family history of heart disease or stroke.
If you have one or more of these risk factors, you may be a candidate for SCA. If you think may be at risk, you should see a cardiologist or heart rhythm specialist (e.g., electrophysiologist, or EP) for an evaluation. The specialist may recommend implantable cardioverter defibrillator (ICD) therapy, medications, or other measures to prevent sudden death. Contact us.
There are three common causes. Long QT syndrome is an often unrecognized congenital condition that predisposes the child to an abnormality in the heart's electrical system, which can lead to SCA. This is a genetic disease that affects 1 in 7,000 young people. Episodes are most commonly triggered by physical exertion or emotional stress. Commotio cordis is an electrical disturbance cases by a blow to the chest. It occurs most often in baseball, but has been reported in other sports and situations in which there is a blow to the chest.Only 18 victims (14%) survived; most who survived received prompt CPR and defibrillation. Hypertropic cardiomyopathy is a congenital heart muscle disease. The walls of the heart's left ventrical become abnormally thickened (hypertrophy). The structural abnormality can lead to obstruction of blood flow from the heart, causing loss of consciousness and irregular heartbeat, leading to SCA. About 1 in 500 to 1000 young people have this condition. Contact us.
An AED, or automated external defibrillator, is a device that automatically analyzes heart rhythms and advises the operator to deliver a shock if the heart is in a fatal heart rhythm. AEDs are safe and will not shock anyone who is not in a fatal heart rhythm. Non-medical personnel can use AEDs safely and effectively with minimal training. Contact us.
The ejection fraction (EF) is a measurement of how much blood is pumped by the verntricles with each heart beat. A healthy heart pumps 55 percent or more of its blood with each beat. Contact us.
Regular exercise, smoking cessation, weight management, and efforts to control high blood pressure and diabetes go a long way to help prevent heart problems.
Additionally, being aware of your family history and your individual risk factors can help you make better choices and receive proper treatment. Contact us.