1. Heart Attack and Cardiac Arrest Are Not the Same
Although both involve the heart and require immediate medical attention, a heart attack and a cardiac arrest are two different conditions.
- A heart attack occurs when blood flow to part of the heart muscle becomes blocked, usually due to a clogged artery.
- A cardiac arrest happens when the heart suddenly stops beating properly because of an electrical malfunction.
- During a heart attack, the heart usually continues to beat, but during cardiac arrest, the heart stops pumping blood effectively.
- Both conditions are life-threatening and require emergency treatment, but cardiac arrest demands immediate action within minutes.
2. What Causes a Heart Attack?
A heart attack develops when the heart muscle doesn't receive enough oxygen-rich blood.
- The most common cause is the buildup of fatty deposits (plaque) inside the coronary arteries.
- When the plaque ruptures, a blood clot can form and block blood flow.
- Risk factors include:
- High blood pressure
- High cholesterol
- Diabetes
- Smoking
- Obesity
- Lack of physical activity
- Family history of heart disease
- Prompt treatment can minimize heart muscle damage and improve recovery.
3. What Causes Cardiac Arrest?
Cardiac arrest is caused by a sudden disruption in the heart's electrical system.
- The heart may beat too fast, too slowly, or stop altogether.
- Common causes include:
- Dangerous abnormal heart rhythms (arrhythmias)
- Previous heart attack
- Heart failure
- Cardiomyopathy (heart muscle disease)
- Severe electrolyte imbalances
- Certain inherited heart conditions
- Cardiac arrest can occur without warning, even in people who previously appeared healthy.
4. Recognizing the Symptoms
Understanding the warning signs can help you respond quickly.
Heart Attack Symptoms:
- Chest pain or pressure
- Pain spreading to the arm, jaw, neck, back, or shoulder
- Shortness of breath
- Cold sweat
- Nausea or vomiting
- Lightheadedness or dizziness
- Unusual fatigue, especially in women
Cardiac Arrest Symptoms:
- Sudden collapse
- Loss of consciousness
- No pulse
- No normal breathing or only gasping
- No response to voice or touch
Unlike a heart attack, cardiac arrest often happens suddenly with little or no warning.
5. What to Do During an Emergency
Fast action can save lives.
- If someone is having a heart attack:
- Call emergency medical services immediately.
- Keep the person calm and seated.
- If advised by emergency responders and there are no contraindications, aspirin may be recommended while waiting for help.
- Do not delay seeking medical care.
- If someone goes into cardiac arrest:
- Call emergency medical services immediately.
- Begin CPR (cardiopulmonary resuscitation) right away.
- Use an Automated External Defibrillator (AED) as soon as one is available.
- Continue CPR until emergency responders arrive.
A heart attack is a circulation problem, while a cardiac arrest is an electrical problem. Although a heart attack can sometimes trigger cardiac arrest, they are not the same condition. Recognizing the symptoms and acting quickly can make a significant difference in survival and recovery. Maintaining a heart-healthy lifestyle, managing chronic conditions, and seeking regular medical check-ups are important steps in reducing the risk of both emergencies.