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Signs of a Heart Attack – Recognize Symptoms

Recognizing the signs of a heart attack can save lives. Common symptoms include chest pain, shortness of breath, and pain radiating to the arm. Learn more now.

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Things worth knowing about "signs of heart attack"

Recognizing the signs of a heart attack can save lives. Common symptoms include chest pain, shortness of breath, and pain radiating to the arm. Learn more now.

What Is a Heart Attack?

A heart attack (medically known as a myocardial infarction) occurs when blood flow to a part of the heart muscle is suddenly blocked. This is most often caused by a blood clot forming in a coronary artery that has already been narrowed by atherosclerosis (plaque buildup). Without sufficient oxygen, the affected heart muscle tissue begins to die. A heart attack is a medical emergency where every minute counts.

Classic Signs of a Heart Attack

The symptoms of a heart attack can vary from person to person. The most common and well-known warning signs include:

Chest pain or pressure: A persistent, squeezing, pressing, or burning sensation in the center or left side of the chest, lasting more than a few minutes or coming and going.
Radiating pain: Discomfort that spreads to the left arm, neck, jaw, back, or upper abdomen.
Shortness of breath: Difficulty breathing or feeling unable to get enough air, sometimes occurring without chest pain.
Nausea and vomiting: Particularly common in women.
Cold sweats: Sudden, unexplained sweating.
Dizziness or lightheadedness: A feeling of weakness, faintness, or near-fainting.
Pale or grayish skin color: An unusual pallor or grayish appearance of the face.

Atypical Signs – Especially in Women

Women often experience a heart attack with different or less pronounced symptoms than men. This can lead to delayed recognition and treatment. Atypical signs may include:

Unusual fatigue or exhaustion (sometimes days before the event)
Upper abdominal pain that may feel like a stomach problem
Nausea without chest pain
Back or jaw pain
Insomnia in the days leading up to the event

Warning Signs – Hours or Days Before

Sometimes so-called prodromal symptoms appear hours or even days before a heart attack. These include:

Recurring or new onset chest tightness (unstable angina)
Unusual fatigue with minimal exertion
Occasional shortness of breath or palpitations

These symptoms should always be taken seriously and evaluated by a doctor promptly.

What to Do If a Heart Attack Is Suspected

If a heart attack is suspected, immediate action is essential:

Call emergency services immediately (e.g., 911 in the US, 112 in Europe) – do not delay.
Have the person sit or lie down in a comfortable position (semi-upright is preferred).
Loosen any tight clothing.
Stay with the person and keep them calm.
If the person becomes unconscious and shows no signs of life, begin CPR (cardiopulmonary resuscitation) while keeping emergency services informed.

Diagnosis

In the hospital, a heart attack is diagnosed using the following methods:

ECG (Electrocardiogram): Records the electrical activity of the heart and reveals characteristic changes associated with a heart attack.
Blood tests: Cardiac enzymes such as troponin are released into the bloodstream when heart muscle is damaged and can be detected in blood tests.
Echocardiography: An ultrasound examination of the heart to assess its function and structure.
Coronary angiography (cardiac catheterization): Directly shows which coronary artery is blocked.

Treatment

Treatment of a heart attack must begin as quickly as possible. The goal is to reopen the blocked artery and preserve as much heart muscle as possible:

Percutaneous coronary intervention (PCI): The blocked artery is mechanically widened using a balloon and kept open with a stent.
Thrombolysis: Medications are used to dissolve the blood clot if PCI is not immediately available.
Medications: Blood thinners, beta-blockers, ACE inhibitors, and statins are used to support the heart and prevent future events.

Risk Factors and Prevention

The most important risk factors for a heart attack include:

Smoking
High blood pressure (hypertension)
Elevated blood lipid levels (hypercholesterolemia)
Diabetes mellitus
Obesity and physical inactivity
Family history of heart disease

A healthy lifestyle, regular medical check-ups, and consistent management of risk factors can significantly reduce the risk of a heart attack.

References

European Society of Cardiology (ESC) – 2023 ESC Guidelines for the management of acute coronary syndromes. European Heart Journal, 2023.
World Health Organization (WHO) – Cardiovascular diseases (CVDs): Key facts. Available at: https://www.who.int/news-room/fact-sheets/detail/cardiovascular-diseases-(cvds)
American Heart Association (AHA) – Heart Attack Symptoms, Risk, and Recovery. Available at: https://www.heart.org/en/health-topics/heart-attack

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