Heart Attack: Symptoms, Causes and Treatment

A heart attack, medically known as a myocardial infarction, happens when a blood clot blocks blood flow to part of the heart muscle. This blockage cuts off the oxygen and nutrients the heart tissue needs, and without prompt treatment it can lead to permanent damage to the heart muscle. Recognising the symptoms early and getting emergency medical care quickly can make the difference between a full recovery and lasting heart damage.

What is a heart attack?

A heart attack occurs when the blood supply to a part of the heart is blocked for a prolonged period, most often due to a blood clot forming in a narrowed coronary artery. Starved of oxygen, the affected heart muscle begins to weaken and, if the blockage isn't cleared quickly, that tissue can die. This is why a heart attack is a medical emergency that needs immediate attention — the sooner blood flow is restored, the more heart muscle can be saved.

Common symptoms of a heart attack

Symptoms can vary from person to person, but the most common warning signs include:

• Chest pain or discomfort: often described as pain, pressure, fullness or squeezing in the centre or left side of the chest. It may come and go, or last for several minutes.
• Discomfort in the upper body: pain that spreads to the back, jaw, neck, stomach or one or both arms.
• Shortness of breath: which can occur with or without chest pain.
• Nausea or vomiting.
• Cold sweats: profuse sweating, often with clammy skin.
• Light-headedness or dizziness.

Women, older adults and people with diabetes sometimes experience milder or less typical symptoms, such as unusual fatigue, indigestion-like discomfort or breathlessness alone — which is why any unexplained combination of these symptoms should be taken seriously.

Can a heart attack happen at a young age?

While heart attacks are more common in older adults, they can and do occur in younger people and even teenagers, especially when risk factors like a family history of heart disease, smoking, obesity, diabetes or an underlying heart condition are present. In younger patients, symptoms are largely similar — chest pain or pressure, breathlessness, pain radiating to the arms, neck or jaw, nausea, unexplained fatigue and cold sweats — but they are sometimes mistaken for indigestion or muscle strain, which can delay diagnosis. Any young person with these symptoms, particularly alongside known risk factors, should be evaluated promptly by a cardiologist.

How is a heart attack diagnosed?

Diagnosis usually combines a review of your symptoms and medical history with a focused set of tests:

• Medical history and physical examination: reviewing your symptoms, risk factors (smoking, high blood pressure, diabetes, family history) and checking for signs such as abnormal heart sounds or rhythm.
• Electrocardiogram (ECG/EKG): a quick, non-invasive test that records the heart's electrical activity and can reveal patterns typical of a heart attack.
• Blood tests: measuring cardiac biomarkers such as troponin, which rise when the heart muscle is damaged.
• Imaging tests: including echocardiography (ultrasound of the heart), coronary angiography (X-ray imaging with contrast dye to spot blocked arteries), and sometimes cardiac CT or MRI.
• Stress testing: in select cases, to assess how the heart performs under physical exertion.

Treatment options for a heart attack

Treatment focuses on restoring blood flow to the heart as quickly as possible and preventing further damage:

• Medications: including aspirin and other antiplatelet agents, clot-dissolving drugs, beta-blockers, ACE inhibitors and statins to manage clotting, heart rhythm, blood pressure and cholesterol.
• Angioplasty and stenting: a catheter-based procedure to open the blocked artery and place a stent to keep it open — often the fastest way to restore blood flow.
• Coronary artery bypass grafting (CABG): surgery to reroute blood flow around severely blocked arteries, used in more complex cases.
• Cardiac rehabilitation: a structured programme of supervised exercise, education and counselling to support recovery and reduce future risk.
• Long-term lifestyle changes and medication: quitting smoking, a heart-healthy diet, regular activity, weight and stress management, and continuing prescribed medicines to help prevent another cardiac event.

When should you seek emergency care?

A heart attack is a medical emergency. If you or someone nearby experiences chest pain or pressure that doesn't go away, breathlessness, cold sweats, nausea or pain spreading to the arm, jaw or back, call emergency services or get to the nearest hospital immediately — do not wait to see if the symptoms pass.

Heart attack care with Dr. Prashant Dwivedi, Cardiologist in Jaipur

Dr. Prashant Dwivedi is a trusted interventional and structural heart cardiologist in Jaipur, offering timely diagnosis and advanced treatment for heart attacks, including angioplasty and stenting, along with personalised, ongoing cardiac care. Beyond emergency and clinical treatment, Dr. Dwivedi is also involved in community heart-health awareness initiatives across Jaipur and Rajasthan, helping patients understand and reduce their risk of future cardiac events.

If you have chest pain, breathlessness or other symptoms that concern you, don't wait — consult a cardiologist promptly for evaluation.

This article is for general information only and does not replace personal medical advice. If you suspect a heart attack, seek emergency medical help immediately.