Myocardial Infarction (Heart Attack)

What is this disease?

Symptoms

• Chest Pain or Pressure severe

  Feeling of intense pressure, tightness, squeezing, aching, or heavy pain in the center or left side of the chest that lasts for more than a few minutes.

• Radiating Body Pain moderate

  Discomfort or pain spreading outward from the chest to the left shoulder, left arm, neck, jaw, upper back, or stomach.

• Shortness of Breath (Dyspnea) moderate

  Difficulty breathing or feeling winded, which can occur before or alongside chest pain while at rest or during light activity.

• Sudden Cold Sweats mild

  Breaking out in a sudden, unexplained cold sweat or feeling clammy without exertion.

• Dizziness or Lightheadedness moderate

  Feeling unusually faint, unsteady, or dizzy, often accompanied by sudden loss of strength or near-fainting.

• Sudden Severe Fatigue mild

  An unusual or severe sense of tiredness and exhaustion that develops days or weeks prior to a cardiac event, especially common in women.

Causes & risk factors

• Coronary Artery Disease cause

  Build-up of fatty deposits (plaque) in the coronary arteries that supply blood to the heart muscle, leading to reduced blood flow or complete blockage.

• Blood Clot Formation cause

  Rupture of an atherosclerotic plaque inside a coronary artery, causing a blood clot to form and block blood flow to the heart tissue.

• High Blood Pressure risk factor

  Sustained high blood pressure damages arteries over time, accelerating plaque accumulation and increasing the heart muscle's workload.

• High Cholesterol risk factor

  Elevated levels of low-density lipoprotein (LDL) cholesterol and triglycerides contribute to plaque formation in the coronary arteries.

• Smoking & Tobacco Use lifestyle

  Smoking or exposure to secondhand smoke damages blood vessel walls, increases blood clotting risks, and accelerates atherosclerosis.

• Diabetes Mellitus risk factor

  Chronic high blood sugar damages blood vessels and nerves controlling the heart, significantly increasing the risk of cardiovascular disease.

Diagnosis / tests

• Electrocardiogram (ECG / EKG)

  Records the electrical activity of the heart to identify damaged heart muscle tissue, detect abnormal heart rhythms, and determine whether a STEMI or NSTEMI heart attack is occurring.

• Cardiac Enzyme & Troponin Test

  Measures specific blood proteins (like cardiac troponin) that leak into the bloodstream when heart muscle cells are damaged or dying due to ischemia.

• Coronary Angiography

  Involves injecting a special dye into the coronary arteries via a catheter to visualize real-time blood flow on X-rays and pinpoint exact locations of arterial blockages.

• Echocardiogram

  Uses sound waves to create moving images of the heart, evaluating overall pumping function, wall motion abnormalities, and damaged muscle areas.

• Chest X-Ray

  Provides clear visual images of the heart, lungs, and surrounding blood vessels to check heart size and rule out alternative causes of chest pain (e.g., fluid in lungs or aortic issues).

First aid / immediate care

1. Call for Emergency Help Immediately Emergency

   Dial your local emergency phone number (e.g., 911 or local ambulance service) right away. Never delay calling for emergency assistance if a heart attack is suspected.

2. Have the Person Sit and Rest

   Have the person sit down, rest, and try to stay calm. Position them in a comfortable position, such as sitting on the floor leaning against a wall, to reduce strain on the heart.

3. Administer Aspirin (If Safe)

   If the person is conscious, not allergic to aspirin, and has no contraindications, have them chew and swallow an adult aspirin (325 mg) or two low-dose aspirins (81 mg each).

4. Monitor Breathing and Prepare CPR

   Keep a close eye on the person's breathing and responsiveness. If they become unconscious and stop breathing normally, begin CPR immediately (hands-only CPR if not trained in rescue breaths) and use an Automated External Defibrillator (AED) if available.

Treatment

Educational information only — not a personal prescription. Always consult a qualified clinician.

• Thrombolytic Therapy medication

  intravenous clot-busting medications (such as tissue plasminogen activator, or tPA) administered to dissolve blood clots blocking coronary arteries when emergency angioplasty is not immediately available.

• Antiplatelet & Anticoagulant Therapy medication

  Administration of aspirin, P2Y12 inhibitors (e.g., clopidogrel, ticagrelor), and heparin to prevent existing blood clots from growing larger and block new clot formation.

• Coronary Angioplasty & Stenting procedure

  A minimally invasive emergency procedure where a catheter with a tiny balloon is inflated inside the blocked coronary artery to restore blood flow, followed by placing a mesh stent to keep the vessel open.

• Coronary Artery Bypass Surgery surgery

  Open-heart surgical procedure where a healthy blood vessel from another part of the body (leg, arm, or chest) is grafted to reroute blood around severe or multiple coronary artery blockages.

• Beta-Blockers & ACE Inhibitors medication

  Long-term prescription medications, including beta-blockers, ACE inhibitors/ARBs, and statins, to reduce heart workload, lower blood pressure, stabilize plaque, and prevent future cardiac events.

• Cardiac Rehabilitation Program therapy

  A medically supervised recovery program involving monitored exercise training, cardiovascular risk factor education, nutrition counseling, and emotional support.

Prevention / protection

• Adopt a Heart-Healthy Diet

  Consume a balanced diet rich in fruits, vegetables, whole grains, lean proteins, and healthy fats while limiting saturated fats, trans fats, refined sugars, and high-sodium foods.

• Exercise Regularly

  Aim for at least 150 minutes of moderate-intensity aerobic exercise (such as brisk walking, swimming, or cycling) per week to strengthen the heart and improve circulation.

• Quit Smoking & Limit Alcohol

  Avoid smoking, vaping, and exposure to secondhand smoke to prevent blood vessel damage, and keep alcohol consumption to moderate levels or avoid it entirely.

• Control Blood Pressure & Cholesterol

  Routinely monitor and manage blood pressure and lipid levels through lifestyle changes or prescribed medications to prevent plaque buildup in the arteries.

• Manage Blood Sugar Levels

  Maintain healthy blood glucose levels through proper diet, regular exercise, and medication management to minimize vascular damage associated with diabetes.

• Stress Management & Weight Control

  Practice stress-reduction techniques like mindfulness or deep breathing, ensure adequate sleep, and maintain a healthy Body Mass Index (BMI) to reduce strain on the cardiovascular system.

Diet & lifestyle

Lifestyle

Diet

Things to avoid

• Mediterranean or DASH Diet Pattern diet

  Emphasize fruits, vegetables, whole grains, nuts, seeds, and lean proteins like fish. Minimize saturated fats, trans fats, refined carbohydrates, and added sugars.

• Sodium Reduction diet

  Restrict daily sodium intake (aim for under 2,000 mg per day) by avoiding processed foods, canned soups, and heavy table salt to manage blood pressure.

• Cardiac Rehabilitation & Exercise exercise

  Participate in medically supervised exercise training initially, gradually working up to 150 minutes per week of moderate aerobic activity like walking.

• Smoking & Tobacco Use things to avoid

  Avoid all forms of tobacco, vaping, and secondhand smoke exposure, as nicotine constricts blood vessels and significantly increases recurrent heart attack risks.

• Excessive Alcohol & Processed Foods things to avoid

  Avoid heavy alcohol consumption, ultra-processed foods, fried items, and sugary beverages that contribute to weight gain, high cholesterol, and hypertension.

• Stress Reduction & Sleep Hygiene general advice

  Maintain a healthy body weight, practice daily stress management techniques (meditation, deep breathing), and prioritize 7 to 8 hours of quality sleep nightly.

FAQs

Related health blogs