Coronary Artery Disease

What is this disease?

Symptoms

• Chest Pain or Pressure (Angina) moderate

  A feeling of tightness, squeezing, heaviness, or burning sensation behind the breastbone during physical effort or emotional stress.

• Shortness of Breath (Dyspnea) moderate

  Difficulty catching breath during light daily activity or while resting due to reduced blood flow to the heart muscle.

• Radiating Upper Body Discomfort moderate

  Pain, numbness, or aching radiating to the left shoulder, left arm, neck, jaw, upper abdomen, or back.

• Unexplained Cold Sweats & Dizziness severe

  Sudden profuse cold perspiration accompanied by severe lightheadedness, nausea, or feeling faint.

• Crushing Chest Pain & Acute Ischemia severe

  ntense, unresolving chest pressure accompanied by difficulty breathing and severe anxiety indicating potential acute myocardial infarction.

Causes & risk factors

• Atherosclerosis (Plaque Buildup) cause

  The primary cause of CAD involves progressive accumulation of fatty deposits, cholesterol, and calcium along the inner lining of coronary arterial walls.

• High Blood Pressure (Hypertension) risk factor

  Chronic elevated blood pressure that damages, hardens, and narrows coronary arteries over time, increasing workload on the heart.

• Elevated LDL Cholesterol & Triglycerides risk factor

  High circulating levels of low-density lipoprotein (LDL) cholesterol that penetrate arterial walls and accelerate plaque formation.

• Tobacco Smoking & Nicotine Exposure lifestyle

  Chemical toxins in tobacco smoke that cause endothelial vascular damage, promote blood clotting, and trigger arterial constriction.

• Diabetes Mellitus & Insulin Resistance risk factor

  Sustained high blood sugar levels that accelerate endothelial damage and plaque accumulation within the coronary blood vessels.

Diagnosis / tests

• Electrocardiogram (ECG / EKG)

  Records the electrical signals of the heart to identify abnormal heart rhythms, previous heart attacks, or ongoing myocardial ischemia (lack of oxygen flow).

• Echocardiogram (Cardiac Ultrasound)

  Uses sound waves to produce real-time moving images of the heart, evaluating chamber structure, valve health, wall motion abnormalities, and overall pumping capacity (ejection fraction).

• Cardiac Exercise Stress Test

  Monitors ECG readings, heart rate, and blood pressure while walking on a treadmill or riding a stationary bike to evaluate how well the heart performs under physical stress and detect blockages.

• Coronary Computed Tomography Angiography (CCTA)

  A non-invasive specialized CT scan with intravenous contrast dye that creates detailed 3D images of the coronary arteries to detect calcified and non-calcified arterial plaque buildup.

• Coronary Angiography (Cardiac Catheterization)

  The definitive gold-standard diagnostic procedure where a catheter is routed to the coronary arteries and X-ray contrast dye is injected to pinpoint the exact location and severity of blood vessel blockages.

First aid / immediate care

1. Call Emergency Services Immediately Emergency

   Dial local emergency services (108 / 911) immediately at the first onset of severe chest pain, pressure, or symptoms of a suspected heart attack.

2. Rest in a Comfortable Seated Position

   Have the person stop all physical activity and sit down comfortably, leaning slightly forward with their back supported to minimize physical exertion and reduce heart workload.

3. Loosen Restrictive Clothing

   Unbutton tight collars, loosen belts, and remove tight garments around the neck, chest, and waist to facilitate easier breathing.

4. Administer Prescribed Medication / Aspirin

   If prescribed, assist the person in taking sublingual nitroglycerin. Alternatively, offer a standard adult aspirin (325 mg) to chew slowly, unless allergic or contraindicated.

5. Monitor Vital Signs & Prepare CPR / AED Emergency

   Monitor breathing and pulse continuously; if the person becomes unresponsive or stops breathing, immediately initiate CPR and use an Automated External Defibrillator (AED) if available.

Treatment

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

• Lipid-Lowering & Anti-Hypertensive Medications medication

  Daily low-dose aspirin or P2Y12 inhibitors (such as clopidogrel) to prevent blood platelets from forming blood clots in narrowed coronary arteries.

• Percutaneous Coronary Intervention (PCI / Stenting) procedure

  A minimally invasive catheter-based procedure using a balloon to inflate narrowed coronary arteries and deploy a drug-eluting stent to restore blood flow.

• Coronary Artery Bypass Grafting (CABG) surgery

  Open-heart surgical intervention creating a bypass route around severely clogged coronary arteries using a vascular graft harvested from the leg or chest.

• Antiplatelet & Anticoagulant Therapy medication

  Daily low-dose aspirin or P2Y12 inhibitors (such as clopidogrel) to prevent blood platelets from forming blood clots in narrowed coronary arteries.

• Supervised Cardiac Rehabilitation Program therapy

  A structured program incorporating physician-monitored cardiovascular exercise, dietary education, stress management, and risk factor modification.

Prevention / protection

• Adopt a Heart-Healthy Dietary Pattern

  Emphasize whole foods rich in soluble fiber, antioxidants, and unsaturated fats—such as vegetables, fruits, legumes, whole grains, nuts, and oily fish—while significantly limiting saturated fats, trans fats, and added sugars.

• Maintain Regular Physical Activity

  Engage in at least 150 minutes of moderate-intensity aerobic exercise (such as brisk walking, cycling, or swimming) per week to promote endothelial function, lower arterial blood pressure, and boost HDL cholesterol.

• Complete Tobacco Cessation & Avoid Secondhand Smoke

  Eliminate active cigarette smoking and avoid exposure to secondhand tobacco smoke to prevent ongoing chemical injury to the arterial endothelial lining and reduce blood clot formation risk.

• Routine Clinical Monitoring of Vascular Risk Factors

  Regularly measure and manage core cardiovascular biomarkers, ensuring blood pressure, LDL cholesterol, triglycerides, and blood glucose (HbA1c) remain within optimal target ranges.

• Healthy Weight Management & Stress Reduction

  Maintain a body mass index (BMI) within the healthy range and incorporate stress-reduction techniques—such as mindfulness, regular sleep schedules, and yoga—to minimize chronic sympathetic nervous system activation.

Diet & lifestyle

Lifestyle

Diet

Things to avoid

• Mediterranean & DASH Heart-Healthy Eating diet

  Focus on a diet rich in vegetables, fruits, whole grains, legumes, nuts, seeds, and extra virgin olive oil while incorporating omega-3 fatty acids from fish like salmon to reduce arterial plaque progression.

• Title: Moderately Intense Aerobic Exercise exercise

  Engage in 30 minutes of moderate aerobic activity (such as brisk walking, swimming, or stationary cycling) 5 days a week following clearance from your cardiologist to strengthen cardiac muscle.

• Stress Reduction & Restorative Sleep lifestyle

  Practice daily relaxation techniques like mindfulness meditation, deep breathing exercises, or gentle yoga, and prioritize 7 to 8 hours of uninterrupted sleep to keep cortisol and blood pressure stable.

• Saturated Fats, High Sodium & Tobacco things to avoid

  Avoid saturated and trans fats, packaged foods high in sodium, excessive alcohol, and all forms of tobacco smoke, which cause endothelial injury, promote vascular constriction, and raise blood pressure.

• Medication Compliance & Regular Check-Ups general advice

  Take all prescribed cardiovascular medications (such as statins, blood thinners, and anti-hypertensives) consistently as directed, and attend routine cardiac follow-ups to monitor arterial health.

FAQs

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