Coronary Artery Disease (CAD) is one of the most common and deadly heart conditions worldwide, especially in India. Despite its high prevalence, there are still many myths, questions, and misunderstandings around CAD. This FAQ-style blog aims to answer the most frequent questions Indian patients have about coronary artery disease in simple, clear terms.
What Is Coronary Artery Disease?
CAD occurs when the coronary arteries—the vessels that supply oxygen-rich blood to the heart muscle—become narrowed or blocked due to a buildup of plaque (atherosclerosis).
Key Facts:
- Plaque is made up of cholesterol, fat, calcium, and other substances
- The buildup restricts blood flow to the heart muscle
- Over time, this can lead to angina (chest pain), heart attacks, or heart failure
Learn more about related risks in Heart Attack vs Cardiac Arrest: Know the Life-Saving Difference.
What Causes CAD?
There’s no single cause. CAD is the result of a combination of genetic, lifestyle, and environmental factors.
Major Risk Factors:
- High blood pressure (hypertension)
- High cholesterol (especially LDL)
- Smoking and tobacco use
- Diabetes or prediabetes
- Sedentary lifestyle
- Obesity or overweight
- Poor diet (high in saturated fats, low in fibre)
- Stress and poor sleep
Read more about the role of Smoking and Heart Health: The Irreversible Damage You’re Ignoring.
What Are the Symptoms of CAD?
Many people have CAD for years without symptoms. When symptoms appear, they usually include:
- Chest pain or pressure (angina)
- Shortness of breath
- Fatigue during physical activity
- Heart palpitations
- Dizziness or nausea
These symptoms are often brushed off, especially in Indian settings. Learn about 10 Early Signs of Heart Problems You Should Never Ignore.
How Is CAD Diagnosed?
Doctors may recommend a combination of the following tests:
- ECG (Electrocardiogram): Checks for irregular heart rhythms
- Echocardiogram: Uses ultrasound to show heart structure and function
- TMT (Treadmill Test): Evaluates heart function under physical stress
- CT Coronary Angiogram: Non-invasive scan of coronary arteries
- Coronary Angiography: Invasive test that visualizes artery blockages
For more on angiography, read Angiography: What Patients Should Know.
What Is the Treatment for CAD?
Treatment depends on the severity of the disease.
Lifestyle Changes:
- Adopt a heart-healthy diet (low saturated fat, high fibre)
- Exercise 30 minutes a day, 5 days a week
- Quit smoking and reduce alcohol intake
- Practice stress management through yoga or meditation
Medications:
- Statins (to lower cholesterol)
- Blood thinners (aspirin or clopidogrel)
- Beta-blockers (to control heart rate)
- ACE inhibitors or ARBs (to manage blood pressure)
Procedures:
- Angioplasty and stenting: Opens blocked arteries
- Coronary artery bypass grafting (CABG): Bypasses blocked arteries
- Pacemaker or ICD (in severe arrhythmias)
Explore Pacemakers: What They Do and Who Needs One.
Is CAD Reversible?
While you can’t completely reverse CAD, early intervention can stop its progression and even slightly reduce plaque buildup through lifestyle and medication.
Is CAD Hereditary?
Yes, genetics do play a role. If your parents or siblings have had heart disease, your risk increases. However, healthy lifestyle choices can still dramatically reduce your personal risk.
How Does Diabetes Affect CAD?
Diabetes accelerates plaque buildup in arteries, doubling the risk of CAD.
If You’re Diabetic:
- Monitor blood sugar regularly
- Choose high-fibre, low-glycemic foods
- Exercise regularly
- Maintain healthy blood pressure and cholesterol levels
For more, read Diabetes and Heart Problems: A Silent Threat.
Do Women Experience CAD Differently?
Yes. Women often have non-classic symptoms such as fatigue, jaw pain, indigestion, or nausea rather than chest pain.
How Often Should You Get Checked?
If you are over 30 and have one or more risk factors, you should:
- Get annual lipid profiles and ECGs
- Monitor blood pressure and blood sugar
- Undergo a stress test if symptoms appear
Check out Why Every Indian Over 30 Should Get a Heart Health Check-Up.
Can Stress or Pollution Trigger CAD?
Yes. Chronic stress increases inflammation and blood pressure, while urban air pollution damages blood vessels and raises CAD risk.
Read Heart Health and Air Pollution: Breathing Easy in Urban India.
Final Thoughts
Coronary Artery Disease is preventable and manageable if detected early. With lifestyle changes, routine check-ups, and the right medical care, you can live a long and healthy life—even with CAD.
Take action now. Know your risks. Consult your cardiologist.