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Heart Condition

Coronary Artery Disease

Coronary artery disease (CAD), also known as atherosclerosis, is the narrowing or blockage of the coronary arteries, the blood vessels that supply the heart muscle. It is caused by a build-up of fatty and calcium deposits known as plaque. CAD is the leading cause of angina and heart attack.
Medically reviewed by Dr Lee Chee Wan, Senior Consultant Cardiologist / Last updated 21 May 2026
Angiogram showing coronary artery narrowing.
Angiogram showing coronary artery narrowing.

01Symptoms

Common signs and symptoms associated with Coronary Artery Disease include:

  • Chest pain, tightness or pressure (angina), often on exertion
  • Breathlessness, often on exertion
  • Pain spreading to the arm, neck or jaw
  • Unusual fatigue
  • Cold sweat, nausea or light-headedness
  • A heart attack may be the first sign in some people and some may have no symptom

02Causes & Risk Factors

  • High cholesterol
  • High blood pressure
  • Smoking
  • Diabetes
  • Family history of heart disease
  • Physical inactivity, obesity and an unhealthy diet
  • Male gender
  • Advancing age

03When To See A Cardiologist

Arrange a cardiology assessment if you experience chest discomfort or shortness of breath on exertion, or have several risk factors for heart disease. Sudden, severe or prolonged chest pain at rest, especially associated with cold sweat or nausea, is a medical emergency. Call 995 immediately.

04Treatment Approaches At CCI

Management combines lifestyle change, medications to control risk factors, and where significant blockages are found, procedures such as percutaneous coronary angioplasty (PCI) or, in selected cases, coronary artery bypass surgery. CCI provides accurate diagnosis through CT coronary angiography and coronary angiography, and a clear treatment plan.

05Diagnostic Tests & Procedures

Tests and treatments Dr Lee may recommend for this condition:

Common Questions

Frequently Asked Questions

Can coronary artery disease be reversed?

While established plaque cannot be fully removed, its progression can be slowed or halted, and risk dramatically reduced, with medication and lifestyle change. In early disease, some soft plaques can be reversed with aggressive management.

How is CAD diagnosed?

CAD is assessed using tests such as a treadmill stress test (often with echocardiogram), CT coronary angiogram, calcium scoring or invasive coronary angiography, depending on your symptoms and risk profile.

Get A Specialist Heart Assessment

Early diagnosis makes a real difference. Book a consultation with Dr Lee Chee Wan at Cardiac Centre International.

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