Quick Answer
Coronary Artery Disease (CAD) is a condition where the major blood vessels that supply the heart muscle become narrowed or blocked by a buildup of plaque (cholesterol and fatty deposits). Some people may have no symptoms at all, while others may experience chest pain (angina), breathlessness, fatigue, or a heart attack.
A diagnosis of coronary artery disease does not automatically mean your life is over, and it does not mean a heart attack is inevitable. Treatment and follow-up depend on the severity of the blockages, your heart function, symptoms, and other health conditions.
So, if you have just been diagnosed, the most important question is not simply, “How serious is this?” It is: “What is the extent of the disease, what are my risk factors, and what should I do next to protect my heart?”
Introduction
When I tell a patient that they have coronary artery disease, one of the first questions I often hear is, “Doctor, what does this mean for my life? Am I going to have a heart attack?”
That reaction is understandable. Anything involving the blood supply to the heart can immediately create fear.
But a diagnosis is not the same thing as a prediction of your future.
Think of your heart as a pump that works continuously, every minute of every day. To do this, the pump needs its own reliable fuel supply, which is delivered by the coronary arteries. When these pipes become narrowed, we use the term coronary artery disease. The important point is that this condition develops over time and can be managed.
The first step is therefore not panic. It is understanding exactly what has changed in your blood vessels and why.