Heart Health

Coronary Artery Disease
Explained

Coronary Artery Disease (CAD) is a common but serious condition where the coronary arteries, responsible for supplying blood to the heart muscle, become narrowed or blocked. This narrowing is typically caused by a buildup of plaque (cholesterol, fat, and other substances) in the artery walls, a process known as atherosclerosis. When blood flow to the heart is restricted, it can lead to chest pain (angina), shortness of breath, or even heart attack. CAD is a leading cause of death worldwide and is often associated with lifestyle factors such as poor diet, lack of exercise, smoking, and stress. However, genetic predisposition, age, and other health conditions like diabetes and high blood pressure can also increase the risk.

CAD is a leading cause of death worldwide and is often associated with lifestyle factors such as poor diet, lack of exercise, smoking, and stress. However, genetic predisposition, age, and other health conditions like diabetes and high blood pressure can also increase the risk.

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Diagnosis

Diagnosing CAD involves a variety of methods to assess the condition of the heart and arteries:
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1
Physical Exam and Medical History:
The doctor will evaluate symptoms, lifestyle, and family history to identify risk factors.
2
Electrocardiogram (ECG/EKG):
Measures the heart’s electrical activity to detect abnormal rhythms or past heart attacks.
3
Stress Test:
Determines how well the heart functions under physical stress, often performed on a treadmill.
4
Echocardiogram
Uses ultrasound to visualize heart structures and detect areas with reduced blood flow.
5
Physical Exam and Medical History:
A more detailed test where dye is injected into the coronary arteries, followed by X-rays, to see blockages.
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Treatment

Treatment for coronary artery disease can vary depending on the severity of the disease and aims to improve blood flow, reduce symptoms, and prevent complications:

Lifestyle Modifications

Eating a heart-healthy diet, quitting smoking, exercising regularly, and managing stress are key first steps.

Medications

These may include cholesterol-lowering drugs (statins), blood pressure medications, aspirin to reduce clotting risk, and nitroglycerin to relieve angina.

Coronary Artery Bypass Grafting (CABG)

In severe cases, surgery may be required to create new pathways for blood to flow around blocked arteries using a vessel from another part of the body.

Angioplasty and Stent Placement

In this procedure, a catheter with a small balloon is inserted into the blocked artery. The balloon is inflated to open the artery, and a stent (a small metal mesh) may be placed to keep it open.

When to See a Doctor

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If you experience symptoms such as chest pain, tightness, shortness of breath, or any unusual fatigue—especially during physical exertion—it’s crucial to consult a doctor. Early diagnosis and intervention can greatly reduce the risk of complications, including heart attacks.

Additionally, if you have a family history of heart disease or other risk factors (such as high cholesterol, diabetes, or high blood pressure), regular check-ups can help catch CAD early, even if symptoms are not present.

For further questions or personalized advice on heart health, consult a healthcare provider.