16898 Coronary Artery Disease

Overview

Coronary artery disease is a condition where the blood vessels that supply your heart muscle become narrowed or blocked by a buildup of fatty deposits called plaque. This reduces the flow of oxygen-rich blood to your heart, which can lead to chest pain or a heart attack.

Yes. Coronary artery disease is one of the most common health conditions worldwide, and it is a leading cause of death. But many people live long, active lives with proper treatment and self-care.

It usually affects adults over 45, but younger people can also develop it, especially if they have risk factors like smoking, high blood pressure, diabetes, or a strong family history of heart disease.

Symptoms

Common symptoms

• Chest pain or discomfort, often described as pressure, squeezing, or fullness (angina)
• Shortness of breath, especially during activity
• Fatigue or lack of energy
• Pain that may spread to the arm, neck, jaw, or back

Causes

Main causes

• Atherosclerosis – a process where plaque (fat, cholesterol, and other substances) builds up inside the artery walls, narrowing them over time
• Blood vessel wall damage from high blood pressure, smoke, or diabetes can speed up plaque formation
• Inflammation within the arteries also helps plaque grow

Risk factors

• High blood pressure
• High cholesterol levels
• Smoking or exposure to secondhand smoke
• Diabetes or prediabetes
• Being overweight or obese
• Not being physically active
• Unhealthy diet high in saturated fats and processed foods
• Family history of early heart disease
• Older age, especially men over 45 and women over 55

When to see a doctor

See a doctor urgently if:

• Chest pain, pressure, or discomfort that is new, severe, or lasts longer than a few minutes
• Chest pain along with sweating, nausea, or shortness of breath
• Sudden weakness or fainting

Book a routine appointment if:

• If you have risk factors like high blood pressure, diabetes, or high cholesterol, or a family history of heart disease
• If you have unexplained fatigue, breathlessness on exertion, or occasional chest tightness, do not wait – make an appointment
• As part of regular health checkups, especially if you are over 40

Diagnosis

A doctor will start by asking about your symptoms, medical history, and lifestyle. They will also listen to your heart and check your blood pressure. Based on your risk, they may recommend tests to look at the health of your heart and blood vessels.

Tests that may be done

• Blood tests – to check cholesterol, blood sugar, and signs of heart strain
• Electrocardiogram (ECG) – to measure your heart's electrical activity
• Exercise stress test – to see how your heart responds to physical activity
• Cardiac imaging – like a CT scan or coronary angiogram, to look at blood flow through your coronary arteries

What to expect at your appointment

Your healthcare team will walk you through each test. Many are painless, and you can go home the same day. If tests show narrowing in your arteries, your doctor will discuss treatment options that best suit your situation. Diagnosis is a first step, not a verdict – it opens the door to care.

Treatment

Treatment for coronary artery disease focuses on improving blood flow to your heart, reducing symptoms, and preventing heart attacks. It includes lifestyle changes, medicines, and sometimes procedures to open blocked arteries. Your doctor will create a plan tailored to you.

Self-care at home

• Stop smoking and avoid secondhand smoke – this is one of the most important steps
• Follow a heart-healthy diet low in salt, added sugar, and unhealthy fats
• Get regular physical activity – even a daily 30-minute walk helps
• Take all medicines exactly as prescribed, and talk to your doctor before stopping any
• Learn relaxation or stress-management methods that work for you

Medical treatments

Medicines are a key part of care. They may include treatments to lower blood pressure, reduce cholesterol, prevent blood clots, or widen blood vessels. Anti-anginal medicines help ease chest pain. Always ask your doctor or pharmacist for full information about any medication you are prescribed – never take someone else's heart medicine.

When is surgery considered?

If narrowed arteries are severe or cause unrelenting symptoms, procedures may be needed. These include angioplasty – where a tiny balloon is inflated to widen the artery, often with a small mesh tube called a stent – and coronary artery bypass surgery, which uses a healthy blood vessel to bypass the blocked area. You and your heart team will decide together if a procedure is right for you.

Living with this condition

Living with coronary artery disease means taking an active role in your health. Attend regular checkups, take medications as prescribed, and keep a simple list of your medicines and key numbers like blood pressure and cholesterol. Learn your warning signs and know what to do in an emergency – write down the local emergency number so you never have to search for it.

Lifestyle tips

• Eat more vegetables, fruits, whole grains, beans, and fish
• Swap full-fat dairy and processed meats for leaner options
• Aim for at least 150 minutes of moderate activity each week, as your doctor advises
• Keep a healthy weight if possible – even a little weight loss helps
• Limit alcohol and avoid smoking

Diet and exercise

A Mediterranean-style diet – rich in olive oil, nuts, fish, vegetables, and whole grains – is a good starting point. For exercise, start with gentle activities like walking or cycling. Build up gradually, and always check with your doctor before starting a new exercise routine, especially a vigorous one.

Mental health and emotional wellbeing

It is very common to feel anxious, scared, or low after a heart diagnosis. Stress can raise blood pressure and make symptoms worse. Be kind to yourself – talk to family, friends, or a counselor. There are also cardiac rehabilitation programs that offer emotional support alongside physical training.

Prevention

You cannot change your age or family history, but you can lower your risk through lifestyle choices. Not smoking, staying active, eating well, and managing blood pressure and diabetes are proven ways to prevent or delay coronary artery disease.

Vaccines

Vaccines do not directly prevent coronary artery disease. However, getting vaccinated against flu and pneumococcal disease can reduce the risk of infections that could stress your heart. Ask your healthcare provider which vaccines are recommended for you.

Screening programmes

Routine checkups that measure blood pressure, cholesterol, and blood sugar help catch risk early. If you have a family history of early heart disease, ask your doctor whether you need earlier or more frequent screening. Knowing your numbers is an important first step.

Complications

If left untreated

• Heart attack – a blocked artery that injures heart muscle
• Heart failure – when the heart cannot pump blood well enough to meet the body's needs
• Arrhythmias – irregular heartbeats, which can be serious
• Cardiac arrest – a sudden, life-threatening stopping of the heart

Long-term outlook

The outlook for people with coronary artery disease has improved dramatically with modern care. Many people live decades as active, healthy lives by combining proven treatments with healthy habits. It is a serious condition, but it is also one that can often be managed well with the right team on your side.

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