Coronary Artery Disease: Symptoms, Causes, Diagnosis, and Treatment

What is Coronary Artery Disease

This category of disease is well known and is referred to as coronary artery disease. It occurs when something, for example, the plaque interferes with the blood supply to the heart. It can raise your chances of a heart attack.

Coronary artery disease (CAD) is a condition that reduces blood flow and oxygen to the heart through impaired arteries. Also known as coronary artery disease (CAD), isolated hypertension is the most extensive type of heart disease and impacts roughly 16 percent of the global population. It has affected over 5 million people over the age of 20.

It is also the biggest killer for both males and females in the globe. According to the recent data that has been collected, approximately a person is said to suffer from a heart attack every 36 seconds. Nonetheless, a heart attack may occur from severe and uncontrolled CAD.

What is meant by Coronary artery disease (CAD)?

Coronary artery disease (CAD) is a condition that affects blood vessels through a process that narrows or blocks the coronary arteries that feed a heart. This occurs due to the fact that gradually, such substance as cholesterol or plaque compromises the access of blood to the muscles of your heart.

Many people can have CAD for many years and not know it until they one day develop a heart attack. Thus, CAD is known as a “silent killer.” CAD is sometimes referred to as coronary artery disease (CAD), coronary heart disease (CHD), or ischemic heart disease. It is also what most people refer to when they describe the general term heart disease.

Coronary artery disease types

There are two main forms of coronary artery disease:

• Stable ischemic heart disease: This is the chronic form of the disease. While it takes several years for the process to develop, your coronary arteries gradually become narrower. Eventually, the heart is supplied with less oxygen-rich blood. Such symptoms as may be present can be managed and you still lead a normal life with this disease.
• Acute coronary syndrome: This is the sudden form that’s a medical emergency. The plaque degenerates and ruptures within your coronary artery and forms a clot that prevents blood from reaching your heart. This abrupt blockage leads to a heart attack.

What are the symptoms?

You may not develop any signs or symptoms of coronary artery disease for an extended period. It is important to remember that plaque formation is a process that may take many years, sometimes even decades. However, as the arteries get blocked, then you begin to experience minor signs and symptoms. These symptoms indicate the heart is working harder in order to supply oxygenated blood to various parts of the body.

Symptoms of chronic CAD include:

• Stable angina: This is the most frequent sign, but it may be mistaken for various other diseases that are not contagious. Stable angina refers to chest pain or discomfort that occurs predictably in relation to physical activity or other specific factors. It is commonly felt during exercise or times of stress or anxiety. It disappears when you lie down or when you take nitroglycerin which is a drug used to treat angina.
• Shortness of breath (dyspnea): Sometimes people experience shortness of breath while performing activities that are not demanding at all.
• It is crucial to emphasize that the first sign of coronary artery disease can sometimes be a heart attack.

Risk factors for coronary artery disease

There are various causes of CAD and the most prevalent is atherosclerosis, which is a vascular injury with cholesterol plaque formation in the arteries. This is because normal blood circulation might be impaired whenever one or several of these arteries get blocked partly or fully.

Other less frequent causes of injury or obstruction to a coronary artery also restrict the supply of blood to the heart. Some risk factors for coronary artery disease are inherited, but others have no relation to your family medical history. This simply means that the decisions that one makes throughout his or her day sum up to the total risk of CAD.

How is CAD Diagnosed?

The diagnosis of CAD involves taking a medical history of a patient, physical assessment and other necessary tests. These tests include:

• Electrocardiogram: This test records the electrical activity of your heart. This might assist your doctor in identifying whether you have had a heart attack.
• Echocardiogram: It is a noninvasive imaging test that uses sound waves to generate a visual image of the heart. What this test shows you is whether some things in your heart are working the way they should.
• Stress test: This specific test assesses the strain on your heart when you are exercising as well as when you are relaxed. The test records the electrical functions of the heart when the patient exercises under the supervision of the medical team on a treadmill or when cycling on a stationary bike. Nuclear imaging or echocardiographic imaging may also be done for a part of this test. That is why, for those people who are unable to perform exercise, there are medications for stress testing.
• Cardiac catheterization (left heart catheterization): In this process, the doctor makes use of a catheter which is placed in the bloodstream from the groin or the wrist and injects a special dye into the coronary arteries. The dye makes your coronary arteries show up more clearly on a radiographic image to see if there are blockages.
• Heart CT scan: This imaging test can be used by your doctor to determine if you have deposits of calcium in your arteries.

How is Coronary Heart Disease Treated?

There is no known cure for CAD, but a person can live a healthy life with proper care. This often entails implementing changes such as smoking cessation, proper nutrition, and daily exercise or physical activity. Doctors may also prescribe some drugs used in managing CAD with the view of preventing it from worsening. Nevertheless, some people may need to undergo various medical procedures.

Medications

Some drugs can lower your chance of developing the condition and alleviate some of the symptoms of coronary artery disease. Your provider may prescribe one or more medications that:

• Lower your blood pressure.
• Lower your cholesterol.
• Stable angina, for instance, nitroglycerin and ranolazine.
• Avoid blood clot formation as much as you can.

Procedures and surgeries

Some people need a procedure or surgery to manage coronary artery disease, including:

• Percutaneous coronary intervention (PCI): Known also as coronary angioplasty, this is a minimally invasive procedure to treat clogged blood vessels. Your provider performs a procedure to reopen the blocked artery to ensure better blood circulation. They may also put a stent in place, so that the artery does not close again.
• Coronary artery bypass grafting (CABG): This surgery involves the following, where a new passage is made for the blood to pass instead of going through blockages. This “detour” helps increase blood flow to your heart. CABG is needed for those who have serious stenosis in several coronary arteries.

Also Read – Heart Surgery Cost in India

Is it possible to prevent coronary artery disease?

Coronary artery disease is not always avoidable as some factors are hereditary. But you can lower your risk of coronary artery disease and help prevent it from getting worse in these ways: 

• Pledge to stop smoking and all tobacco product usage.
• Eat heart-healthy foods.
• Get enough sleep.
• Maintain your body weight to an ideal level that is recommendable for whoever you are.
• Find out your risk and coronary disease.
• Limit alcohol use.
• Move around more.
• Keep taking your medications.

Take Away

Learning about your diagnosis of coronary artery disease can evoke a range of emotions. It is natural to feel confused or even regretful about the circumstances leading to this condition. However, it is crucial to focus on the present and future. Release any feelings of guilt or self-blame, and instead, concentrate on creating a proactive plan to improve your heart health, starting today.

Collaborate with your healthcare provider to implement lifestyle changes that are realistic and sustainable for you. Educate yourself about available treatment options, such as medications, and how they can benefit your heart. Share your goals with your loved ones and seek their support. Remember, while this journey is yours to take, you do not have to navigate it alone.