Coronary Artery Disease - Symptoms and Causes

Coronary artery disease is the disease in which the major blood vessels (coronary arteries) that supply blood, nutrients and oxygen to your heart get damaged or disease stricken. It is mostly caused due to the coronary artery getting plagued or inflamed. The consequent reduction in blood flow to the heart causes the various symptoms of coronary artery disease like angina (chest pain), short breath etc.

Symptoms:

Here is a list of a few symptoms that help in identification of the coronary artery disease.

1. Angina

Pressure or tightness may be felt in or near the area of the chest that results in pain. It is mostly felt in the middle or left side of the chest.

2. Shortness of breath

Another symptom of coronary artery disease is short breath, fatigue and a feeling of exertion.

3. Heart attack

Complete blockage of the coronary artery results in a heart attack that is a prominent symptom of coronary artery disease. A person may feel heavy pressure in the chest, pain in the shoulder or arm, sweating etc. prior to getting a heart attack.

Causes:

Coronary artery disease occurs when damage or injury is done to the inner layer of the coronary artery. This damage causes plaque, which are deposits made of fat, cholesterol and other cellular waste materials to accumulate near the damaged area of the artery. This process is known as atherosclerosis.

The various causes that result in coronary artery damage are listed below.

- Smoking
- High blood pressure
- Diabetes
- High cholesterol
- Obesity
- High stress
- Physical inactivity

Knowing Coronary Artery Disease - Symptoms and Causes

Your heart is the most important and vital organ of all and regulates the flow of heart to all parts of the body. Thus, the valves and the arteries which take the blood to your heart are also an important component in ensuring that the circulation is constant. Thus, any hindrance to this process will put a lot of pressure on your heart and lead to more serious problems in the long run. Coronary artery disease is one such problem and can seriously put the health of your heart at risk.

What is coronary heart disease?
Coronary arteries are very important blood vessels, which carry nutrients, blood and oxygen to your heart. If the level of bad cholesterol is high in your blood, it will start leaving deposits on the walls of the arteries which are commonly known as plaque. This plaque will start building up over time causing blockage of the arteries and disrupting proper blood flow. Excessive build up of the plaque may then rupture the lining of the plaque. This will then induce blood clotting and further prevent the normal flow of blood.

Symptoms
Primary symptoms may include

Shortness of breath: This may occur while you are exercising or performing activities which are mildly exerting.
Heart beats very hard and fast: Your heart may beat very hard and fast, especially when doing everyday activities such as climbing stairs or walking for a prolonged distance.
Angina or chest pain: You may experience pain in your chest as if someone was pressing against it with a lot of force. Angina is also triggered due to stressful activities or even emotional stress. It usually occurs on the left or the middle of the chest and may even be felt in the back, arms, and neck.
Heart attack: Heart attacks are the most common and the most serious complications of coronary heart disease. You would feel extreme pain, akin to crushing on your chest, shoulder, or arm. It may even be accompanied by jaw pain, and sweatiness.
Treatment
Non invasive forms of treatment are always preferable rather than invasive surgeries or procedures to treat coronary heart disease, especially where the risk of serious complications such as heart attack are still on the lower side. Some of the treatments used for coronary heart disease are as follows:

Making lifestyle changes: Quit smoking, reduce alcohol consumption along with consumption of regulated diet will automatically start cleaning plaque that has built up within the arteries. Losing weight also tends to help.
Medications: Special medications can take care of cases wherein the deposits are still lesser and the plaque buildup can be removed without the requirement of extensive surgery. Anti-cholesterol medications are one example of this.
Surgical procedures: These are usually employed when the blockage is severe and cannot be corrected by the conventional methods mentioned above. Some of the procedures are angioplasty, stent replacement, as well as coronary artery bypass surgery.

Coronary Artery Disease -  Know the Primary Signs!

Angioplasty is the procedure of opening a coronary artery blockage with the help of wire balloon and stent. This procedure is done to open the blocked coronary arteries if they are causing symptoms or acute heart attacks.

HOW IT IS DONE?

The procedure is usually done in local anaesthesia. A wrist artery (radial) or a groin artery (femoral) is used to gain access to the coronary artery as is done in angiography. A hollow tube called a catheter is passed upto heart artery and through this, a guidewire is passed across the blockage and over this wire balloon is passed and blockage dilated.

After this balloon is removed and the metallic stent is passed over this wire. The stent is then inflated and it takes its shape of the hollow tube so that the flow in the coronary artery is restored.

WHAT ARE INDICATIONS OF ANGIOPLASTY AND STENTING:

An acute Heart attack is the most definite indication of angioplasty and stenting. At the time of the heart attack, there is an urgent need to restore the blood flow of block coronary artery which is usually not possible with medicines alone. Angioplasty is the most effective and definite way of opening the artery urgently in such situation.

SHOULD ALL BLOCKAGES BE OPENED UP BY ANGIOPLASTY AND STENTING?

NO, all blockages do not warrant this procedure. There is some amount of risk involved in the angioplasty procedure itself. When the risk of blockage is considered more than the risk of opening the artery then the procedure is indicated. Patients who are doing good on medicines may be followed up without angioplasty.

All About Angioplasty!

The heart pumps pure blood to all parts of the body through a network of arteries. These are thicker in the beginning and become finer and thinner as they reach the various organs. These arteries are lined by a layer of epithelial tissues and as blood flows through them, the heavier cholesterol / fat molecules settle down along the walls. 


This attracts more and more fat molecules to settle down.  This is known as atherosclerosis (hardening of the arteries). Over a period of time, the vessels circumference reduces and the blood supply to the target organ reduces. This impacts proper functioning of these organs and when this happens to the major organs like the heart, kidney or the brain, conditions like stroke or thrombosis or heart attack can occur.


This condition, known as coronary artery disease, is becoming a major cause of deaths.  While that is the bad news, the good news is that it is largely lifestyle dependent, and if steps are taken, it can be prevented, and in the early stages, the damage completely reversed.


Preventive measures: 
1. Diet: A low-fat, high-fiber, heart-healthy diet consisting of Omega-3 fatty acids is recommended by doctors, especially to people who are prone to develop heart disease.  This also requires reduced salt, increased unsaturated fats, reduced triglycerides and reduced sugar.  Include loads of fresh fruits and vegetables, whole grains, nuts and seeds and fish oils. Include multivitamins or other supplements after checking with your doctor.


2. Exercise:  Regular exercise in any form increases the efficiency of the circulatory system, keeps the cholesterol levels in check and helps in blood pressure management.  Exercise in any form is advisable, based on individual preference. A moderate physical activity of 30 to 45 minutes per day is advisable.


3. Smoking: This is one of the major risk factors for smoking, and quitting or controlling smoking is one of the best methods to prevent coronary artery disease.


4. Alcohol consumption:  While moderate alcohol consumption is believed to be healthy for the heart, excessive alcohol consumption is a strict no-no.  Binge drinking especially is shown to cause heart attacks.


5. Weight management: Check with your doctor on what is ideal BMI for you and work out a plan to keep your weight under check.


6. Regular medications: If you are on blood pressure or diabetes medications, ensure you do not miss them.  Keep a constant check to ensure your readings are managed well. 


7. Watch out:  Ask your doctor if there are specific symptoms that you need to watch out and seek medical support if you see any of them.


Coronary disease is not treatable fully, but can be prevented and managed effectively to improve the overall quality of life.

Coronary Artery Disease - 7 Ways You Can Prevent it 

The coronary arteries supply the heart with oxygen-enriched blood and nutrients. If these arteries become damaged or diseased; they could cause Coronary artery disease or CAD. Plaque deposits on the walls of the arteries are the most common cause of this disease. This plaque is usually the result of high cholesterol levels. As the plaque builds up, the passage of blood flow is reduced. This reduces the amount of blood that reaches the heart. In cases of a complete blockage, CAD can even cause a heart attack. Because of its slow progression, this disease is often not diagnosed until it reaches a dangerous stage. However, it can be prevented and treated if diagnosed in time.

In the early stages of CAD, symptoms are not very noticeable. Symptoms become visible only when blood flow to the heart reduces and the heart has to pump harder than normal. The most common symptoms experienced include:

Chest Pain: This is also referred to as angina. It may feel like a tightening of the chest or pressure on the chest as though someone is pressing against it. This type of chest pain may be triggered by emotional or physical stress. It is usually relieved within a few minutes of stopping the activity. Women may experience this pain as a sharp, fleeting pain in the back, arm or neck.
Breathlessness: When the heart does not receive enough blood, it has to work harder to pump blood through the body. This may be translated to breathlessness of shortness of breath when performing any type of physical activity. It can also cause extreme fatigue.
Heart Attack: A heart attack is the most severe symptom of coronary artery disease. This is caused by the complete blockage of a coronary artery. A heart attack can occur without any symptoms or be preceded by slight symptoms. The signs of an impending heart attack include pain in the chest and shoulder, shortness of breath and extreme sweating. The chest pain may also travel to the lower jaw. These symptoms are more pronounced in men as compared to women. Women have a higher tendency of experiencing atypical signs such as extreme fatigue.
Other symptoms that might indicate coronary artery disease are dizziness, nausea and an irregular heartbeat. The good news is that this disease can be prevented. Staying physically active, maintaining a healthy weight, reducing stress and eating a low fat and low salt diet can help reduce the risk of CAD.

Coronary Artery Disease (CAD) - What Are The Symptoms?

Coronary artery disease or CAD is the name given to the heart condition in which the major blood vessels that supply your heart with blood, oxygen and nutrients, also called coronary arteries, get blocked, damaged or diseased.

Blockages usually happen when cholesterol-containing deposits called plaque deposit in your arteries. Plaque narrows the lumen of your coronary artery which means your heart gets lesser and lesser oxygen and nutrients to function properly.
Inflammation is also to blame for coronary artery disease.
Common symptoms of CAD include

Angina or pain in the chest
Shortness of breath
If the blockage is complete, you can get a heart attack.
Common Diagnostic tests
When you go to a heart specialist, she will ask questions about your medical history and follow it up with a physical exam and order routine blood and diagnostic tests to confirm CAD like:

Electrocardiogram (ECG): An ECG records electrical signals as they travel through your heart revealing evidence of a previous heart attack or one that s happening. Holter monitoring is a type of ECG where you wear a portable monitor for 24 hours as you go about your normal daily activities. Abnormalities in the results suggest reduced blood flow to the heart signaling CAD.
Echocardiogram: This test uses sound waves to produce images of your heart. It helps your doctor determine whether all parts of your heart wall are contributing to your heart's pumping activity. If certain parts are moving weakly it can mean damage to muscle due to a heart attack or because of receiving too little oxygen- again signaling CAD.
Exercise Stress test: This test is done by making you do exercises like walking on a treadmill or riding a stationary bike during an ECG. Sometimes, medication to stimulate your heart may be used instead of exercise.
This again detects areas in your heart that receive less blood flow.

Cardiac catheterization or angiogram. A special dye is injected into your coronary arteries to observe blood flow through your heart in a test known as an angiogram.
The dye is sometimes also injected into the arteries through a long, thin, flexible tube called catheter that is threaded through an artery in your leg to the arteries in your heart. This procedure is called cardiac catheterization. This test is very good in diagnosing CAD as the dye outlines narrow spots and blockages on the X-ray images of your heart.
Heart scans. Computerized tomography or CT can help your doctor actually see calcium deposits in your arteries that can be narrowing your arteries. If a substantial amount of calcium deposits are found, coronary artery disease could be the reason.
MRI scans are also done to diagnose CAD.

Common Tests For Coronary Artery Disease!

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