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!

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!

Carotid artery disease occurs when an oily, waxy substance called plaque builds up inside the carotid arteries. These are arteries that supply oxygenated blood to your brain, face, scalp, and neck.
Carotid artery disease is very serious as it can cause a brain stroke. It, in fact, starts with damage to the inner layer of the carotid artery. To stem this damage your body starts a healing process and this leads to a build up of plaque at the point where the artery is damaged.

When this plaque ruptures, platelets are rushed in and these create an obstruction to the flow of blood to the brain. When the blood supply to the brain is cut off, which happens in carotid disease, the brain cells begin to die causing a stroke. This neural death impairs the parts of the body that these brain cells control. So, you can get paralyzed, become speech or vision impaired, have long  term effects like paralysis or even die due to a stroke.

Causes of carotid disease

Smoking
High cholesterol levels
High blood pressure
High levels of sugar in the blood due to diabetes
What s even more worrisome is that carotid artery disease may not cause any signs or symptoms until the carotid arteries are severely narrowed or blocked. And what usually happens is that a stroke becomes the first sign of the disease.

How scary is that?
So, the next question that comes to the mind is - Can this condition be cured? Let s learn more about management and prevention of the same-

Prevention
Lifestyle changes are key. Since hypertension, uncontrolled diabetes, sedentary lifestyles and imbibing too much fat are all risk factors, taking care of them minimizes the risk of carotid disease and strokes. Heart healthy lifestyle changes that include moderate exercise are a great way to prevent carotid disease.

Treatments
Treatments for carotid artery disease include:

Medicines: Sometimes lifestyle changes do not stem the rot. You need medicinal help. Doctors usually prescribe statin medications to control your cholesterol levels. These lower the bad cholesterol that can narrow your carotid arteries and cause brain strokes and damage. Statins are usually prescribed for people who have:

Heart disease
Those who ve had a stroke
Diabetes
High LDL or bad cholesterol levels
Medicines like Aspirin and Clopidogrel to prevent blood clots are the mainstay treatment if you suffer from carotid disease. They prevent platelets from clumping together inside your carotid arteries and forming blood clots. Apart from these, your doctor may also medicate you for conditions that can damage your carotid arteries and cause strokes. These medicines are for lowering your BP, blood sugar levels, preventing the formation of blood clots anywhere in your body including inside your heart, and preventing and reducing inflammation.

Medical Procedures
These are used to open narrowed or blocked carotid arteries.
The two common procedures are:
Carotid endarterectomy: It s mainly for people whose carotid arteries are blocked 50 percent or more. In this, the inner lining of the carotid artery that is blocking blood flow is removed.
Carotid artery angioplasty and stenting: Here, doctors use a procedure called angioplasty to widen the blocked carotid arteries and restore blood flow to the brain. A stent is inserted into your carotid artery to broaden the lumen. 

High Cholesterol Level - Can It Cause Carotid Disease?

If you thought that chest pain occurred only due to a heart-related issue like a heart attack, you are wrong. Chest pain is one of the most common reasons that people visit the emergency services and it can be caused due to problems with your heart, lungs and digestive system. 

Chest pain can be due to either of these two main reasons:

Heart- related Issues

1. Heart attacks called myocardial infarctions are very common reasons for chest pains. During a heart attack, the blood supply that serves the heart with oxygen is cut off due to plaque build-up in heart arteries causing the death of heart muscles. 

Other reasons for heart attacks are blood clots or torn blood vessels. 
Not all people having a heart attack have symptoms. Usually, people report symptoms like chest pain, upper body pain, nausea, sweating, fatigue, and trouble breathing.
A heart attack is a serious medical emergency for which immediate care is needed.
2. Angina pectoris is a type of chest pain that results from reduced blood flow to the heart. Low blood flow means your heart doesn t get enough oxygen. The angina pain is often triggered by physical activity or emotional stress and feels like a vice squeezing your chest or a heavy weight on your chest. It can also spread from your chest to your neck, arms, and shoulders. Other symptoms are fatigue, dizziness and nausea and these normally last up to 15 minutes only.

3. Unstable angina which causes crushing chest pains suddenly and even when you are not doing anything strenuous is a medical emergency as it can lead to a heart attack. This usually shows that your heart, arteries are narrowing alarmingly.

4. Other heat-related reasons for chest pains are-

Mitral valve narrowing or stenosis
Heart arrhythmias
Coronary Artery disease
Inflammation of heart muscles or pericardium and weakening of the heart muscles. 
All of these are emergencies and need immediate medical attention to prevent a fatality.

Not Heart- related:

1. Lung conditions like Pneumonia, Bronchitis, Pulmonary embolism. 

Pneumonia is an infection in one or both lungs caused by fungi, bacteria, or viruses. It causes inflammation in your lung s air sacs and makes them full of pus which makes it difficult to breathe and causes chest pains, amongst other debilitating symptoms.
Bronchitis is an inflammation of your bronchial tubes. It can be chronic or acute and it can cause a cough with mucus and chest pains. 
Pulmonary embolism is a blood clot that occurs in the lungs. It can go on to damage parts of your lung due to limited blood flow. Apart from this, it can also decrease oxygen levels in the blood and affect other organs. 
It can be life-threatening due to permanent lung damage. The most common symptom of a pulmonary embolism is gradual or sudden shortness of breath. 

There is also- 

bluish skin tone 
anxiety
fainting
hest pain that extends into your arm, jaw, neck, and shoulder
lightheadedness
2. Rib cage inflammation or Costochondritis is also known as Tietze s syndrome. It is an inflammation of the cartilage in the rib cage. Patients experience chest pain in the upper and middle rib area on either side of the body due to this. The pain can also radiate to the back or the abdomen, getting worse if you move, stretch, or breathe deeply.

3. Food pipe disease or Esophagitis is any inflammation or irritation of the oesophagus, a tube that sends food from your throat down to your stomach.

Common causes of food pipe disease are acid reflux or GERD and bacterial or viral infections. 

GERD- This condition occurs when the stomach contents and acids back up into the oesophagus. This causes chest pain that can mimic a heart disease. There may also be oesophagal spasms due to GERD.

Chest Pain - Reasons and Treatment

The new epidemic that has taken the world by storm is obesity. The proportion of obese people is increasing and the age of onset of obesity is decreasing gradually.

There is an optimal weight for a given height of a person. Obesity is when a person's weight is 20% more than the optimal weight. It brings with it a host of other health conditions, as it impairs the body s overall functioning.

Diabetes 2: In a normal person, food gets broken down into glucose to provide the required energy for the body using insulin. The body s inability to produce sufficient insulin to convert the excessive amount of sugar in the body leads to diabetes. Growing to be a leading cause of early death, diabetes brings with it a host of complications affecting almost all systems and parts of the body including stroke, kidney disease, blindness, and death. Diabetes and obesity have a direct correlation and can be prevented and managed by eating a balanced diet, losing weight, exercising, and having a healthy lifestyle.

Heart problems: An increased BMI also ups the risk for coronary heart disease (CHD), where the blood vessels are narrowed due to constant accumulation of fat in their inner walls. This gradually reduces the blood flow through these and may when complete cut-off happens, it could result in heart attack or stroke, affecting the heart or the brain. There could also be cases where the heart fails to pump sufficient blood to the rest of the body, affecting their effective functioning. Obese people also have a higher blood pressure than people who maintain a good BMI.

Breathing problems: One of the main causes of labored breathing is excessive weight. The condition called sleep apnea which is sudden bouts of absence of breathing during sleep is very high in obesity. It can cause snoring, daytime sleepiness, increase the risk of heart disease and stroke. In people with sleep apnea, weight loss is one of the first and most recommended therapies. Asthma and general breathing disorders are also higher in obese people.

Abnormal body cholesterol: Obese people also tend to have abnormally higher levels of body fat, especially the bad cholesterol, which again leads to coronary disease. It is a vicious cycle with one leading to the other and aggravating the other.

Osteoarthritis: Added weight leads to pressure on the hips, knees and lower back. There is added wear and tear and pain, which further limits movement.

Cancer: Some cancers, of the colon, endometrium, kidney, pancreas, gallbladder, breast and esophagus are more prevalent in obese people.

These are just some, there are more. The best way to avoid all these is to watch your weight.

Obesity - How It Increases Your Risk of Different Diseases?

The news of Sridevi's sudden and unexpected demise was a shock for the entire nation and left a number of questions in the minds of the people. However, there are multiple reasons which are under speculation and can be attributed to her death - cardiac arrest, heart attack and death due to accidental drowning. Usually, cardiac arrest and heart attack are two things which most people use interchangeably, however, there is a big difference between the two. 

Difference between cardiac arrest and heart attack: 
A cardiac arrest is far deadlier considering that it comes without a warning or any prior indication of a problem. Here, the heart just stops beating and immediate first-aid can make a lot of difference between life and death. Electrical shock is the best way to revive a patient and should be given within a few minutes of such an arrest. 

On the other hand, a person suffers a heart attack when there is a blockage in the artery which prevents the smooth flow of oxygen-rich blood from reaching the heart. It is important to note that unlike a cardiac arrest the signs of heart attack start slow and persists for long. 

A heart attack is one of the common causes of cardiac arrest, but not always it is the case. A cardiac arrest happens most commonly when the heart is receiving more than 300 impulses per minute or due to absent electrical impulses. In the first instance an electrical shock is a lifesaving technique and in the second, the patient can be treated with certain medications and a temporary pacemaker. 

Symptoms of cardiac arrest:
The symptoms of cardiac arrest are immediate and extreme.

A fainting spell or a sudden collapse
Loss of consciousness
No pulse or breathing 
Symptoms of a heart attack 

Discomfort along with chest pain 
Shortness of breath
Nausea with vomiting
Sweating
Headache and jawpain
Prevention of a cardiac arrest:
What makes this a deadly condition is that you cannot tell your risks of having one and therefore the next best thing to do is to lower your risks. 
The best way to do that is to:

Follow a diet that is balanced and nutritious
Alcohol should be consumed in moderation 
Quit smoking
Stay physically active
How can you prevent a heart attack?

Keep yourself fit and exercise regularly
Keep your cholesterol level under check 
Limit your alcohol intake 
If you are obese, control your weight
Intake a heart-friendly diet.
Now that the distinction is clear between the two, it is recommended that everyone should get themselves screened for potential heart problems on a regular basis. In case of a query or concern consult an expert and get your answers. 

Cardiac Arrest And Heart Attack - Understanding The Difference Between The Two!

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