Thursday, December 17, 2009

Heart Attacks Risk Factors

heart healthy


The American Heart Association and other medical experts say the body likely will send one or more of these warning signals of a heart attack:

* Uncomfortable pressure, fullness, or Squeezing pain in the center of the chest lasting more than a few minutes.
* Pain spreading to the shoulders, neck or arms. The pain may be mild to intense.
* Chest discomfort with light headed ness, fainting, sweating, nausea or shortness of breath.
* Anxiety, nervousness and / or cold, Sweaty skin.
* Paleness or pallor.
* Increased or irregular heart rate.
* Feeling of impending doom.

Heart Attack Risk Factors:

You are male.
Smoke.
Are overweight.
Have high blood pressure.
Have high blood cholesterol.
Your close relatives have suffered heart attacks

The CAUSE Of HEART Attacks

The CAUSE Of HEART Attacks

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The CAUSE OF HEART Attacks (medical term: myocardial infarction) is blood vessels that feed your heart being blocked by cholesterol deposits. Cholesterol is a fatty substance.

Your heart is a muscle which pumps blood around your body. Like the rest of the muscles of your body the heart needs blood to nourish it. It gets this by tapping off some of the blood it pumps to your body through some blood vessels around itself. High blood cholesterol levels of these choke vessels by depositing in them. A heart attack happens when your heart can no longer get enough blood and the heart muscle suffocates to death. This is called myocardial infarction and can be seen by characteristic electrical changes on ECG

Aortic Stenosis, Its Symptoms and Cure

Aortic Stenosis, Its Symptoms and Cure
heart healthy

Aortic stenosis is the narrowing of the hearth, AOS aortic valve. The heart has four valves and four Chambers. The blood circulates coming from the Atria found in the heart, upper AOS Chambers. Then it flows through the valves in the lower Chambers.

Aortic stenosis happens when the narrowing of the valves become very significant that it impedes the blood flow from the heart, AOS left ventricle into the arteries. Studies had shown that this condition is a lot common in men than it is in women.

Aortic stenosis occurring in adults is caused by three conditions. First off, it can be congenital. The bicuspid valves could have undergone a progressive damage since birth. Secondly, the natural aging process may accelerate the heart, AOS ongoing wear and tear. This is especially true in elderly people. And Lastly, the scarring of the heart, AOS may cause aortic valve, aortic stenosis. This can happen to both young and old people alike.

People suffering from aortic stenosis may complain of multiple instances of chest pain and shortness of breath. There may also be instances that they would faint for no apparent reason at all. In the most advanced cases of aortic stenosis, death is a possibility. And it happens after extraneous effort exertion, such an episode of rigorous exercise.

To diagnose aortic stenosis, doctors use an EKG or electrocardiogram. This procedure effectively records the heart, AOS activities. Doctors then would know what the exact condition of the heart is and where the real problem lies. Aside from an EKG, chest x-ray is also used. It captures a picture of the heart, AOS shadow. That picture will show the dilation of the heart. It may also show the parts where tissue might be damaged. An ultrasound is also performed. This is procedure is called echocardiography and it is used to obtain useful images of the Chambers of the heart, the valves, and all other Organs and structures that surrounds it.

Aortic stenosis has to be observed before treatment is carried out. Mild cases of aortic stenosis do not require treatment just yet. Instead, the condition is Monitored and its symptoms are evaluated further. If aortic stenosis is on a moderate case, strenuous activities are Decided against. These include weight lifting and sprinting. It is also a must that people with moderate aortic stenosis be Examined and evaluated annually by a cardiologist.

For the most severe cases, cardiac Catheterization is done. That, along with appropriate medical therapy and using diuretics is prescribed. If all else fails, then a surgery encompassing the total replacement of the aortic valves put in place. Extremely durable Prosthetic mechanical valves replace the natural ones and they are expected to last anywhere between 20 and 40 years.

Aortic stenosis may develop a round of complications if left untreated. For one, it can cause the left ventricle of the heart to be enlarged. This is because the left ventricle has an overload of work as it pushes the blood through a narrowed valve.

Observed for any possible symptoms of aortic stenosis, it is a must that a health care provider is consulted. If not, the case will progress and a new set of symptoms might develop. And all the symptoms already present would get worse over time.

To prevent aortic stenosis, all the underlying causes like rheumatic fever and other heart conditions have to be attended to first. But in essence, aortic stenosis is really hard to prevent. In fact, it may not be preventable at all. On the lighter side though, its complications can be regulated.

People who are diagnosed with this disease have to notify their respective health care providers, including their dentists of the history of their heart condition. All dental procedures may introduce bacteria into one, AOS bloodstream. And that could be fatal to people with heart problems like aortic stenosis

Tuesday, December 1, 2009

HEART

The heart (Latin, cor) is a hollow, hollow, muscular organ that pumps blood through blood vessels by repetitive rhythmic contractions. The term cardiac means associated with the heart, from the Greek cardia to the heart. The heart is one organ that plays a role in the circulatory system.

heart

Heart Surface

The size of the human heart more than a fist-sized adult male. The heart is a muscle that consists of a single layer of endothelium. Located in the heart of Thoracic cavity, behind the breastbone / sternum. Cardiac structure and turned down a little to the left.

The heart is almost completely surrounded by the lungs, but covered by a double membrane called the pericardium, which is attached to the diaphragm. The first layer is closely attached to the heart, whereas the outer layer is more loose and watery, to avoid friction between organs in the body that occurs because the constant pumping motion of the heart.

The heart kept in place by the blood vessels including the heart region of uniform / flat, like at the bottom and the side. Two lines pembelah (formed from the muscle) on the outer layer of the heart show where the partition between the left and right of the foyer (the atria) & chamber (ventricle).
[edit] Internal Structure of Heart

Internally, the heart is separated by a layer of muscle divided into two parts, from top to bottom, the two pumps. Both these pumps since birth was never connected. Hemisphere consists of two cavities separated by a wall of the heart. It can be concluded that the heart consists of four cavities, the porch right & left and right & left chambers.

Porch wall much thinner than the walls of the booth as the booth must resist the force of gravity to pump from the bottom up, especially in the aorta, to pump throughout the body that blood vessels. Two pairs of cavities (chambers and the hall simultaneously) on each side of the heart are connected by a valve. Valve between the right hall and chambers called the right of the valve or valves trikuspidalis leaf three. While the valve between the left hall and left room called the valve or valves mitralis bifoliate.
[edit] How it Works Heart

At the time of pulsing, each room and filled the heart relaxes the blood (called diastole). Furthermore the heart contracts and pumps blood out of the heart (called systole). Both the porch to relax and contract simultaneously, and both chambers also relax and contract simultaneously.

Blood is running out of oxygen and contains a lot of carbon dioxide (dirty blood) of whole body venous flow through the two encouraged (vena cava) to the right into the foyer. After the right atrium fills with blood, he would push the blood into the right chamber.

Blood from the right chamber will be pumped through the pulmonary valve into the pulmonary artery, leading to the lungs. Blood will flow through very small vessels (capillaries) that surrounds the air bag in the lungs, absorbing oxygen and releasing carbon dioxide which then exhaled.

Blood rich in oxygen (clean blood) flow in the pulmonary vein to the left of the foyer. Circulation between the right side of the heart, lungs and the left atrium called the pulmonary circulation.

Blood left in the hall will be driven toward the left room, which will then clean the blood pumping through the aortic valve into the aorta (largest artery in the body). This oxygen-rich blood available to the entire body except the lungs.
 
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