The organ has four chambers: two atria (upper chambers) and two ventricles (lower chambers). Within the right atrium, a group of cells known as the sinoatrial node generates electrical impulses. These impulses spread throughout your atria, causing them to contract. As the contractions cause blood to move from the atria into the ventricles,

the impulses travel to the atrioventricular node. This is another group of cells that sits between the ventricles and atria. Once the ventricles fill with blood, the impulses move from the atrioventricular node through the ventricles, causing them to contract.

Atrial fibrillation is a heart disorder, most often found in older adults. During atrial fibrillation, the heart's two small upper chambers quiver rather than beating effectively. As a result, blood isn't pumped completely out of the chambers, so it can pool and clot.

In reality, the electrical signal is short circuiting and bypassing the atrium by heading straight to the AV Node from the SA Node where it is generated. Sometimes, the disease is caused by the SA Node not generating the electrical signal because it has become damaged in some way, but the result is the same - atrial fibrillation.

Picture the heart as two sets of twin chambers sitting on top of each other. The larger chambers are at the top and the smaller chambers are at the bottom - the upper chambers are known as atria (atrium singular) and the lower ones are ventricles. An atrium receives blood into the heart and it has the job of pushing blood into the smaller ventricles which in turn, powerfully contract to expel the blood from the heart and around the body.

In order to understand how the maze procedure works, it's important to first understand what atrial fibrillation is, and the problems it causes. Your heart is comprised of atria (upper chambers) and ventricles (lower chambers). A group of cells called the sinus node is located in the right atrium. It functions like a pacemaker. It generates an electrical impulse that tells the atria and ventricles to contract. In doing so, it generates a heartbeat.

Certain lifestyle habits such as cigarette smoking is mainly responsible for chronic bronchitis. People who live in highly polluted atmospheres also fall prey to this disorder. The above-mentioned factors weaken the lungs and the body's immune system to such as extent that the person is easily infected by bacteria and viruses that attack the respiratory system.

Backflow, or regurgitation, is caused by misshapen or damaged valves or ruptures to the tendons that hold the valves in place. These things cause the valves to imperfectly seal with each heartbeat, thus allowing backflow into the atria.

Now you might think since problems with valves are mechanical in nature that nutrition and supplements would not play much of a role in resolving them. If so, you would be wrong. Most medical doctors are not aware of this fact, but there are numerous studies showing nutrients matter -- and supplementation can actually change the mechanical aspects of valve function. For example, it has been shown that magnesium plays a role in mitral valve prolapse.


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