The heart is one of the major organs within the human body, and this organ is protected by a special sac, or lining, that surrounds the heart along with the roots to the great vessels. The lining that surrounds the heart is known as the pericardium, and this is a double-layered lining made up of the fibrous pericardium and the serous pericardium. There are also two layers to the serous pericardium, between which you will find what is known as the pericardial cavity.
The purpose of the serous pericardium and the pericardial cavity is to lubricate the area, enabling the heart to function smoothly and without friction within the body. What is known as serous fluid.
There are diseases that can form in the pericardial cavity, and one of these is known as pericardial mesothelioma, which is a form of cancer that is related to exposure to asbestos fibers and dust over long periods or at high levels. Although pericardial mesothelioma is the rarest form of this cancer, once it has been diagnosed, it is often in its later stages and can leave the patient with only a matter of months to live.
When a patient suffers from a disease, such as pericardial mesothelioma, this can cause excessive fluid build up in the pericardial cavity, and therefore, some form of treatment may be required in order to drain the excess fluid that has accumulated in this area. The fluid that is produced for lubrication of the heart is known as pericardial fluid (or serous fluid) but excessive build up of fluid in this area can cause problems and discomfort, and therefore, it needs to be drained.
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