Saturday, January 10, 2009

Essential Facts of Mesothelioma and Asbestos Exposure

Despite the efforts of numerous health agencies throughout the world in trying to educate the public on the definition and effects of mesothelioma, it is unfortunate that there still exist a large majority of the local population in trying to comprehend such efforts. With this article, I hope that certain facts can be spelled out much more clearly in as simple terminology as possible.

To start off, mesothelioma is a rare form of cancer in which malignant or cancerous cells are found in the mesothelium, a protective sac that covers most of our body's internal organs. At present, statistics have proven that a majority of people who suffer from mesothelioma, have had first contact with materials known as asbestos, in the course of their work or exposure.

Mesothelioma (or cancer of the mesothelium) is a disease in which cells of the mesothelium become abnormal and divide without control or order. The known effect is that invasion and damage to nearby tissues and organs can occur. The cancer cells can also spread from their original location to other parts of the body. And very often, mesothelioma begins in the pleura or peritoneum. The pleura is the membrane that typically surrounds the lungs and lines the wall of the chest cavity, while the peritoneum is the tissue that covers most of the organs in the abdominal cavity. In addition, the pericardium covers and protects the heart, while the tissue surrounding the male internal reproductive organs is called the tunica vaginalis testis. For the female, this will be known as the tunica serosa uteri.

While it has been reported specifically in the United States alone that the occurrence of mesothelioma has been at a rate of 2000 cases per year in the last 20 years, there maybe more unreported cases that have gone undetected and therefore, not captured within official records. Typically, mesothelioma affects mainly the male gender, but although (as mentioned above) this form of cancer has affected mainly those in direct contact with asbestos material in the course of their work, there have also been occurrences to those who have had no direct exposure to asbestos.

Before we go on further, we need to be clear on where asbestos comes from. Essentially, asbestos refers to a group of minerals that occur naturally as masses of strong, flexible fibers that can be separated into thin threads and woven. Asbestos is often found in construction related materials such as cement, roofing materials, flooring products, etc. How asbestos gets into the human system, is when during the manufacturing process, where there is no strict control on the handling process, the particles generated from asbestos will float in the air and maybe inhaled by individuals, thus causing serious health problems. This therefore gives rise to other forms of cancer and one of them, mesothelioma.

Historically, mesothelioma was discovered particularly after the World War Two, as part of the industrialization process and increased war efforts. Millions of Americans were believed to have been exposed to asbestos dust particles in their course of work. And when these folks return home to their loved ones, it is believed that the dust particles which had remained on their work attires were subsequently inhaled by their family members, thus creating a form of "cross contamination" effect. While the occupational safety and health act today has restricted the amount of asbestos workers can be exposed to, the risk has obviously not been fully mitigated and the occurrence of mesothelioma is still possible.

To minimize exposure as well as cross contamination, workers in such industries should change out before leaving their workstations and showering. This concept is similar to exposure during a chemical fallout where the process of decontamination is deployed.

Gary Ng


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