Mesothelioma Risk factors

Asbestos exposure: The primary risk factor for mesothelioma

Asbestos is a mineral that's found naturally in the environment. Asbestos fibers are strong and resistant to heat, making them useful in a wide variety of applications, such as in insulation, cement, brakes, shingles, flooring and many other products. People who work around asbestos fibers are thought to have the greatest risk of mesothelioma.

When asbestos is broken up, such as during the mining process or when removing asbestos insulation, dust may be created. If the dust is inhaled or swallowed, the asbestos fibers may settle in the lungs or in the stomach, where they can cause irritation that may lead to mesothelioma, though how exactly this happens isn't understood.

Mesothelioma risk is believed to be increased in people who are exposed to high levels of asbestos, in people who are exposed to asbestos over a long period of time and in people exposed to asbestos at a young age. It can take 30 to 40 years or more for mesothelioma to develop as a result of asbestos exposure.

Some people with years of asbestos exposure never develop mesothelioma. And yet, others with very brief exposure develop the disease. This indicates that other factors may be involved in determining whether someone gets mesothelioma or doesn't. For instance, you could inherit a predisposition to cancer or some other condition could increase your risk.

Possible risk factors
Factors that may increase the risk of mesothelioma include:

• Personal history of asbestos exposure. If you've been directly exposed to asbestos fibers at work or at home, your risk of mesothelioma is greatly increased.
• Living with someone who works with asbestos. People who are exposed to asbestos may carry the fibers home on their skin and clothing. These stray fibers can put others in the home at risk of mesothelioma. People who work with asbestos should shower and change clothes before leaving work.
• Smoking. Risk of mesothelioma is increased greatly in smokers who are exposed to asbestos.
• SV40. Some research indicates a link between mesothelioma and simian virus 40 (SV40), a virus originally found in monkeys. Millions of people may have been exposed to SV40 when receiving polio vaccinations between 1955 and 1963, because the vaccine was developed using monkey cells. Once it was discovered that SV40 was linked to certain cancers, the virus was removed from the polio vaccine. Whether SV40 increases the risk of mesothelioma is a point of debate, and more research is needed.
• Radiation. Some research links mesothelioma to the radioactive substance thorium dioxide, which was used along with X-rays to diagnose various health conditions from the 1920s to the 1950s. Thorium dioxide was later found to cause cancer and is no longer used.
• Family history. A family history of mesothelioma may increase your risk of mesothelioma, but more research is needed to understand this theory.

Malignant Pleural Mesothelioma Survival Rate

Malignant Pleural Mesothelioma is a lethal cancer that starts in the lining of the lungs. The main cause is believed to be unprotected contact with asbestos. Every year about 3000 new cases of this disease are reported in the United States. It is estimated that over the past fifty years nearly eight million people have been exposed to asbestos and that 300,000 new cases would be reported by the year 2030. The peak may be around 2020 and thereafter the incidence is likely to taper down because of the preventive measures that are being taken.

Like in all cases of cancer, early detection and appropriate treatment improve the survival rate. On both counts the pleural mesothelioma patients are at a disadvantage. Symptoms take anywhere between 20 to 50 years to manifest. Because of this, the patients are generally in the fifty plus age group. And the outwardly noticed indications of the sickness are similar to that of several lesser ailments. This makes the diagnosis difficult. Because of all these, by the time the problem is detected, the cancer is likely to have spread. As yet there is no fully effective line of treatment. It is generally accepted that a combination therapy is better than monotherapy. A great deal of research is being done in this area.

A number of studies have been made about the survival rate among pleural mesothelioma patients. They all come to the same conclusion – the disease is almost always fatal. The lifespan of a person diagnosed with pleural mesothelioma is about six months to two years. There have been exceptions and their stories are inspiring. The life expectancy varies according to the stage (pleural mesothelioma has four different phases) and the type. One research based on the histologic (tissue structure)tests shows a median survival of 11 months – 9.4 months for sarcomatous, 12.5 months for epithelial and 11 months for mixed.

Several inspirational books are available for the patient to read and fortify himself. Also helpful are chat rooms with others in the same condition.

Pleural Mesothelioma provides detailed information on Malignant Diffuse Pleural Mesothelioma, Malignant Pleural Mesothelioma, Malignant Pleural Mesothelioma Survival Rate, Mesothelioma Pleural Brachytherapy and more. Pleural Mesothelioma is affiliated with Peritoneal Mesothelioma Lawyers.

Because mesothelioma is so hard to detect, and can easily seem to be just an upset stomach or other minor issue, it is often the case that by the time you realize you have mesothelioma, it is too late to do anything about it. The only reason you realize that you have a cancer in your chest cavity is that something truly awful has gone wrong, and you are on the final stages.

The average person who finally finds a doctor to determine they have mesothelioma often has less than a year left to live at that point - even with the best treatment. The current 5 year survival rate is between 7%-20% depending on which study you read. Again, this is not necessarily because mesothelioma is "nastier" than other forms of cancer - it is more that it is so hard to detect. It festers away in the core of your chest for years and years, causing damage but not being noticed.

In fact, on a webpage for a drug being tested for mesothelioma patients, the drug makers claim with pride, "Some of the patients survived two years after the study which is very unusual for mesothelioma." It is a pretty harsh disease, when helping you make it to 2 years is a great victory.

Part of the problem with helping patients survive is that there are so few known people with mesothelioma - and they die so quickly after being discovered. There aren't a lot of people to do clinical trials on, to figure out what works and what doesn't work. There are hundreds of thousands of people who HAVE mesothelioma right now, according to most doctors. But all of those sick people do not realize yet that they have it. They typically only really know they have mesothelioma right before they die. So by then it is often impossible to do any real tests to see what might have helped them, if it had been caught earlier.