Saturday, September 8, 2007

How is mesothelioma diagnosed? by Devendra Jaiswal

There are Some treatments available for all patients with malignant mesothelioma. The three kinds of treatment used are surgery, radiation therapy, and chemotherapy.


Surgery:(To remove the cancer or buildup of fluid)


Surgery is a common treatment for mesothelioma. It is not an option unless the cancer is limited to one place and unless the person can withstand the surgery. During surgery, the physician may remove a portion of the lining of the chest (pleurectomy) or abdomen (peritonectomy) and some of the tissue surrounding it. Depending on the extent the disease has spread, a lung may also require removal (extrapleural pneumonectomy). Occasionally, a portion of the diaphragm is taken out as well. If treatment is not possible, other less invasive measures can be used to relieve the patient's symptoms. For example, a needle placed into the chest cavity (thoracentesis) can remove excess fluid in the chest. If recurrence of fluid causes symptoms, a no surgical or surgical method can be used to scar the lining of lung cavity and cause it to adhere to the lung. The procedure obliterates the pleural space and thus prevents the fluid from re accumulating. (This procedure is called sclerosis or sclerotherapy.) These methods are called palliative, for they are not meant to cure the cancer but to improve symptoms.


Radiation therapy:(The use of high-energy X-rays to kill cancer cells)


Radiation therapy uses high-energy x rays to kill cancer cells and cause tumor shrinkage. It is rarely used as the primary treatment for pleural mesothelioma in those patients for whom surgery is not an option. It may also be used as an adjunct to surgery or as a method of alleviating various symptoms like trouble with swallowing, pain, and shortness of breath.


Chemotherapy:(drugs that kill cancer cells)


Chemotherapy involves the use of drugs to kill cancer cells. The most commonly used drugs are doxorubicin, cisplatin, and methotrexate. The medicines are delivered into a vein or taken by mouth. In the treatment of mesothelioma, they may also be injected directly into the chest or abdominal cavity. Chemotherapy may be given as the main treatment or may be an addition to surgery, depending on the type and stage of the cancer.


A new treatment being studied for early stages of mesothelioma confined to the chest is called intraoperative photodynamic therapy. This treatment uses special drugs that make cancer cells more sensitive to killing by a laser light. The drugs are given several days before surgery. During surgery, the special light is used to shine on the pleura.


By the time symptoms show up and mesothelioma is diagnosed, the disease is often advanced. The average survival period after diagnosis is about one year. If the cancer is found before it has spread and it is treated aggressively, about half of the patients will live two years, and approximately 20% will survive five years. About 2,000 new cases of mesothelioma are diagnosed in the United States each year. Most people with mesothelioma have worked in jobs where they breathed in fibers of asbestos. Others have been exposed to asbestosis fibers in their homes, often without knowing it.


Like most cancers, the outlook for recovery often depends on how early the disease is diagnosed and how aggressively it is treated. Mesothelioma is usually fatal, with a life expectancy of up to 18 months after diagnosis. However, there are experimental treatments that may extend life.




About the Author
The author is a regular contributor to halfvalue.com where more information about Mesothelioma and other more accessories is available.

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