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Proton Treatments for Prostate Cancer

By: M. Goz

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Radiation is frequently utilized as the first treatment for low-grade cancer that has not spread beyond the prostate gland, or has spread only to nearby tissue. It is also sometimes utilized if the cancer was not completely removed or comes back after surgery. Progression-free survival for men treated with radiation is comparable to men having surgery. When the cancer is more advanced, radiation may be used to shrink the tumor and provide pain relief. This article is dedicated to a discussion of Proton Therapy which represents the most advanced type of radiation available today.

Differing from high-energy X-rays, proton beams deposit almost all of their energy on their target, with a small amount of radiation affecting the tissues from the surface of the skin to the front of the tumor. Also, there is almost no impact on tissue beyond the tumor. This property enables doctors to bombard tumors with higher, more effective radiation doses than is possible with gamma radiation.
While proton therapy is thought to be the most advanced form of radiation therapy available, size and cost have limited itsuse to only a handful of cancer centers. The promise of Proton Surgery, as it's sometimes called, lies in its ability to attack the tumor with no adverse impact on nearby healthy cells. This characteristic significantly reduces potential side effects. It also allows doctors to increase the radiation dose, theoretically improving cure rates.
One important study of Proton Therapy for Prostate Cancer, published in the June 1, 2004, issue of the International Journal of Radiation and Oncology, looked at 1,255 men who were treated for localized prostate cancer during the 1990s at the Loma Linda University Medical Center's Proton Treatment Center. The study concluded that proton therapy resulted in disease-free survival rates similar to those of surgery or conventional radiation, but with a reduction in side effects, such as incontinency and sexual dysfunction.
Proton radiation therapy is currently available at the following locations:
Proton Treatment and Research Center at Loma Linda University Medical Center – located in California east of Los Angeles
Francis H. Burr Proton Center at Mass. General Hospital – in Boston, Mass.
Midwest Proton Radiotherapy Institute at Indiana University - in Bloomington, Indiana
The University of Florida Proton Therapy Institute – Jacksonville, Florida
M.D. Anderson Cancer Center's Proton Center - Houston, Texas
Proton Centers are under construction at the following locations:
Proton Therapy Center at University of Pennsylvania – Philadelphia, Pa. Scheduled to open in 2009
Hampton University Proton Therapy Institute –near Norfolk and Williamsburg, Virginia - Scheduled to open in 2010
Northern Illinois University Proton Therapy Center - 35 miles west of Chicago - Scheduled to open in 2010
ProCure Proton Therapy Center, Oklahoma City, located at the INTEGRIS Cancer Campus - Scheduled to open in 2009
As radiation treatment proceeds, it often causes patients to become tired. Resting is important, however doctors usually advise patients to try to stay as active as possible. Studies have indicated that exercise helps to reduce fatigue and improves quality of life during radiation therapy. While Proton Therapy results in a lower frequency of side effects, all radiation has the potential to cause some of the following problems.
1) Frequent urination, burning while passing urine.
2) During and after treatment you may experience diarrhea, rectal leakage, and an irritated large intestine. Most of these problems generally go away over time.
3) Difficulty controlling your urine or problems with leaking. Although this side effect is less common than after surgery, the possibility of incontinence increases each year for several years after treatment.
4) Sexual dysfunction

Article Source: http://depositarticles.com/

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