Long Term Combo Cure for Prostate Cancer Using Radiation

by Medindia Content Team on  January 5, 2007 at 8:07 PM Cancer News
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Long Term Combo Cure for Prostate Cancer Using Radiation
Combinations of radiation therapy on the exterior along with radiation seed implants on the interior have been found to be highly effective for treatment of prostate cancer. A study published by the International Journal of Radiation Oncology Biology Physics has revealed that about seventy four percent of men who have undergone such a combination therapy have been completely cured after 15 years.
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This study was conducted by the physicians at the Seattle Prostate Institute. Doctors wanted to look at the combination of seed implants and external beam radiation therapy, two different types of radiation therapy, to prolong the long-term disease cure rates for prostate cancer. Over the course of 15 years, doctors followed 232 men with early-stage prostate cancer who received a course of external beam radiation therapy followed by permanent seed implants a few weeks later. Sixty-five percent of these patients had T2b-T3 disease and the entire group had an average pre-treatment PSA of 15 ng/ml.

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Seed implants, also called brachytherapy, are small radioactive pellets, each about the size of a grain of rice. The seeds are inserted into the prostate through small needles during a brief outpatient procedure. External beam radiation therapy involves a series of 25 short daily outpatient treatments, where a radiation oncologist precisely directs high energy radiation beams to kill cancer cells.

"This study is exciting because it shows that the combination of brachytherapy and external beam therapy are successful long-term at curing men of their prostate cancer," said John E. Sylvester, M.D., lead author of the study and the Director of the Seattle Prostate Institute in Seattle. "This is good news for men with prostate cancer since radiation therapy is less invasive, spares healthy tissue and helps patients return to regular activities sooner than surgery."

Source: Eurekalert
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