Havertown, PA (PRWEB) April 11, 2013
Newly published research from Philadelphia CyberKnife provides some of the most convincing evidence yet that stereotactic body radiation therapy is among the most effective types of treatment for prostate cancer.
Authors say that, while more follow-up is needed, the study shows SBRTs success rate is comparable to other treatments, including conventional surgery, which is often held as the gold standard treatment for prostate cancer. In addition, SBRT offered more convenient treatment and less risk of side effects like erectile dysfunction.
Radiation oncologists believe the results with SBRT are equivalent to what youd get from surgery or other forms of radiation, but theres never been a head-to-head comparison, says Dr. Rachelle Lanciano, chief of radiation oncology at Delaware County Memorial Hospital, who co-wrote the study. This is another piece of the puzzle showing that SBRT works, the toxicity is low, and the outcomes are very good.
Prostate cancer affects about one in six men and is the second-leading cause of cancer death among men. Besides SBRT and surgery, patients can choose brachytherapy, in which small radioactive seeds are implanted in the prostate, or IMRT, another type of radiation therapy.
IMRT destroys prostate cancer cells with low-dose per fraction radiation generated by a linear accelerator which rotates around the patient usually in a single plane. IMRT involves about 40 daily radiation treatments over the course of eight weeks.
Alternatively, SBRT destroys prostate cancer cells with high-dose per fraction radiation in five treatments and is delivered by a radiosurgical system like the CyberKnife