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Penn study: Financial incentives affect prostate cancer treatment patterns
Date:3/12/2013

Philadelphia - According to a new study by researchers at the Perelman School of Medicine at the University of Pennsylvania, prostate cancer patients of urologists who own expensive radiation equipment are more likely to receive radiation treatment in lieu of surgery than patients treated by urologists without an ownership stake in the equipment. The study, now available online in the Journal of Urology, found that integrated prostate cancer centers (IPCCs), where urology and radiation oncology practices are combined, use expensive radiation-based treatments at higher rates than other forms of prostate cancer treatment, and reduce their use of prostatectomy (the surgical removal of all or part of the prostate gland).

Intensity-modulated radiation therapy (IMRT) used radiation beams of varying intensities and shapes that attack tumors. The changes in shape allow for reduced exposure of healthy tissue to radiation and limit the side effects of treatment. In the case of most IPCCs, urologists buy radiation equipment called linear accelerators, complex machines which can cost more than $1.5 million. The ownership stake in the equipment provides these physicians with reimbursement each time the equipment is used to treat a patient.

"Our study found that ownership of radiation therapy equipment that offers high reimbursement rates has an impact on treatment patterns for patients with prostate cancer," said Justin Bekelman, MD, assistant professor of Radiation Oncology at Penn Medicine. "IMRT increases for these patients while surgeries decrease when financial incentives are present. We also found increases in IMRT use in markets where urologists do not own the equipment, but no corresponding decreases in surgery, which reflects the overall increase of advanced radiotherapy, an expensive treatment for prostate cancer."

In the new study, investigators examined prostate cancer treatment patterns among Medicare beneficiaries before
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Contact: Katie Delach
katie.delach@uphs.upenn.edu
215-349-5964
University of Pennsylvania School of Medicine
Source:Eurekalert

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