External beam partial breast irradiation most cost-effective...( External beam partial breast irradia...),Health
External beam partial breast irradiation (EB-PBI) is the most cost-effective method for treating postmenopausal women with early-stage breast cancer based on utilities, recurrence risks and costs when compared to whole breast radiotherapy (WBRT) and brachytherapy partial breast irradiation (brachy-PBI), according to a study in the June 1 issue of the International Journal of Radiation Oncology*Biology*Physics, the official journal of the American Society for Radiation Oncology (ASTRO).
PBI is a newer form of radiation therapy for breast cancer where only part of the breast is treated twice a day for four to five days. Radiation oncologists have been studying different methods to deliver the radiation to the tumor. EB-PBI uses high-energy external X-rays to deliver radiation to the breast after a lumpectomy and brachy-PBI delivers radiation through either implanted needles or a small sphere placed into the post-lumpectomy cavity in the breast.
Whole breast radiation therapy is currently the standard of care, but it is a more time-consuming treatment, as it involves five to seven weeks of daily treatments using a linear accelerator to deliver X-rays to the tumor site. While the convenience of receiving radiation for one week instead of five to seven weeks is obvious, the cost-effectiveness of the different methods of treatment has never been analyzed. Doctors are also still examining long-term data to see whether partial breast irradiation is as effective at curing the cancer as whole breast radiation.
In a previous study, researchers at the Harvard Radiation Oncology Program, the Dana-Farber Cancer Institute and Brigham and Women's Hospital Department of Radiation Oncology, and the Massachusetts General Hospital Department of Radiation Oncology, all in Boston, and the Brandeis University Heller School for Social Policy and Management in Waltham, Mass., determined that under most circumstances, the quality-adjusted life expectancy was
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| Contact: Beth Bukata bethb@astro.org 703-839-7332 American Society for Radiation Oncology Source:Eurekalert |
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