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VIDEO: Breast cancer is the most common type of cancer in American women. This year, more than 250,000 individuals will be diagnosed with the disease, and the vast majority will be… view more 

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ARLINGTON, Va., March 12, 2018 – The American Society for Radiation Oncology (ASTRO) today issued a new clinical guideline for the use of whole breast radiation therapy for breast cancer that expands the population of patients recommended to receive accelerated treatment known as hypofractionated therapy.

Breast cancer is the most common malignancy treated with radiation therapy in the United States, and whole breast irradiation (WBI) is the most frequently used type of radiation delivered for these tumors. With hypofractionated WBI, patients receive larger doses of radiation across fewer treatment sessions–typically completing treatment in three to four weeks, compared with five to seven weeks for conventional treatment.

Reflecting current evidence from clinical trials and large cohort studies, the new guideline recommends hypofractionated WBI for breast cancer patients regardless of age, tumor stage and whether they have received chemotherapy. It replaces the existing ASTRO WBI guideline published in 2011.

“Previously, accelerated treatment was recommended only for certain patients, including older patients and those with less advanced disease, but recent

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