Breast Cancer Treatment Takes Toll on Heart

Radiation therapy can help fight breast cancer, but the benefit comes at a cost: an increased risk of heart disease later in life, a new study found. The risk of major coronary events rose after radiation therapy by an average of 7.4 percent for every gray (Gy) of exposure to the heart, with no apparent threshold, according to Sarah Darby of the Clinical Trial Service Unit in Oxford, England, and colleagues. The increase in risk was greatest in the first five years after radiotherapy but...Full Story
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