Hormone replacement therapy (HRT), which is used to treat the symptoms of menopause, may increase breast cancer risk dramatically. A new study that followed more than 100,000 women over 40 years found that women who took HRT (an estrogen and progestin pill) for about 5 years were nearly 3 times more likely to develop breast cancer compared to those who were just taking an estrogen pill, or nothing at all. And the longer a woman was on HRT, the higher the cancer risk became, according to data published in the British Journal of Cancer. For example, the breast cancer risk was 3.3 times higher for women on HRT for 15 years. While about 14 in 1,000 women in their 50s are expected to develop breast cancer, the rate is 34 in 1,000 for women on HRT, the study argues. Posted August 22, 2016. Via The Telegraph.
The severity of side effects from breast cancer hormone treatments may be influenced by whether a patient expects side effects to occur. A new study examined 111 women who had undergone surgery for breast cancer and were about to start hormone therapy with tamoxifen or aromatase inhibitors. At that point, the women were asked about their expectations of side effects. They were then asked again after 3 months and 2 years of treatment. At the beginning, 8% expected no side effects, 63% expected mild side effects and 29% said moderate to severe effects. The results, published in Annals of Oncology, showed that women who expected side effects to be bad had nearly twice as many side effects after 2 years than women who expected no side effects or mild ones. In addition, the women who expected severe side effects tended to have lower quality of life during treatment. Posted August 24, 2016. Via Medical News Today.