Role of anemia prior to radiation treatment in local recurrence and survival after breast conservation treatment for early-stage breast cancer

Clinical Breast Cancer
Eleanor E R HarrisLawrence J Solin

Abstract

Anemia is common among patients with newly diagnosed cancer, may be exacerbated by cancer therapies, and leads to radioresistance by lowering oxygen levels in the tumor microenvironment. Herein, the effect of breast irradiation on hemoglobin levels and outcomes in breast conservation therapy is reported. Medical records of 1368 women with stage 0, I, and II breast cancer treated with breast conservation therapy from 1977-2002 were reviewed. Hemoglobin levels at baseline as well as during and after radiation were recorded. Patterns of hemoglobin changes and the effect of anemia on local control and survival outcomes were assessed. Median follow-up time was 8 years for the normal group and 6 years for the anemic group. Baseline anemia was seen in 18% of the patients, 90% of whom had mild anemia (hemoglobin, 11.9-10.0 g/dL). Anemia was recorded in 21% during radiation. Among patients with normal baseline hemoglobin levels, 6.5% of the patients became anemic during radiation. Of those with baseline anemia, 72% had stable to improved hemoglobin levels during radiation, and 22% declined by a median of 0.3 g/dL. There were no significant differences in local or regional recurrence, overall, disease-free, cause-specific, or distant dis...Continue Reading

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Citations

May 8, 2013·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Jean-Michel Hannoun-LeviUNKNOWN GEC-ESTRO Breast Cancer Working Group
Dec 12, 2012·Journal of Midwifery & Women's Health·Nicole Carlson, Joyce King

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