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Long-term complications of adjuvant chemotherapy for early stage breast cancer.

The benefits of adjuvant chemotherapy for early stage breast cancer must be considered in light of the potential risks and anticipated side effects. When considering a course of adjuvant chemotherapy for a patient, one should not only consider acute side effects of treatment, but should understand the long-term risks of therapy. Sustained or long-term effects of adjuvant chemotherapy usually have either a late onset or a sustained impact--often lasting for many years. In the case of some of the rare long-term complications, many years may elapse before any symptoms develop. This review details sustained and long-term complications of adjuvant chemotherapy including information about risk factors, etiology, and incidence rates for specific complications. Interventions to ameliorate long-term complications are also addressed.