Relapse rates and disease-specific mortality following procedures for fertility preservation at time of breast cancer diagnosis

Breast cancer (BC) is the most common indication for fertility preservation (FP) in women of reproductive age. Procedures for FP often include hormonal stimulation. It is not clear wheter using hormonal stimulation for FP is associated with deterioration in BC prognosis. A nationwide prospective cohort study in Sweden found that disease-specific mortality and relapse rates were similar in women who underwent hormonal FP, women who underwent nonhormonal FP, and women who were not exposed to FP.