For women who have undergone prior cancer treatments, including childhood cancer survivors, planning with the medical team should begin before conception in order to understand how to best manage risks during pregnancy. Some cancer treatments, including chemotherapy and other medical therapies and radiation therapy – even those given many years before pregnancy – can place the mother and the baby at higher risk for certain complications during pregnancy. Young women who are preparing to begin cancer treatments that can result in infertility should receive counseling about fertility preservation.
Tests to assess the mother’s thyroid, pulmonary, heart, and other functions are typically performed prior to pregnancy, and results are considered relative to the changes and increased demands that occur during pregnancy. Review and modification of current medications, including those designed to prevent cancer recurrence, should also be performed before pregnancy as well. Mothers should not reduce or discontinue medications on their own. Imaging related to surveillance for cancer recurrence should also be considered.