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Late effects and survivorship toxicity

aka late effects, late toxicity, late toxicities, long-term toxicity, long-term toxicities, long-term side effects, long-term effects, chronic toxicity, cumulative toxicity, cumulative dose, lifetime dose, infertility, gonadotoxicity, premature ovarian insufficiency, premature menopause, growth impairment, neurocognitive effects, neurocognitive decline, cognitive impairment, chemo brain, lymphoedema, lymphedema, xerostomia, dry mouth, osteoporosis, bone loss, osteonecrosis, osteonecrosis of the jaw, sexual dysfunction, childhood cancer survivors

Health problems appearing months or decades after treatment ends: heart damage, infertility, second cancers, lymphoedema, dry mouth, memory problems, weak bones. They matter most for children and young adults, who live longest with them.

Two-thirds of childhood cancer survivors have at least one chronic condition by age 50 (Childhood Cancer Survivor Study), which is why paediatric oncology has spent decades reducing radiation and anthracycline doses without losing cure rates. Adult examples include lymphoedema (reduced by sentinel node biopsy), xerostomia and dysphagia after head and neck radiotherapy (reduced by IMRT), infertility (addressed by oncofertility and GnRH protection), premature menopause and osteoporosis from endocrine therapy, neuropathy, cardiomyopathy, and neurocognitive effects. Survivorship care plans, risk-based screening (breast MRI after chest radiotherapy, echocardiography after anthracyclines) and exercise programmes address them, and trials increasingly report late toxicity as a co-primary concern in de-escalation.

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Side effects

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