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  • Title: Late morbidity in long-term survivors of childhood brain tumors: a nationwide registry-based study in Finland.
    Author: Gunn ME, Lähdesmäki T, Malila N, Arola M, Grönroos M, Matomäki J, Lähteenmäki PM.
    Journal: Neuro Oncol; 2015 May; 17(5):747-56. PubMed ID: 25422316.
    Abstract:
    BACKGROUND: The population of long-term survivors of childhood brain tumors (BTs) is growing. The aim of our study was to evaluate late-appearing morbidity in BT survivors. METHODS: Patients diagnosed with a BT at the age of 0-15 years between 1970 and 2004, and surviving at least 5 years, were identified from the Finnish Cancer Registry (n = 740). Their late new morbidity ≥ 5 years after cancer diagnosis was assessed using the Hospital Discharge Registry containing hospitalizations and outpatient visits in specialized health care settings. The morbidity of BT survivors was compared with that of the sibling cohort (n = 3615). RESULTS: The 5-year survivors had a significantly increased hazard ratio (HR) for endocrine diseases (HR, 14.7), psychiatric disorders (HR, 1.8), cognitive and developmental disorders (HR, 16.6), neurological diseases (HR, 9.8), disorders of vision and hearing (HR, 10.5), and diseases of the circulatory system (HR, 2.7) compared with the sibling cohort. The HRs for disorders of musculoskeletal system (HR, 1.4) and diseases of the kidney (HR, 2.1) were not significantly increased. Radiation treatment did not explain all of the excess morbidity. Female survivors had a higher risk for disorders of vision and hearing (P = .046). Age at diagnosis did not show an effect on HRs. The HRs for endocrine diseases and disorders of vision or hearing loss were highest for survivors treated in the 1980s or later. CONCLUSIONS: Pediatric BT survivors had significant neurocognitive consequences. This, together with the considerable risk for endocrine morbidity, will motivate us to organize systematic follow-up procedures for pediatric BT survivors.
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