Time to diagnosis of retinoblastoma in Latin America: A systematic review
2019
AbstractRetinoblastoma (RB) is the most common intraocular tumor of childhood. In low income countries, Time to diagnosis (TTD: interval between first symptom and diagnosis) has been associated with extraocular disease, metastasis and mortality. However, the relationship between TTD and prognosis is complex and not simply a linear correlation, particularly if TTD is <6 months. This systematic review aims to identify studies reporting TTD of retinoblastoma in Latin America, highlighting factors affecting TTD, alongside proposals and initiatives to obtain shorter intervals. The review also aims to discuss the methodology linked to cancer pathways studies. The study respected PRISMA recommendations, was registered on Prospero, an international database for systematic review registries under number CRD42017076777. MEDLINE/PUBMED, LILACS and SCIELO databases were searched. Studies from Latin America and the Caribbean, published between 1997 and 2017, reporting TTD and age at diagnosis of patients with retinobl...
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