González Ferreira, José AntonioFernández, CastaliaGonsalves, DanielaPaguey, ImanolCouñago Lorenzo, Felipe2025-12-092025-12-092025González Ferreira, J. A., Fernandez, C., Gonsalves, D., Paguey, I., & Couñago, F. (2025). Radiotherapy treatment time delay evidence, part I: Update on cervical, anal, prostate, and head and neck cancers. World Journal of Clinical Oncology, 16(10). https://doi.org/10.5306/wjco.v16.i10.1092472218-4333https://hdl.handle.net/11268/16589Treatment delays during radiotherapy for head and neck cancer (HNC) are a well-established factor negatively affecting clinical outcomes, with similar trends observed in other cancers. In this first part of a two-part review, we assessed the impact of overall treatment time (OTT) prolongation on locoregional control (LRC) and survival (SV) in cervical cancer (CC), prostate cancer (PC), and anal cancer (AC), while updating evidence for HNC. A comprehensive literature search was performed in evidence-based databases, including MEDLINE, identifying studies evaluating the relationship between OTT prolongation and outcomes.engAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/RadioterapiaTratamientos antineoplásicosRetraso del tratamientojournal article10.5306/wjco.v16.i10.109247open accessCáncerTratamiento médicoInvestigación médicaGoal 3: Ensure healthy lives and promote well-being for all at all ages