IMPACT OF DOOR-TO-NEEDLE TIME ON THE EFFECTIVENESS OF ALTEPLASE THROMBOLYSIS IN ISCHEMIC STROKE: A SYSTEMATIC LITERATURE REVIEW
DOI:
https://doi.org/10.66104/k45s1f02Keywords:
Ischemic Stroke; Intravenous thrombolysis; Door-to-needle time; Alteplase; Cerebral reperfusion.Abstract
Introduction: Ischemic Stroke (IS) remains one of the leading causes of morbidity, mortality, and long-term disability worldwide, with intravenous thrombolysis representing one of the main therapeutic strategies for early cerebral reperfusion. In this context, door-to-needle time is considered an important prognostic indicator, since therapeutic delays are directly associated with ischemic injury progression, neurological deterioration, and increased residual functional disability. Objective: To critically analyze contemporary scientific evidence regarding the impact of door-to-needle time on clinical, neurological, functional, and care-related outcomes associated with intravenous thrombolysis in Ischemic Stroke. Methodology: This systematic review was conducted according to PRISMA 2020 recommendations. Searches were performed in the PubMed/MEDLINE, Scopus, Web of Science, Embase, and SciELO databases, including studies published between 2020 and 2025 in Portuguese, English, and Spanish. Observational studies, prospective and retrospective cohorts, multicenter studies, and clinical trials related to door-to-needle time and intravenous thrombolysis in IS were included. Methodological quality was assessed using the Newcastle-Ottawa Scale (NOS). Results: Fourteen studies were included in the final qualitative synthesis. Evidence demonstrated a consistent association between shorter door-to-needle times and better clinical outcomes in IS, including lower in-hospital mortality, improved neurological recovery, greater functional independence, and reduced residual disability. Furthermore, structured care protocols, multidisciplinary integration, availability of advanced neuroimaging, and implementation of digital technologies showed a positive impact on therapeutic efficiency and reduction of delays related to cerebral reperfusion. Final considerations: Reduction of door-to-needle time remains one of the main prognostic determinants related to contemporary management of Ischemic Stroke. Strategies focused on optimizing hospital workflows, strengthening stroke care networks, and incorporating diagnostic and therapeutic technologies appear fundamental to improving clinical outcomes associated with intravenous thrombolysis.
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Copyright (c) 2026 André Victor da Silva Jardim, Jordanna Rocha Cardoso Ferro, Leonardo da Paz de Queiroz Marques, Mikael José dos Santos Calmo, Weslley Anderson Barreto Ramos, Felipe Moraes Alecrim

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