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Pressure ulcers (PUs) (also termed pressure injuries [PIs]) remain a major patient safety issue, particularly in critical care and other high-risk healthcare settings. Nurses are central to PUs/PIs prevention; however, deficiencies in knowledge, attitudes, and preventive practices among nursing staff may negatively affect patient outcomes. To systematically synthesise global evidence on nurses' knowledge, attitudes, and practices related to PUs/PIs prevention, and to identify factors influencing preventive performance. A systematic review was conducted in accordance with PRISMA guidelines. Electronic databases including PubMed, CINAHL, EBSCO, MEDLINE, PsycINFO, and Springer were searched for studies published between 2011 and 2025. Eligible studies were primary research articles examining registered nurses' knowledge, attitudes, and/or practices regarding PUs/PIs prevention, using cross-sectional, observational, or non-experimental designs. Data extraction focused on study characteristics, settings, samples, assessment instruments, and key outcomes related to knowledge, attitudes, and preventive practices. Due to methodological heterogeneity, a narrative synthesis was performed. Twenty-nine studies from diverse geographical regions were included, with sample sizes ranging from 28 to 950 nurses. Overall, nurses' knowledge of PUs/PIs prevention was frequently inadequate, particularly in prevention-specific domains. In contrast, attitudes toward prevention were generally positive across studies. Preventive practices, however, were often suboptimal. Commonly reported barriers included staff shortages, high workload, limited resources, and insufficient institutional support. Higher educational attainment, specialised clinical experience, recent training, and professional seniority were consistently associated with better knowledge, more positive attitudes, and improved preventive practices. Although nurses generally demonstrate positive attitudes toward PUs/PIs prevention, persistent gaps in knowledge and practice remain. These findings underscore the need for structured education programmes, simulation-based training, and strengthened organisational support to enhance adherence to evidence-based prevention strategies. Future research should employ experimental and longitudinal designs, standardised measurement tools, and broader international representation to support sustainable improvements in PUs/PIs prevention and patient safety.
Venous leg ulcers occur due to chronic venous insufficiency in the lower extremities and are often difficult to heal. Platelet-rich plasma and platelet-rich fibrin are products that contain high concentrations of platelets. This systematic review evaluated the effectiveness, safety and cost-effectiveness of these products for the treatment of venous leg ulcers. Guided by the 2020 Joanna Briggs Institute systematic review of effectiveness guideline, this review included original studies that investigated platelet-rich plasma and platelet-rich fibrin in the treatment of venous leg ulcers from databases including the Cochrane Library, Embase, Medline, CINAHL, PubMed, World Health Organisation International Clinical Trials Registry, Clinical Trials.gov and Australian New Zealand Clinical Trials Registry. Methodological quality was assessed using relevant appraisal checklists. Information related to general characteristics of included articles and relevant outcomes of interest were extracted and synthesised narratively. Of thirty-six eligible studies, 24 studies used platelet-rich plasma, eleven investigated fibrin-rich plasma and one study used both platelet-rich plasma and fibrin-rich. Most studies reported these products were effective in promoting wound healing, reducing other symptoms, and were safe to use. The use of platelet-rich plasma and platelet-rich fibrin resulted in significantly higher healed venous leg ulcers compared to control using conventional treatment (RR: 2.93, 95% CI, 1.90–4.53, p = 0.01). These products were safe to used topically and promoted to wound healing, reduced pain, either along or combined with other treatments. Platelet-rich plasma and fibrin-rich plasma improves wound healing and appears to be safe to use in the treatment of venous leg ulcers.
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