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[Blood transfusion and bacterial risk]
P Morel1, M F Leconte des Floris, L Bardiaux
1Etablissement de transfusion sanguine de Franche-Comté, Besançon, France.
Abstract:
Initial hemovigilance data confirm the incidence and severity of transfusion reactions due to the bacterial contamination of blood components (TRBC). With 18 deaths reported through the French hemovigilance network over the past 5 years, bacterial risks represent one of the major immediate complications of blood components (BC) transfusion. BC contamination may lead to more or less severe TRBC, depending on their origin: bacteria growth, the BC itself or unknown origin. Although the rate of donated blood or BC contamination is known (0.5% and 0.05%, respectively) it is still difficult to assess the actual incidence of TRBC, as it is difficult to identify them and relate them to transfusion. Likewise, better knowledge of bacteria, symptoms and outcome is required to improve prevention methods. Better prevention can reduce BC contamination and proliferation of bacteria at each stage of blood transfusion. Methods to detect BC contamination are still under investigation. Through continuous education of hemovigilance actors in identifying and dealing with TRBC, as well as drawing up procedures to perform inquiries and specific bacterial analyses, case reporting can be further improved in order to achieve more efficient prevention.
Insights
Bacterial contamination of blood components (BC) causes severe transfusion reactions (TRBC), leading to deaths. Improving prevention through better detection, education, and reporting is crucial to reduce these risks.
Area of Science:
- Transfusion Medicine
- Microbiology
- Public Health
Background:
- Bacterial contamination of blood components (BC) is a significant cause of transfusion-related bacterial infections (TRBC).
- TRBC represents a major immediate complication of blood transfusion, with a notable mortality rate.
- Current data highlight the difficulty in accurately assessing TRBC incidence and identifying causative agents.
Purpose of the Study:
- To emphasize the severity and incidence of TRBC based on hemovigilance data.
- To highlight the need for improved knowledge of bacteria, symptoms, and outcomes associated with TRBC.
- To underscore the importance of enhanced prevention strategies for BC contamination and bacterial proliferation.
Main Methods:
- Analysis of initial hemovigilance data to confirm TRBC incidence and severity.
- Review of reported deaths and complications linked to BC transfusion.
- Identification of knowledge gaps in bacterial risk assessment and prevention.
Main Results:
- Hemovigilance data confirm the incidence and severity of TRBC.
- Bacterial risks are a major cause of immediate complications and mortality following blood component transfusion.
- Accurate assessment of TRBC incidence and identification of bacterial sources remain challenging.
Conclusions:
- Enhanced prevention strategies are essential to reduce BC contamination and bacterial proliferation.
- Continuous education of hemovigilance personnel is vital for identifying and managing TRBC.
- Improved case reporting, including specific bacterial analyses, is necessary for more effective prevention of TRBC.