alexa Efficacy and safety of recombinant activated factor vii in major surgical procedures: systematic review and meta-analysis of randomized clinical trials.


Journal of Anesthesia & Clinical Research

Author(s): Ranucci M, Isgr G, Soro G, Conti D, De Toffol B

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Abstract OBJECTIVE: To investigate the efficacy and safety of recombinant activated factor VII (rFVIIa) treatment in patients undergoing major surgical procedures. DATA SOURCES: Relevant studies were searched in BioMedCentral, CENTRAL, PubMed, and PubMed Central. STUDY SELECTION: Only randomized controlled trials on humans undergoing major surgery were included. Efficacy was determined as the rate of patients receiving allogeneic packed red blood cells; safety was assessed in terms of thromboembolic complications and mortality rate. DATA EXTRACTION: We followed the Cochrane Collaboration method for data extraction and internal validity procedures, as well as the Quality of Reporting of Meta-analyses statement. DATA SYNTHESIS: Seven randomized controlled trials met the inclusion criteria. Treatment with rFVIIa is associated with a reduced risk of receiving allogeneic packed red blood cells (odds ratio, 0.29; 95\% confidence interval, 0.10-0.80). In a subgroup analysis, only patients receiving at least 50 mug/kg of rFVIIa had a significant benefit (odds ratio, 0.43; 95\% confidence interval, 0.23-0.78). No differences in thromboembolic complications and mortality rates were observed. CONCLUSIONS: Treatment with rFVIIa is effective in reducing the rate of patients undergoing transfusion with allogeneic packed red blood cells. However, the cost-benefit ratio is favorable only in patients who need a huge number of packed red blood cell units. No safety concerns arise from the present study. This article was published in Arch Surg and referenced in Journal of Anesthesia & Clinical Research

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