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  • Title: Intravenous tranexamic acid reduces blood transfusions in revision total hip arthroplasty: a meta-analysis.
    Author: Xin WQ, Gao YL, Shen J, Yang XY.
    Journal: J Comp Eff Res; 2019 Aug; 8(11):917-928. PubMed ID: 31436114.
    Abstract:
    Aim: We performed a meta-analysis to systematically assess the efficacy and safety of intravenous tranexamic acid in revision total hip arthroplasty. Method: Potential academic articles were identified from Cochrane Library, Medline, PubMed, EMBASE, ScienceDirect and other databases. The time range we retrieved from was that from the inception of electronic databases to February 2019. Gray studies were identified from the references of included literature reports. STATA version 11.0 was used to analyze the pooled data. Results: A total of eight articles were involved in our study. The overall participants of tranexamic acid (TXA) group were 3533, whereas it was 11,007 in the control group. Our meta-analysis showed that TXA is preferable for revision total hip arthroplasty because of its lower value of hemoglobin reduction (weighted mean difference = -1.277-1.405; 95% CI: -1.996 to -0.559; p < 0.001), the rate of blood transfusion (odds ratio: 0.233; 95% CI: 0.129-0.422; p < 0.001) and the number of red blood cell units transfused (weighted mean difference = -0.978; 95% CI = -1.631 to -0.324; p = 0.003). However, there was no difference in calculated blood loss (p = 0.075), operation duration (p = 0.569) and venous thromboembolism complications (p = 0.338). Conclusion: Based on available evidence, use of intravenous TXA for patients undergoing revision arthroplasty may reduce hemoglobin reduction, number of red blood cell units transfused and blood transfusion rate without increasing the risk of venous thromboembolism and length of operation duration. Given the relevant possible biases in our study, adequately powered and better-designed studies with long-term follow-up are required to reach a firmer conclusion.
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