Cost-effectiveness of enoxaparin versus aspirin in the prevention of venous thromboembolism after total hip or knee arthroplasty: an analysis from the CRISTAL cluster-randomized trial

COST-EFFECTIVENESS OF ENOXAPARIN VERSUS ASPIRIN IN PREVENTING VENOUS THROMBOEMBOLISM

Key Findings from the CRISTAL Trial

The CRISTAL trial compared the costs and benefits of using enoxaparin versus aspirin to prevent symptomatic venous thromboembolism (VTE) after total hip or knee arthroplasty. The study found that:

  • Enoxaparin was more effective in preventing symptomatic VTE within 90 days of surgery
  • The incremental cost per quality-adjusted life-year (QALY) gained for enoxaparin was AUD$50,567
  • There is evidence that enoxaparin may be cost-effective compared to aspirin, especially if the value of avoiding VTE is high and there is a strong likelihood of VTE-related health impairments

Practical Implications and Value

The results of the CRISTAL trial provide practical insights for healthcare decision-makers and clinicians, highlighting the potential benefits of using enoxaparin over aspirin for VTE prevention after hip or knee arthroplasty.

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