Aspirin’s Effectiveness in VTE Prevention Varies by Procedure

“Deep vein thrombosis of the right leg” by James Heilman, MD – Own work. Licensed under Creative Commons Attribution-Share Alike 3.0 via Wikimedia Commons

A recent meta-analysis of eight randomized trials (1,408 total patients) compared aspirin to anticoagulants such as warfarin and dabigatran for preventing venous thromboembolism (VTE) after hip and knee arthroplasty and hip-fracture repair. The analysis found that the overall prophylactic power of these two medical approaches was essentially equal following major lower-extremity surgery. However, the comparison, appearing in the Journal of Hospital Medicine, found a slightly higher (but statistically nonsignificant) risk of deep vein thrombosis (DVT) with aspirin following hip-fracture repair. Conversely, the risk of bleeding after hip-fracture surgery was lower with aspirin than with anticoagulants.

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