Risk for VTE is highest in the first 3 mo after surgery.
Executive summary of ACCP antithrombotic guidelines (8th edition, 2008):
ACCP vs. AAOS guidelines: see 2009 Chest article comparing ACCP vs. AAOS guidelines for thromboprophylaxis in knee and hip arthroplasty.
- i. Guidelines differ in a few key ways, mainly surrounding the issue of DVT as a surrogate marker for PE.
- ii. ACCP guidelines interpret a new DVT as a failure of thromboprophylaxis, whereas the AAOS guidelines do not feel that DVT is clearly predictive of PE and therefore should not be considered a failure of thromboprophylaxis
(Victoria Kelly MD, 9/2/10)