Flashcards in Deep Vein Thrombosis Deck (9)
Who do DVTs occur in. (2)
25-50% of surgical patients.
Many non-surgical patients as well.
What is a features of below knee DVTs. (2)
65% are asymptomatic.
They rarely embolize to the lungs.
What are the risk factors for developing a DVT. (10)
Surgery (especially pelvic/orthopaedic).
What are the sings of a DVT on physical exam. (6)
What is the differential for a DV. (3)
Ruptured Baker's cyst.
Both of the above may coexist with a DVT.
What tests should be done in a patient presenting with a DVT. *(4)
Thrombophilia testing before commencing anticoagulation therapy.
Investigate for underlying malignancy.
How do you prevent DVTs. (5)
Stop the pill 4 weeks pre op.
Graduated compression stockings.
Fondaparinux (factor Xa inhibitor).
How do you treat a DVT. (4)
LMWH or fondaparinux.
Cancer patients should receive LMWH for 6 months and then review. In others start warfarin with LMWH, stop heparin when INR 2-3.
Inferior vena caval filters may be used in active bleeding, or when anticoagulants fail to minimize risk of pulmonary embolus.
Graduated compression stockings help prevent long term complications of DVT.