WEEKS
major trauma or surgery
1 2 3 4 5 6 7 8 9 10 11 12 …24
DVT & PE incidence average DVT & PE occur 2-4 days, over 50% occur in 1st week following trauma or surgery
anticoagulants 7-10 day for moderate to high risk surgery (AAOS, ACCP), 28 day for oncological surgery (ASCO)
filter indicated protection period grace period (sufficient to hold clot) disintegration
filter clot trapping duration
filter resorbs in 24 weeks

acute clot dissolves in 2-4 weeks