not meant to treat anything, just prevent PE
>10 differents<unk> s now in use
most new ones are retrievable
recent marked increase in<unk>  use (since 2003 introduction of retrievable<unk> s)
prophylactic<unk>  uses expanding in spinal surgery, bariatric surgery and percutaneous endovenous intervention
IVC filter
Thrombolytics
Low molecular weight heparin
Unfractionated heparin
Enoxaparin
Argatroban
Unfractionated heparin reversal
Apixaban