Conditions or risk factors that should be considered when selecting the therapeutic approach in symptomatic outpatients with diagnosed IDDVT
| A) Conditions favoring full anticoagulation for 3 mo (as for proximal DVT) . |
|---|
| Previous VTE events |
| Idiopathic event |
| Secondary event but with persistently hampered complete mobilization |
| Event occurring during pregnancy or puerperium |
| Distal thrombosis involving the popliteal trifurcation |
| Thrombosis involving >1 calf vein |
| Distal thrombosis present in both legs |
| Active cancer or chemotherapy |
| Presence of predisposing diseases (eg, inflammatory bowel diseases) |
| Known thrombophilic alterations |
| B) Conditions favoring shorter anticoagulation |
| First thrombotic event, if: |
| secondary to surgery or to other removable risk factors (eg, plasters, immobilization, trauma, long trip) |
| event occurring during contraceptive or replacement hormonal therapy (provided the therapy has been interrupted) |
| with subsequent full mobilization |
| no difference between muscular or tibial-peroneal veins |
| A) Conditions favoring full anticoagulation for 3 mo (as for proximal DVT) . |
|---|
| Previous VTE events |
| Idiopathic event |
| Secondary event but with persistently hampered complete mobilization |
| Event occurring during pregnancy or puerperium |
| Distal thrombosis involving the popliteal trifurcation |
| Thrombosis involving >1 calf vein |
| Distal thrombosis present in both legs |
| Active cancer or chemotherapy |
| Presence of predisposing diseases (eg, inflammatory bowel diseases) |
| Known thrombophilic alterations |
| B) Conditions favoring shorter anticoagulation |
| First thrombotic event, if: |
| secondary to surgery or to other removable risk factors (eg, plasters, immobilization, trauma, long trip) |
| event occurring during contraceptive or replacement hormonal therapy (provided the therapy has been interrupted) |
| with subsequent full mobilization |
| no difference between muscular or tibial-peroneal veins |