Risk factors and predisposing conditions for VTE
| Risk factors . | Surgical . | Nonsurgical . |
|---|---|---|
| Major transient risk factors | Orthopedic, general, urologic, or gynecologic surgery (duration >45 minutes) | Immobilization with/without paresis |
| Trauma | Bedridden because of acute disease | |
| Critical illness | ||
| Major persistent | — | Cancer |
| Neurologic disease with paresis | ||
| Minor transient risk factors | Orthopedic, general, urologic, or gynecologic surgery (duration ≤45 minutes) | Limb trauma with/without plaster cast |
| Limb trauma requiring minor surgery | Pregnancy or postpartum | |
| Estrogen use for contraception or hormone therapy | ||
| Long-haul air travel | ||
| Acute infections | ||
| Minor persistent | — | Inflammatory bowel disease |
| Autoimmune disease | ||
| Predisposing conditions | — | Increasing age |
| Obesity | ||
| Heart failure | ||
| Prior VTE |
| Risk factors . | Surgical . | Nonsurgical . |
|---|---|---|
| Major transient risk factors | Orthopedic, general, urologic, or gynecologic surgery (duration >45 minutes) | Immobilization with/without paresis |
| Trauma | Bedridden because of acute disease | |
| Critical illness | ||
| Major persistent | — | Cancer |
| Neurologic disease with paresis | ||
| Minor transient risk factors | Orthopedic, general, urologic, or gynecologic surgery (duration ≤45 minutes) | Limb trauma with/without plaster cast |
| Limb trauma requiring minor surgery | Pregnancy or postpartum | |
| Estrogen use for contraception or hormone therapy | ||
| Long-haul air travel | ||
| Acute infections | ||
| Minor persistent | — | Inflammatory bowel disease |
| Autoimmune disease | ||
| Predisposing conditions | — | Increasing age |
| Obesity | ||
| Heart failure | ||
| Prior VTE |