VTE Prophylaxis Decision — Surgical Inpatients (Caprini Score) — free guideline decision tool
Stratify venous thromboembolism risk in surgical inpatients with the Caprini Risk Assessment Model and get a prophylaxis recommendation. Instant, browser-side.
Open guideline tool →Guideline-based
Implements the decision logic from published clinical guidelines.
Runs in your browser
No installation. Enter the patient's values and get a guideline recommendation instantly.
Data stays local
Nothing is uploaded. Results are for licensed clinicians only.
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Age | ≤ 40 yr |
|---|---|
| Surgery | None |
| BMI > 25 (obesity) | Yes |
| Swollen legs (current) | Yes |
| Varicose veins | Yes |
| Pregnancy or postpartum (< 1 month) | Yes |
| Recurrent miscarriage / unexplained stillbirth history | Yes |
| Oral contraceptive or HRT | Yes |
| Sepsis (< 1 month) | Yes |
| Serious lung disease / pneumonia (< 1 month) | Yes |
| Abnormal pulmonary function (COPD) | Yes |
| Acute myocardial infarction | Yes |
| Congestive heart failure (< 1 month) | Yes |
| History of inflammatory bowel disease | Yes |
| Medical patient on bed rest | Yes |
| Malignancy (past or present) | Yes |
| Confined to bed > 72 hours | Yes |
| Immobilising plaster cast (< 1 month) | Yes |
| Central venous access | Yes |
| History of VTE | Yes |
| Family history of VTE | Yes |
| Factor V Leiden mutation | Yes |
| Prothrombin G20210A mutation | Yes |
| Lupus anticoagulant | Positive |
| Anticardiolipin antibodies | Positive |
| Elevated serum homocysteine | Yes |
| Heparin-induced thrombocytopenia (HIT) | Yes |
| Other congenital / acquired thrombophilia | Yes |
| Stroke (< 1 month) | Yes |
| Elective lower-extremity arthroplasty | Yes |
| Hip, pelvis or leg fracture (< 1 month) | Yes |
| Acute spinal cord injury (< 1 month) | Yes |
| Multiple trauma (< 1 month) | Yes |
→VTE riskHigh
- Caprini score：73 points
- Risk level：High (very low 0 / low 1–2 / moderate 3–4 / high ≥ 5)
- Prophylaxis advice：Pharmacological prophylaxis (e.g. LMWH) plus mechanical prophylaxis; if bleeding risk is high, start mechanical prophylaxis and add pharmacological cover as soon as bleeding risk falls.
Common questions
What is VTE Prophylaxis Decision — Surgical Inpatients (Caprini Score)?
Stratify venous thromboembolism risk in surgical inpatients with the Caprini Risk Assessment Model and get a prophylaxis recommendation. Instant, browser-side.
How is VTE Prophylaxis Decision — Surgical Inpatients (Caprini Score) calculated? What is the core formula?
Caprini sums 1-, 2-, 3- and 5-point risk factors (age band, surgery type, comorbidities, thrombophilia, recent stroke/fracture/spinal-cord injury). Bands: very low 0, low 1–2, moderate 3–4, high ≥ 5.
When is VTE Prophylaxis Decision — Surgical Inpatients (Caprini Score) used?
Decide on VTE prophylaxis for a surgical inpatient by summing weighted risk factors.
What are the key clinical points for VTE Prophylaxis Decision — Surgical Inpatients (Caprini Score)?
High risk (≥ 5) → pharmacological prophylaxis (e.g. LMWH) plus mechanical prophylaxis. Moderate risk (3–4) → pharmacological or mechanical prophylaxis after weighing bleeding risk. A single major factor (malignancy, major orthopaedic surgery, hip/leg fracture) can reach the high-risk band. Assess bleeding risk and anticoagulation contraindications before pharmacological prophylaxis; cut-offs vary slightly between guideline versions.
What are the limits and cautions when using VTE Prophylaxis Decision — Surgical Inpatients (Caprini Score)?
For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
How is VTE Prophylaxis Decision — Surgical Inpatients (Caprini Score) calculated in practice? Can you show a worked example?
Inputs: Age ≤ 40 yr, Surgery None, BMI > 25 (obesity) Yes, Swollen legs (current) Yes, Varicose veins Yes, Pregnancy or postpartum (< 1 month) Yes, Recurrent miscarriage / unexplained stillbirth history Yes, Oral contraceptive or HRT Yes… → Result: VTE risk High（Caprini score: 73 points, Risk level: High (very low 0 / low 1–2 / moderate 3–4 / high ≥ 5), Prophylaxis advice: Pharmacological prophylaxis (e.g. LMWH) plus mechanical prophylaxis; if bleeding risk is high, start mechanical prophylaxis and add pharmacological cover as soon as bleeding risk falls.）
Run VTE Prophylaxis Decision — Surgical Inpatients (Caprini Score) now
Stratify venous thromboembolism risk in surgical inpatients with the Caprini Risk Assessment Model and get a prophylaxis recommendation. Instant, browser-side.
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.
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