Saturday, June 9, 2018

Caprini risk score

Q: What is Caprini risk score?

Answer: The Caprini risk score is a risk assessment tool for the occurrence of venous thromboembolism (VTE) among surgical patients. It comprehensively takes into account of many variables including

  •  Stroke (in last four weeks)
  •  Fracture of the hip, pelvis, or leg
  •  Elective arthroplasty or Arthroscopic surgery
  •  Acute spinal cord injury (in last four weeks)
  •  Age
  •  Prior episodes of VTE
  • Positive family history for VTE
  • Prothrombin 20210 A
  • Factor V Leiden
  •  Lupus anticoagulants
  • Anticardiolipin antibodies
  •  High homocysteine in the blood
  • Heparin-induced thrombocytopenia
  • Other congenital or acquired thrombophilia
  • Laparoscopy lasting more than 45 minutes
  • General surgery lasting more than 45 minutes
  • Cancer
  • Plaster cast
  • Bedbound for more than 72 hours
  • Central venous access
  • BMI > 25 Kg/m2
  • Edema in the lower extremities
  • Varicose veins
  • Pregnancy
  • Post-partum
  • Oral contraceptive or Hormonal therapy
  • Unexplained or recurrent abortion
  • Sepsis (in last four weeks)
  • Serious lung disease (abnormal PFT) or pneumonia (in last four weeks) 
  • Acute myocardial infarction
  • Congestive heart failure
  • Bed rest
  • Inflammatory bowel disease

Score 0-1: Low risk of VTE
Score 2: Moderate of VTE
Score 3-4: High risk of VTE
Score ≥ 5: Highest risk for VTE

Online calculators are easily available at various search engines.


1. Caprini JA, Arcelus JI, Hasty JH, Tamhane AC, Fabrega F (1991). "Clinical assessment of venous thromboembolic risk in surgical patients.". Semin Thromb Hemost. 17 Suppl 3: 304–12. 

2. Caprini JA (2005). "Thrombosis risk assessment as a guide to quality patient care.". Dis Mon. 51 (2-3): 70–8.

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