Caprini Risk Assessment Model (perioperative VTE risk)
Perioperative VTE risk score guiding the choice of thromboprophylaxis in surgical patients.
About this calculator
The Caprini score assesses perioperative venous thromboembolism (VTE) risk in surgical patients. Developed by Caprini (Dis Mon, 2005) and validated in 19,000+ patients. The score uses 38 risk factors weighted 1 to 5 points: age, BMI, varicose veins, cancer, prior VTE, thrombophilia, immobilization, type of surgery, and others. Interpretation. 0 – very low (VTE <0.5%), early ambulation. 1-2 – low (1.5%), mechanical prophylaxis (compression stockings, intermittent compression). 3-4 – moderate (3%), pharmacologic prophylaxis with LMWH (enoxaparin 40 mg or dalteparin 5000 IU once daily) or UFH. 5+ – high (>6%), 7-14 days post-discharge prophylaxis; in cancer patients up to 30 days. Clinical use. ACCP CHEST 2012, updated 2020 – primary tool in general surgery, gynecology, urology, plastic surgery, bariatrics. In orthopedics (TKA, THA, hip fracture) separate scores or fixed prophylaxis are used regardless of Caprini. Limitations. Not validated for non-surgical patients – Padua is used for hospitalized medical patients. Does not capture COVID-19 as a risk factor (validation predated the pandemic). Vitamin K antagonists and DOACs are not standard prophylaxis options in the original scoring framework.
Source
Formula version: caprini-2005-pannucci-2011-v1