Warfarin_Bleeding_Risk_Score_guideline v.1
Predicts hemorrhage risk in case of Warfarin therapy, based on patient age, history of CVA or GI.
To predict hemorrhage risk in case of Warfarin therapy, based on patient age, history of CVA or GI.
The Warfarin bleeding risk score calculator is based on the Outpatient Bleeding Risk Index and consists of the following factors: - Age – patients aged 65 or more are more predisposed to bleeding; - Personal history of cerebrovascular accident (CVA); - Personal history of gastrointestinal bleeding; - Any of the following present: recent MI, anemia with HCT <30%, Creat >1.5, Each of th above factors are given 1 point when present. Therefore, the score ranges from 0 to 4. The potential bleeding risk at 3 and 12 months can be found in the table below: Score 3 Month Risk 12 Month Risk 0 2% 3% 1 – 2 5% 12% 3 - 4 23% 48%
Beyth RJ, Quinn LM, Landefeld CS. Prospective evaluation of an index for predicting the risk of major bleeding in outpatients treated with warfarin. Am J Med. 1998 Aug;105(2):91-9. doi: 10.1016/s0002-9343(98)00198-3. PMID: 9727814. Wells PS, Forgie MA, Simms M, Greene A, Touchie D, Lewis G, Anderson J, Rodger MA. The outpatient bleeding risk index: validation of a tool for predicting bleeding rates in patients treated for deep venous thrombosis and pulmonary embolism. Arch Intern Med. 2003 Apr 28;163(8):917-20. doi: 10.1001/archinte.163.8.917. PMID: 12719200.
openEHR-EHR-OBSERVATION.warfarin_bleeding_risk, openEHR-EHR-EVALUATION.warfarin_bleeding_risk_assessment
