CHA2DS2-VASc Calculator - Calculates stroke risk for patients with atrial fibrillation afib. Although this risk level self-assessment is not intended to replace the essential risk assessment you need with your healthcare provider, it can help you visualize the risks for stroke you may be facing.

HAS-BLED is a scoring system developed to assess 1-year risk of major bleeding in patients taking anticoagulants with atrial fibrillation.

The higher your levels, the higher you are at risk.

The CHA2DS2-VASc score is a clinical risk assessment tool used to estimate the risk of stroke in patients with atrial fibrillation (AF). It is an updated version of the original CHADS2 score, which was developed in 2001. The CHA2DS2-VASc score was developed in 2010 and has been shown to be more accurate than the CHADS2 score in predicting stroke risk.

The CHA2DS2-VASc score is calculated by assigning points to the following risk factors:

* Congestive heart failure: 1 point

* Hypertension: 1 point

* Age: 1 point for age 65-74 years, 2 points for age ≥75 years

* Diabetes mellitus: 1 point

* Stroke or transient ischemic attack (TIA): 2 points

* Vascular disease: 1 point for peripheral artery disease, aortic plaque, or carotid artery stenosis

* Age: 1 point for age 65-74 years, 2 points for age ≥75 years

* Sex category: 1 point for female sex

The total CHA2DS2-VASc score is the sum of the points assigned to each risk factor. A score of 0-1 indicates a low risk of stroke, a score of 2-3 indicates an intermediate risk of stroke, and a score of ≥4 indicates a high risk of stroke.

The CHA2DS2-VASc score is used to guide decisions about anticoagulation therapy in patients with AF. Patients with a CHA2DS2-VASc score of ≥2 are typically recommended to receive anticoagulation therapy, while patients with a score of 0-1 may not need anticoagulation therapy.

HAS-BLED Score Calculator

The HAS-BLED score is a clinical risk assessment tool used to estimate the risk of bleeding in patients with AF who are taking anticoagulation therapy. It was developed in 2010 and has been shown to be accurate in predicting bleeding risk.

The HAS-BLED score is calculated by assigning points to the following risk factors:

* Hypertension: 1 point

* Abnormal renal function: 1 point (creatinine clearance <60 mL/min)

* Stroke: 1 point

* Bleeding history: 1 point

* Labile INR: 1 point (INR >3.5 on two or more occasions)

* Elderly: 1 point (age ≥65 years)

* Drugs or alcohol: 1 point (excessive alcohol intake or use of antiplatelet agents or NSAIDs)

The total HAS-BLED score is the sum of the points assigned to each risk factor. A score of 0-2 indicates a low risk of bleeding, a score of 3-4 indicates an intermediate risk of bleeding, and a score of ≥5 indicates a high risk of bleeding.

The HAS-BLED score is used to guide decisions about anticoagulation therapy in patients with AF. Patients with a HAS-BLED score of ≥3 are typically recommended to receive a lower dose of anticoagulation therapy or to be monitored more closely for bleeding.