What is the CHA2DS2-VASc score used for?

It is used to estimate the risk of stroke in patients with atrial fibrillation and to determine if anticoagulation therapy is necessary.

← Todas as Ferramentas

MédicoDoctorCardiologistNeurologist

CHA2DS2-VASc Score Calculator

Assess the risk of stroke in patients with non-valvular atrial fibrillation to guide anticoagulation therapy decisions.

Atrial fibrillation (Afib) significantly increases the risk of blood clots forming in the heart, which can travel to the brain and cause a stroke. The CHA2DS2-VASc score is the clinical standard for quantifying this risk. It looks at various health factors—such as age, high blood pressure, and history of heart failure—to determine if the benefits of blood-thinning medication outweigh the risks of bleeding.

Apenas para uso educacional. Esta ferramenta não substitui o julgamento clínico ou protocolos locais.

Congestive heart failure / LV dysfunction+1 Points

Hipertensão+1 Points

Idade ≥ 75+2 Points

Diabetes mellitus+1 Points

Stroke/TIA/thromboembolism+2 Points

Vascular disease (MI/PAD/aortic plaque)+1 Points

Age 65–74+1 Points

Sex category: female+1 Points

Age 65–74 and Age ≥ 75 are mutually exclusive.

Result

CHA₂DS₂-VASc Score: 0

ItemsNone selected

Como funciona

The calculator assigns 1 or 2 points to different risk factors. Most notably, a history of stroke or being 75 or older counts for 2 points each, while other factors count for 1.

Fórmula de cálculo

Sum of risk factors (max 9 points)

Exemplos de cálculo

1. **High Risk**: Age 76, Htn, and Diabetes = **Score 4**.

Por que usar essa ferramenta no seu dia a dia?

Prevenção informada. Este serviço transforma históricos médicos complexos em uma pontuação de risco simples e acionável, permitindo conversas que salvam vidas entre cardiologistas e seus pacientes.