Mon25October0844PM 4

The CHA2DS2-VASc score enables a calculation of the risk of stroke in patients with atrial fibrillation or flutter (AF).

Which of the following patient factors has the highest weighting when calculating a score?

(Please select 1 option)

Diabetes mellitus

Female

Age of more than 75-years of age Correct

Congestive heart failure

Hypertension

Explanation

The CHA2DS2-VASc score enables a calculation of the risk of stroke in patients with atrial fibrillation or flutter (AF).

The criteria used are:

Congestive heart failure = 1 point

Hypertension = 1 point

Age >75-years of age = 2 points

Age 65-74-years of age = 1 point

Diabetes mellitus = 1 point

History of Stroke or TIA = 2 points

Sex category female = 1 point

The mean rate of stroke is 0.2, 0.6, and 2.2 % per year for CHA2DS2-VASc scores of 0, 1, and 2 respectively. However, the stroke rate can vary with study setting (i.e. community versus hospitalised), population studied and methodology.

All studies have concluded that the benefit from anticoagulation significantly exceeds the risk of bleeding for almost all patients with AF with a CHA2DS2-VASc score =2.

The anticoagulants chosen are either the non-vitamin K antagonist anticoagulants (NOACs-rivaroxaban / apixaban) or warfarin.

Answer Statistics

1

8%

2

6%

3

75%

4

11%

5

3%

Times answered: 273