cha2ds2-vasc

CHA2DS2-VASc score for determining stroke risk in patients with non-valvular AF

scoring system

  • acronym stands for:
    • Congestive heart failure/left ventricular dysfunction, Hypertension, Age ≥75 [doubled], Diabetes, Stroke [doubled] – Vascular disease, Age 65–74, and Sex category [female]).1)
  • score 1 point for each item present, but 2 points for age > 74yrs and for PH stroke or TIA:
PH congestive cardiac failure
PH hypertension
age > 74 yrs
diabetes mellitus
PH stroke (CVA) or transient ischaemic attack (TIA)
PH vascular disease
age > 65-74 yrs
sex - female

risk of stroke in patients with AF

score annual risk of stroke if no anticoagulation
0 0.8%
1 1.8%
2 2.7%
3 3.2%
4 4.0%
5 6.7%
6 9.8%
7 9.6% (yep less than score of 6!)
8 6.7% (yep less than score of 6 or 7!)
9 15.2%
  • most advise commencing anticoagulation in AF patients if CHA2DS2-VASc score is 2 or more and there are no significant C/I to warfarin - see antithrombotic Rx for prevention of stroke
  • those with a CHA2DS2-VASc score of 1 are “low-mod. risk” and should consider antiplatelet or anticoagulation Rx
1)
Lip GY, Nieuwlaat R, Pisters R, Lane DA, Crijns HJ. Refining clinical risk stratification for predicting stroke and thromboembolism in atrial fibrillation using a novel risk factor-based approach: the Euro Heart Survey on Atrial Fibrillation. Chest 2010;137:263-272
cha2ds2-vasc.txt · Last modified: 2014/04/04 16:20 (external edit)