Dr Richard Bogle PhD FRCP FESC FACC DHMSA
Consultant Cardiologist
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AF Risk Calculator

QSTROKE provides a valid measure of absolute stroke risk in the general population of patients without a prior history of cerebrovascular disease. It also shows some improvement on CHADS2 and CHA2DS2VASc for patients with atrial fibrillation for whom anticoagulation may be required.

CHADS2: CHADS2 is a means of determining an AF patient's risk of stroke based on comorbidities. CHADS2 developed and validated by Gage et.al., is a system for establishing the risk of stroke in patients with non- rheumaticatrial fibrilation. Patients are awarded points based on comorbidities.

CHADSVASc: CHADS VASc is a newer risk assessment system which puts greater emphasis on advanced age. CHADS VASc developed by Lip et. Al., is a refinement of the older CHADS2 score which includes additional stroke risk factors and puts greater emphasis on age as a risk factor.


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