Atrial Fibrillation

CHADsVASc

• Estimates stroke risk in patients with AF, possibly better than CHADs score

CHADs Score 

• Estimates stroke risk in patients with AF 

HAS-BLED 

• Estimates risk of major bleeding for patients on anticoagulation to assess risk/benefit in AF care

SPARC Tool 

• For estimating risk of stroke and the risks/benefits of antithrombotic therapy in AF patients 

• Created by Dr. Peter Loewen

CCS AF Guidelines 

• Canadian Cardiovascular Society pocket guidelines for AF management and diagnosis

Tisdale Score 

• Predicts risk of QT prolongation > 500 ms in hospitalized patients 

1. Which of the following correctly defines persistent AF?  

a) Continuous AF lasting >30 s but self-terminating within 7 days of onset 

b) Continuous AF lasting >7 days but less than 1 year 

c) Continuous AF >1 year in whom rhythm control is being pursued 

d) Continuous AF for which a therapeutic decision has been made not to pursue sinus rhythm restoration  

2. Which of the following is NOT a classic symptom of AF?  

a) Palpitations 

b) Weakness 

c) Wheezing 

d) Syncope 

3. Which of the following is a NON-modifiable risk factor for AF?  

a) Hypertension 

b) Age

c) Tobacco use 

d) Obstructive sleep apnea 

4. In which patients is rhythm control preferred over rate control?  

a) Newly diagnosed AF  

b) Highly symptomatic  

c) Paroxysmal AF and AFL 

d) All of the above 

5. Which of the following beta blockers is preferred in rate control in AF?

a) Propranolol 

b) Metoprolol

c) Sotalol 

d) Atenolol