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Atrial fibrillation

A Canadian clinical summary of atrial fibrillation, with source-attributed priorities and explicit jurisdiction boundaries.

JurisdictionCanada
Source check2026-08-20
Clinical reviewiatroX editorial team 路 Clinical editorial review 路 reviewed 2026-08-20 路 due 2027-08-20
AudienceHealthcare professionals practising in Canada
This is an iatroX educational summary of named Canada sources, not an official guideline. It does not replace the complete source documents, local policy, specialist advice or clinical judgement. The evidence source is pan-Canadian, but formularies, funded access, referral routes, public-health directions and service availability remain provincial or territorial.

Source and scope

This summary is bounded to the recommendations, population and decisions covered by 2020 comprehensive guidelines for the management of atrial fibrillation. Apply it with the current provincial or territorial pathway where implementation differs.
sources for this section:CCS AF

Source-attributed clinical priorities

  • Confirm atrial fibrillation electrocardiographically and assess hemodynamic stability before choosing a chronic strategy.
  • Base stroke prevention on the CCS risk approach and reassess bleeding risk, renal function and interacting medicines.
  • Choose rate or rhythm control through symptoms, AF pattern, comorbidity and shared decision-making rather than a single universal sequence.
  • Document AF pattern, symptom burden and modifiable triggers as well as stroke risk.
sources for this section:CCS AF

Practical assessment and management workflow

1
Confirm AF on a 12-lead ECG or interpretable rhythm recording.
2
Assess stability, duration, reversible triggers, structural disease, thyroid function and renal function.
3
Apply the CCS CHADS-65 pathway and choose rate or rhythm control for the individual presentation.
4
Reassess symptoms, ventricular rate, anticoagulant dose, bleeding and rhythm-control toxicity.
sources for this section:CCS AF

Safety, red flags and urgent escalation

  • Perform urgent synchronized cardioversion when AF causes hemodynamic instability.
  • Check renal function, weight, age and interactions before selecting or dosing an anticoagulant.
  • Do not interrupt anticoagulation for a procedure without a documented thrombosis and bleeding plan.
sources for this section:CCS AF

Confirm the local pathway before acting

The evidence source is pan-Canadian, but formularies, funded access, referral routes, public-health directions and service availability remain provincial or territorial.
sources for this section:CCS AF

Source and implementation boundary

Read this educational summary with the linked source, current Canadian product information where medicines are involved, and the applicable provincial or territorial pathway. Local formularies, reporting duties, referral routes and service availability can differ.
sources for this section:CCS AF

Source documents

Use the linked source documents for complete recommendations, evidence grading, exclusions and implementation detail.

  1. Canadian Cardiovascular Society2020 comprehensive guidelines for the management of atrial fibrillationaccessed 2026-08-20
    view source
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