Heart Health

Early rhythm control

Applies whatever the score Always

Recommendationaf-rhythm-controlNo one has reached this rule yet

Consider early rhythm control, especially within a year of diagnosis

Clinical review

All reviewers

No clinician has signed off this rule yet. It reflects our reading of the guidelines cited below, which has not been independently checked.

What someone who reaches this rule is told

Word for word, as generated for the example person below. Figures in the text are theirs.

  • Strongly recommended

    Ask about rhythm control early rather than assuming rate control is the default — especially within the first year of diagnosis.

    The older teaching was that keeping the rate down is as good as restoring normal rhythm. EAST-AFNET 4 changed that for recently diagnosed AF: starting rhythm control — antiarrhythmic drugs or ablation — within about a year of diagnosis reduced cardiovascular death, stroke, and hospitalization compared with usual care. Catheter ablation is more effective than drugs at maintaining rhythm, and more so in younger patients and in heart failure with a reduced ejection fraction, where it improves outcomes rather than just symptoms.

    Outcome-provenTested in randomised trials measuring heart attacks, strokes, or death, not a stand-in for them.· Class I/2a· Level B-R· checked 2026-09-12

    2023 ACC/AHA/ACCP/HRS Guideline for the Diagnosis and Management of Atrial Fibrillation · Class I / 2a depending on timing and setting

An example person who reaches it

Atrial fibrillation, blood thinner not yet discussed” — an illustrative profile, not a real user.

77-year-old womanBP 142/86 on medicationLDL 130diabetes, A1c 6.8%atrial fibrillation, diagnosed10-yr PREVENT-ASCVD 13.2%

Their path through atrial fibrillation

  1. Atrial fibrillation?Yes
  2. How was it found? (the evidence differs)Clinically diagnosed
  3. CHA2DS2-VASc — untreated stroke risk above ~2% a year?Yes (score >=2 men / >=3 women)
  4. Applies whatever the scoreAlways
  5. Applies whatever the scoreAlways ← this rule
  6. Applies whatever the scoreAlways

Where it sits

Asked after: Atrial fibrillation

Sources

Cited by the recommendations above.

Review this rule

For practising clinicians. Endorse it, propose a change, or dispute it. We verify every reviewer before a review is shown, and a review stays attached to the version of the rule you saw — if the rule changes, the page says so. You'll be asked to declare any relevant interests; they're shown with your review.

Log in or create an account to submit a review. An account is how we tie a review to a person we can verify.

Runs in lib/engine/afPathway.ts as af-rhythm-control.