💓 Atrial Fibrillation Rate/Rhythm Control Strategy
This tool gives rate-control targets/drugs, rhythm-control direction, and cardioversion anticoagulation for atrial fibrillation, branching first on hemodynamic stability.
Clinical takeaway
In pre-excitation with rapid AF, digitalis, non-dihydropyridine CCB, and amiodarone are avoided and the patient is cardioverted directly. (original synthesis · not guideline verbatim)
Loading calculator…
Paste the link in Slack, Teams, X, or LinkedIn — the preview image comes from this page’s Open Graph card.
When to use
Use to manage AF: unstable patients get emergency cardioversion, while stable patients are guided to rate or rhythm control by LVEF, symptoms, and AF duration.
How it works
Unstable → emergency synchronized cardioversion. Stable → rate control (resting < 110, drug by LVEF) ± early rhythm control if symptomatic/HF/new; cardioversion anticoagulation by AF duration (3 weeks pre + 4 weeks post if ≥ 48 h, or TEE-guided).
Key points
- In pre-excitation with rapid AF, digitalis, non-dihydropyridine CCB, and amiodarone are avoided and the patient is cardioverted directly. (original synthesis · not guideline verbatim)
- Symptomatic, comorbid-HF, or newly diagnosed patients benefit from early rhythm control (EAST-AFNET 4).
- At LVEF ≤ 40%, non-dihydropyridine CCBs are contraindicated; rate control uses β-blocker ± digitalis.
References
- Van Gelder IC, et al. 2024 ESC Guidelines for the management of atrial fibrillation. Eur Heart J 2024.
- Kirchhof P, et al. Early Rhythm-Control Therapy in Patients with Atrial Fibrillation (EAST-AFNET 4). N Engl J Med 2020.
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Hemodynamics | Unstable (hypotension/shock/acute HF/ongoing ischemia) |
|---|---|
| Left ventricular ejection fraction | LVEF > 40% |
| Symptomatic / comorbid HF / newly diagnosed early | Yes |
| Pre-excitation syndrome | Yes |
| AF duration (when planning cardioversion) | New-onset / < 48 h / no thrombus on TEE |
→DispositionEmergency synchronized cardioversion
- Emergency cardioversion：Hemodynamically unstable AF → emergency synchronized cardioversion (Class I); pre-excitation with rapid AF → direct cardioversion, avoid digitalis/non-dihydropyridine CCB/amiodarone
- Anticoagulation & precipitants：Fully assess thromboembolic risk before/after cardioversion and decide anticoagulation; correct reversible precipitants (infection, ischemia, electrolytes, etc.)
- Basis：Chinese Emergency Management Guideline for Acute Atrial Fibrillation 2024 / Chinese AF management guideline
| Hemodynamics | Stable |
|---|---|
| Left ventricular ejection fraction | LVEF ≤ 40% |
| Symptomatic / comorbid HF / newly diagnosed early | No |
| Pre-excitation syndrome | No |
| AF duration (when planning cardioversion) | ≥ 48 h or unknown duration |
→StrategyHemodynamically stable: rate/rhythm control
- Rate target：Long-term without HF: lenient target resting < 110 bpm; if still symptomatic or tachycardia-induced cardiomyopathy suspected → stricter
- Rate drugs：LVEF ≤ 40%: β-blocker and/or digitalis (non-dihydropyridine CCB contraindicated)
- Rhythm control：If minimally symptomatic, rate control first; when it is unclear whether symptoms relate to AF, attempting to restore sinus rhythm first is reasonable
Frequently asked questions
- What is Atrial Fibrillation Rate/Rhythm Control Strategy?
- This tool gives rate-control targets/drugs, rhythm-control direction, and cardioversion anticoagulation for atrial fibrillation, branching first on hemodynamic stability.
- How is Atrial Fibrillation Rate/Rhythm Control Strategy calculated? What is the core formula?
- Unstable → emergency synchronized cardioversion. Stable → rate control (resting < 110, drug by LVEF) ± early rhythm control if symptomatic/HF/new; cardioversion anticoagulation by AF duration (3 weeks pre + 4 weeks post if ≥ 48 h, or TEE-guided).
- When is Atrial Fibrillation Rate/Rhythm Control Strategy used?
- Use to manage AF: unstable patients get emergency cardioversion, while stable patients are guided to rate or rhythm control by LVEF, symptoms, and AF duration.
- What are the key clinical points for Atrial Fibrillation Rate/Rhythm Control Strategy?
- In pre-excitation with rapid AF, digitalis, non-dihydropyridine CCB, and amiodarone are avoided and the patient is cardioverted directly. (original synthesis · not guideline verbatim) Symptomatic, comorbid-HF, or newly diagnosed patients benefit from early rhythm control (EAST-AFNET 4). At LVEF ≤ 40%, non-dihydropyridine CCBs are contraindicated; rate control uses β-blocker ± digitalis.
- What are the limits and cautions when using Atrial Fibrillation Rate/Rhythm Control Strategy?
- For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
- How is Atrial Fibrillation Rate/Rhythm Control Strategy calculated in practice? Can you show a worked example?
- Inputs: Hemodynamics Unstable (hypotension/shock/acute HF/ongoing ischemia), Left ventricular ejection fraction LVEF > 40%, Symptomatic / comorbid HF / newly diagnosed early Yes, Pre-excitation syndrome Yes, AF duration (when planning cardioversion) New-onset / < 48 h / no thrombus on TEE → Result: Disposition Emergency synchronized cardioversion（Emergency cardioversion: Hemodynamically unstable AF → emergency synchronized cardioversion (Class I); pre-excitation with rapid AF → direct cardioversion, avoid digitalis/non-dihydropyridine CCB/amiodarone, Anticoagulation & precipitants: Fully assess thromboembolic risk before/after cardioversion and decide anticoagulation; correct reversible precipitants (infection, ischemia, electrolytes, etc.), Basis: Chinese Emergency Management Guideline for Acute Atrial Fibrillation 2024 / Chinese AF management guideline） Inputs: Hemodynamics Stable, Left ventricular ejection fraction LVEF ≤ 40%, Symptomatic / comorbid HF / newly diagnosed early No, Pre-excitation syndrome No, AF duration (when planning cardioversion) ≥ 48 h or unknown duration → Result: Strategy Hemodynamically stable: rate/rhythm control（Rate target: Long-term without HF: lenient target resting < 110 bpm; if still symptomatic or tachycardia-induced cardiomyopathy suspected → stricter, Rate drugs: LVEF ≤ 40%: β-blocker and/or digitalis (non-dihydropyridine CCB contraindicated), Rhythm control: If minimally symptomatic, rate control first; when it is unclear whether symptoms relate to AF, attempting to restore sinus rhythm first is reasonable）