| Characteristic | Effect on RFA Efficacy | Level of Confidence |
|---|---|---|
| Gender | None |
|
| Age1 | None |
|
| Structural heart disease | None |
|
| AF duration (time since diagnosis) | None |
|
| Paroxysmal vs. nonparoxysmal AF2 | Better outcome with paroxysmal AF |
|
| Reduced left ventricular function3 | Unknown | INSF |
| Increased left atrial diameter4 | Unknown | |
| INSFHypertension | Unknown | INSF |
Most patients included in the studies were between 40 and 70 years of age.
Few patients in the studies had nonparoxysmal AF.
Few patients in the studies had ejection fractions below 40%.
Few patients in the studies had left atrial diameters above 60 mm.
RFA = radiofrequency ablation.
AF = atrial fibrillation.
INSF = insufficient evidence.
From: Radiofrequency Ablation for Atrial Fibrillation
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