Uemura et al reported predictors for atrial fibrillation following catheter ablation. The predictors for recurrence varied with age and type of atrial fibrillation. The authors are from Oita University in Japan.
Patient selection: history of atrial fibrillation status post catheter ablation
Parameters for categorizing patients:
(1) age of the patient in yaers
(2) type of atrial fibrillation: paroxysmal vs persistent
Type of AF
Age <= 75 years
Age > 75 years
paroxysmal
female sex and diabets
diabetes
persistent
therapy with a renin-angiotensin system inhibitor
none
The lowest recurrence rate was for paroxysmal AF in a patient <= 75 years of age.
The duration of follow-up is important since recurrence tends to gradually increase over time.
Type of AF
Age
1-year recurrence-free survival
paroxysmal
<= 75 years
90%
paroxysmal
> 75 years
80%
persistent
<= 75 years
75%
persistent
> 75 years
85%
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