This review article provides an overview on the published clinical risk scores related to outcomes of rhythm control strategy or AF progression
Patients with atrial fibrillation ( AF ) are commonly managed with rhythm control strategy , but the natural history of this common arrhythmia leads itself to progression from paroxysmal to persistent or permanent AF , and recurrences are evident despite rhythm control treatments using cardioversion or catheter ablation .
Numerous clinical factors have been associated with outcomes of rhythm control or arrhythmia progression in patients with AF .
The more common factors have been used to formulate risk stratification scores , to help predict the outcomes of rhythm control treatments  or AF progression .
Assessment of clinical factors associated with a successful catheter ablation outcome in younger patients with atrial fibrillation.
BACKGROUND Catheter ablation is now an alternative approach to antiarrhythmic drug therapy for patients with symptomatic atrial fibrillation ( AF ) . We focused on younger patients in whom the prevalence of AF is low , and we sought clinical factors associated with unsuccessful ablation outcomes . METHODS AND RESULTS Among 1983 consecutive symptomatic patients who underwent AF ablation procedures , 95 patients ( 4.8 % ) , age ≤ 40 years , were prospect ively included . Of them , 64 had paroxysmal AF , and the remaining 31 had persistent AF . All patients underwent pulmonary vein isolation and cavotricuspid isthmus ablation . When AF recurred , redo ablations were performed if the patients desired . The mean number of ablation procedures was 1.3 ± 0.6 times per patient . During the follow-up of 40 [ 27.8 - 49.6 ] months , sinus rhythm was maintained in 86 patients ( 90.5 % ) without any antiarrhythmic drugs , but not in the remaining 9 patients ( 9.5 % ) . Low body mass index ( BMI ) and persistent AF were associated with unsuccessful ablation procedures . In multivariate logistic regression analysis , a low BMI had the most significant value , with an odds ratio of 7.33 ( p=0.022 ) . The receiver operating characteristic curve demonstrated a BMI cut point of 22.1 kg/m(2 ) , with an area under the curve of 0.773 . CONCLUSION In symptomatic younger AF patients , a low BMI was an independent clinical factor for unsuccessful AF ablation outcomes
This review article provides an overview on the published clinical risk scores related to outcomes of rhythm control strategy or AF progression
Patients with atrial fibrillation ( AF ) are commonly managed with rhythm control strategy , but the natural history of this common arrhythmia leads itself to progression from paroxysmal to persistent or permanent AF , and recurrences are evident despite rhythm control treatments using cardioversion or catheter ablation .
Numerous clinical factors have been associated with outcomes of rhythm control or arrhythmia progression in patients with AF .
The more common factors have been used to formulate risk stratification scores , to help predict the outcomes of rhythm control treatments  or AF progression .