BACKGROUND: @entity955 ( @entity955 ) ablation is superior to pharmacologic therapy in achieving maintenance of normal sinus rhythm in selected @entity1 populations. However, the procedure is resource intensive, and repeat ablations are sometimes required. We examined the predictors and trends of repeat ablation using a large national administrative claims database. METHODS: Privately insured and Medicare Advantage @entity1 who underwent catheter ablation for @entity955 between January 1, 2004, and September 30, 2014, were included in the study. The primary outcome was repeat @entity955 ablation during enrollment. We examined the associations between repeat ablation and @entity1 demographics (age, gender, socioeconomic demographics), comorbid conditions (CHA2DS2-Vasc score and Charlson index), and year of the index ablation. Cox proportional hazard models were used to identify predictors of repeat ablation. RESULTS: We included 8,648 adult @entity1 in the analysis. Median age was 61.0 (interquartile range [IQR] 54-68) years, and 70.9% were @entity1 . Median follow-up was 1.1 (IQR 0.5-2.3) years. A total of 1,263 @entity1 underwent repeat ablation (14.6%) over a total of 14,280 @entity1 -years (12.1% at 1 year). The hazard ratio (HR) for repeat ablation was higher in younger @entity1 (HR 0.75 [0.61-0.91; P < .01] for age 65-75 and 0.55 [0.4-0.75; P < .001] for age >= 75 compared with age 18-54), those with higher household income (HR 1.24 [1-1.54; P < .05] for household income >=  100,000 compared with household income < 40,000), @entity1 treated in the south (HR 1.15 [1-1.31]; P < .05), and those on antiarrhythmic medications (HR 1.15 [1.01-1.31]; P < .05). In particular, younger @entity1 (ages 18-54 years) continued to undergo repeat ablations over the entire follow-up period, and the cumulative rate was approximately 40% among those followed for 5 years. Clinical characteristics including those included in the CHA2DS2-Vasc score and Charlson index did not predict likelihood of repeat ablation. The rate of repeat ablation remained constant over the available follow-up. CONCLUSION: Approximately 1 in 8 @entity1 treated with catheter ablation for @entity955 will undergo a second procedure within 1 year, although the rate is as high as 40% in young @entity1 at 5 years. The rate of repeat ablation appears to be associated with demographic characteristics (younger age and higher household income) rather than medical comorbidities.

Trends and predictors of repeat catheter ablation for XXXX .

@entity1 :: ('9606', 'Species') :: ['patients', 'patient', 'person', 'men'] @entity955 :: ('MESH:D001281', 'Disease') :: ['Atrial fibrillation', 'AF']
@entity955 :: (MESH:D001281,Disease) :: ['atrial fibrillation']
