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Catheter ablation is a potentially curable treatment for Atrial Fibrillation (AF) and Flutter (Aflut). Racial disparities have been reported in the use of cardiovascular procedures. We explored such disparities in Florida.
We conducted a cross-sectional analysis of all ablations between 2006-09. We calculated the annual rate of ablations for both AF and AFlut by race. We used logistic regression to determine the odds ratio (OR) of having an ablation per disease by race adjusted for Charlson score, insurance status, and year.
We identified 923,590 subjects with AF and 28,714 with AFlut. The majority of those with AF diagnosis were White (799,479) followed by Hispanics (63,074) and Blacks (61,037). Blacks had the highest comorbidity scores compared to Whites and Hispanics (p<0.01). Ablations for AF increased in Whites, while its use decreased or stayed the same for other ethnicities. Ablations for AFlut did not change significantly for any group. The OR of having an ablation for AF in Blacks was 0.67; 95% CI 0.60-0.75 (p<0.01) and for Hispanics was 0.82; 95% CI 0.75-0.91(p<0.01) when compared to Whites. The OR of having an ablation for AFlut in Blacks was 1.08; 95% CI 0.96-1.21 (p=0.16) and for Hispanics was 0.90; 95% CI 0.78-1.08 (p=0.20) when compared to Whites.
From 2006-09, Blacks and Hispanics with AF received less catheter ablations while the same minorities with AFlut received a similar number when compared to Whites with the same insurance and comorbidity burden.
Poster Sessions, Expo North
Saturday, March 09, 2013, 10:00 a.m.-10:45 a.m.
Session Title: Arrhythmias: Basic Science and Atrial Fibrillation
Abstract Category: 5. Arrhythmias: Basic
Presentation Number: 1106-44
- 2013 American College of Cardiology Foundation