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- Title
California Study of Ablation for Atrial Fibrillation : Re-Hospitalization for Cardiac Events (CAABL-CE).
- Authors
Srivatsa, Uma N.; Guibo Xing; Amsterdam, Ezra; Chiamvimonvat, Nipavan; Pezeshkian, Nayereh; Fan, Dali; White, Richard H.
- Abstract
Background: Catheter ablation (ABL) for non-valvular (NV) atrial fibrillation (AF) improves rhythm control. Our aim was to compare rehospitalization for heart failure (HF), acute coronary syndrome (ACS), or recurrent AF among patients with NVAF who underwent ABL versus controls. Methods: From the Office of Statewide Planning and Development (OSHPD) database, we identified all patients who had at least one hospitalization for AF between 2005-2013. Patients who subsequently underwent ABL were compared to controls (up to fivematched controls by age, sex and duration of AF between diagnosis and time of ABL). Cases with valve disease, open maze, other arrhythmias, or implanted cardiac devices were excluded. Pre-specified clinical outcomes including readmission for HF, ACS, severe or simple AF (severe = with HF or ACS; simple= without HF or ACS)were assessed using a weighted proportional hazard model adjusting for number of hospital admissions with AF before the ABL, calendar year of ABL, and presence of chronic comorbidities. Results: The study population constituted 8338 cases and controls, with mean 3.5+ 1 patient-year follow up. In the ABL cohort, there was lower risk of re-hospitalizations for HF, HR=0.55(95%CI: 0.43-0.69,); ACS,HR=0.5(95%CI: 0.35-0.72,); severe AF [HR=0.86 (CI:0.74-0.99), and higher for simple AF, HR=1.25 (CI:1.18-1.33). Conclusion: In patients with NVAF, although ABL is associated with increased risk of re-hospitalization for simple AF, ABL was associated with a significant reduction in the risk of re-hospitalization for HF, ACS and severe AF. These findingsrequireconfirmation in a prospective clinical trial.
- Subjects
ATRIAL fibrillation; CATHETER ablation; PATIENT readmissions
- Publication
JAFIB: Journal of Atrial Fibrillation, 2018, Vol 11, Issue 1, p12
- ISSN
1941-6911
- Publication type
Article
- DOI
10.4022/jafib.2036