Background: Readmissions constitute a major healthcare burden among patients undergoing cardiac ablation for atrial fibrillation (AF) and/ or atrial flutter (Aflutter). We aimed to study the important independent predictors affecting readmissions in this study population.
Methods: All adult patients readmitted within 30 days after undergoing cardiac ablation for AF and/or Aflutter were included from the National Readmission Database (2014). ICD9 codes were used to identify AF, Aflutter, cardiac ablation, and the etiologies for readmission based on their primary diagnosis. Multivariate logistic regression was further utilized to identify predictors of readmission.
Results: A total of 17,478 admissions were identified for cardiac ablation for AF and Aflutter during January and November of 2014. About Twelve percent (2,089) were readmitted within 30-days. Cardiac conditions represented more than 50% of the etiologies for 30-day readmission; these include congestive heart failure (18.4 %), atrial fibrillation (13.7%), and atrial flutter (5.2%), among others. We found that the presence of congestive heart failure, hypertension, diabetes, acute respiratory failure, end stage renal disease, chronic lung disease and peripheral vascular disease were important independent predictors for a readmission within 30 days of discharge. Weekend admission, length of stay more than 3 days, female gender, and age more than 75 years were also associated with a significant risk for readmission.
Conclusion: Almost 20% of patients were readmitted with atrial fibrillation or atrial flutter. End stage renal disease, congestive heart failure, weekend admission and a length of stay of more than 3 days are independent predictors for readmission