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August 1, 2022Journal of Innovations in Cardiac Rhythm Management8 citationsOpen Access

Impact of Chronic Obstructive Pulmonary Disease on Atrial Fibrillation Ablation Outcomes According to the National Readmission Database

AMAhmed MaraeyMMMuhammad Haisum MaqsoodMKMahmoud Khalil

Key Result

In patients undergoing atrial fibrillation ablation, comorbid chronic obstructive pulmonary disease was associated with an increased risk of 180-day all-cause readmission (aHR 1.40) but not readmission due to recurrent AF.

Study Design

Type

Cohort (n=18,224)

Multicenter

Yes

Structured PICO

Does a diagnosis of COPD increase the risk of readmission and complications in patients undergoing catheter ablation for atrial fibrillation?

P
Population
18,224 admissions with a diagnosis of atrial fibrillation who underwent catheter ablation, mean age 68, United States (National Readmission Database 2016-2018). Excluded admissions with other cardiac arrhythmias (SVT, VT, atrial flutter, etc.) and prior or current implantation of a pacemaker or ICD.
I
Intervention
Catheter ablation for atrial fibrillation in patients with a diagnosis of chronic obstructive pulmonary disease (COPD)
C
Comparator
Catheter ablation for atrial fibrillation in patients without a diagnosis of chronic obstructive pulmonary disease (COPD)
O
Outcome
180-day readmission with recurrent AF, AF re-ablation, and all-cause readmissions after index admissions for AF ablationhard clinical

In patients undergoing atrial fibrillation ablation, comorbid COPD is associated with higher all-cause readmission and periprocedural complications, but not with an increased risk of readmission for recurrent AF.

Main Result

Effect estimate: aHR 1.40 (95% CI 1.26-1.56)

Absolute Event Rate: 44% vs 25%

p-value: p=<0.001

Limitations

  • Observational study subject to confounding bias
  • Severity of COPD and other comorbidities, anti-arrhythmic medication use, and medication compliance could not be assessed
  • Administrative database is subject to coding errors
  • Atrial fibrillation recurrence without admission was not captured
  • Follow-up period was relatively short (6 months)
  • Observational study subject to confounding bias despite statistical adjustment
  • Severity of COPD and other comorbidities, anti-arrhythmic medication use, and medication compliance could not be assessed due to the administrative nature of the database
  • NRD might over- or underestimate the overall difference in outcomes
  • AF recurrence without admission was not captured
  • Follow-up period was relatively short as admissions cannot be linked across years

Abstract

There is a paucity of contemporary data studying the association between COPD and outcomes of AF ablation. The objective of this study was to investigate the impact of COPD on AF ablation outcomes using a large nationwide database. This study was a retrospective analysis of the National Readmission Database for the years 2016-2018 and included patients admitted with a diagnosis of AF who underwent catheter ablation. Admissions were stratified according to COPD diagnosis using International Classification of Diseases, 10th Revision, Clinical Modification codes. Multivariate, linear, Cox, and logistic regressions were performed to study the impact of COPD on AF ablation. A total of 18,224 admissions (mean age, 68 years; standard deviation, 10 years) were included, of whom 3,494 (19%) had a diagnosis of COPD. The COPD group was older (72 8 vs. 67 11 years, P < .001) and more likely to have congestive heart failure (73% vs. 44%, P < .001) and renal failure (31% vs. 17%, P < .001).

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Cite This Study

Maraey et al. (2022) conducted a cohort in Atrial Fibrillation (n=18,224). Chronic Obstructive Pulmonary Disease (COPD) vs. No COPD was evaluated on 180-day all-cause readmission (aHR 1.40, 95% CI 1.26-1.56, p=<0.001). In patients undergoing atrial fibrillation ablation, comorbid chronic obstructive pulmonary disease was associated with an increased risk of 180-day all-cause readmission (aHR 1.40) but not readmission due to recurrent AF.

synapsesocial.com/papers/6a1afb8c739ab56a908635a9https://doi.org/10.19102/icrm.2022.130806
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