Rising Comorbidity Burden in Inpatient Atrial Fibrillation Catheter Ablation: Temporal Trends and In-Hospital

Eran Leshem1,2, Bar Ehrenberg1,2, Adam Folman1,2

  • 1Technion Israel Institute of Technology, The Ruth and Bruce Rappaport Faculty of Medicine, Technion City, Haifa, Israel.

Insights

Catheter ablation (CA) for atrial fibrillation (AF) is increasingly performed in patients with high comorbidity burden. This trend is associated with increased complications and mortality, necessitating careful risk assessment.

Area of Science:

  • Cardiology
  • Health Services Research

Background:

  • Catheter ablation (CA) for atrial fibrillation (AF) has seen technical advancements, yet success rates remain stagnant.
  • Treating elderly patients with multiple comorbidities may reduce CA efficacy and increase complication risks.

Purpose of the Study:

  • To analyze trends in comorbidity burden among patients undergoing inpatient CA for AF.
  • To assess the association between comorbidity burden and in-hospital outcomes.

Main Methods:

  • Analysis of 64,995 inpatient CA procedures for AF from the National Inpatient Sample (2016-2021).
  • Comorbidity burden evaluated using a standardized index; outcomes compared between high and low burden groups.
  • Annual trends in high comorbidity burden patient rates calculated.

Main Results:

  • The proportion of AF CA patients with high comorbidity burden rose from 11.7% (2016) to 22.1% (2021).
  • High comorbidity burden patients experienced higher total complications (14.2% vs. 7.8%) and in-hospital mortality (1.5% vs. 0.2%).
  • Complications were driven by vascular, infectious, and respiratory issues, not cardiac ones.

Conclusions:

  • Inpatient AF CA is increasingly performed in patients with significant comorbidities.
  • Preprocedural risk-benefit assessment is crucial for optimizing outcomes in high-comorbidity patients.
Abstract

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