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Atrial Fibrillation Among ICU Patients with Type 2 Respiratory Failure: Who Is at Risk and What Are the Outcomes?
Oral Mentes1, Deniz Celik2, Murat Yıldız3
1Department of Intensive Care, Gulhane Training and Research Hospital, 06010 Ankara, Turkey.
Diagnostics (Basel, Switzerland)
|July 12, 2025
Summary
Atrial fibrillation (AF) is common in patients with hypercapnic type 2 respiratory failure, significantly increasing mortality risk. Early screening for AF during intensive care unit admissions is crucial for better patient outcomes.
Area of Science:
- Critical Care Medicine
- Cardiology
- Pulmonology
Background:
- Atrial fibrillation (AF) is a common comorbidity in patients with hypercapnic type 2 respiratory failure.
- AF can negatively impact patient outcomes in this population.
- Understanding the clinical features and prognostic value of AF is essential.
Purpose of the Study:
- To investigate the clinical characteristics of patients with hypercapnic type 2 respiratory failure and atrial fibrillation.
- To determine the prognostic significance of atrial fibrillation in this patient group.
- To evaluate the association between AF and mortality risk.
Main Methods:
- Retrospective, single-center study of 200 adult patients with hypercapnic type 2 respiratory failure.
- Patients categorized based on the presence or absence of atrial fibrillation.
- Demographic, clinical, laboratory, echocardiographic data, and outcomes were analyzed.
- Kaplan-Meier survival analysis and Cox regression identified mortality predictors.
Main Results:
- Atrial fibrillation was present in 50.5% of patients.
- AF patients were older, had more comorbidities, and higher rates of heart failure.
- AF was associated with poorer survival and a 1.6-fold increased mortality risk.
- Advanced age and low hemoglobin independently predicted mortality.
Conclusions:
- Atrial fibrillation is prevalent in type 2 respiratory failure and independently associated with increased mortality.
- Anticoagulant treatment for AF was underutilized in this cohort.
- Active screening for AF in ICU patients with respiratory failure is recommended.
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