Atrial fibrillation and sleep-disordered breathing.

Area of Science:

• Cardiology
• Sleep Medicine
• Public Health

Background:

• Atrial fibrillation (AF) is a prevalent arrhythmia associated with aging and comorbidities like heart failure (HF), leading to significant morbidity and healthcare costs.
• AF increases risks of stroke and HF, necessitating effective management strategies focusing on rate and rhythm control.
• Sleep-disordered breathing (SDB) is frequently observed in AF patients, sharing common risk factors and comorbidities.

Purpose of the Study:

• To explore the intricate relationship between atrial fibrillation (AF) and sleep-disordered breathing (SDB).
• To investigate the prevalence and impact of SDB, including obstructive sleep apnea (OSA) and central sleep apnea (CSA), in patients with AF.
• To assess the potential benefits of SDB management, particularly continuous positive airway pressure (CPAP) therapy, on AF treatment efficacy and outcomes.

Main Methods:

• Review of existing literature on the links between AF and SDB.
• Analysis of prevalence data for SDB, OSA, and CSA in AF patient populations.
• Evaluation of studies examining the effects of AF treatment on SDB and SDB treatment on AF recurrence and management.

Main Results:

• SDB prevalence is higher in AF patients than in the general population, with OSA reported in up to 80% of cases.
• Central sleep apnea (CSA) prevalence is notably high in AF patients with heart failure and reduced left ventricular ejection fraction.
• Co-existing OSA can diminish AF treatment effectiveness and increase arrhythmia recurrence risk; CPAP therapy shows potential to mitigate these issues.

Conclusions:

• Recognizing and managing SDB is crucial for comprehensive AF care.
• Effective SDB management, including CPAP for OSA, may improve AF treatment outcomes and reduce recurrence.
• Further large-scale randomized controlled trials are needed to confirm the benefits of SDB interventions in AF patients.