12/22/2025
Untreated obstructive sleep apnea places repeated stress on the heart each night. Oxygen drops, pressure changes, and nervous system surges quietly remodel the atria over time. This process raises the risk of atrial fibrillation and makes rhythm control harder. Understanding this link helps patients address a major, often overlooked contributor to heart rhythm instability.
↘ What Happens During Obstructive Sleep Apnea
↘ 1. Intermittent Hypoxia and Oxidative Stress
↘ 2. Autonomic Nervous System Imbalance
↘ 3. Blood Pressure, Vascular Stress, and Atrial Remodeling
↘ 4. Intrathoracic Pressure and Atrial Stretch
↘ Summary Table: How OSA Promotes Atrial Fibrillation
↘ Why Treating OSA Changes A.fib Outcomes
↘ Patient Cases from Clinical Practice
↘ The Broader Metabolic and Cardiovascular Context
↘ Takeaway
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Dr. Tashko explains how untreated sleep apnea drives atrial fibrillation through hypoxia, inflammation, and atrial remodeling.