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How edso OAS eadl to paehrpreli mdeea adn loud S?2
Repeated cessation of breathing > 10 seconds during sleep = disrupted sleep = daytime somnolence.
Diagnosis confirmed by sleep study.
Nocturnal hypoxia = systemic/pulmonary hypertension, arrhythmias (atrial fibrillation/flutter), sudden death.
Hypoxia = More EPO release = More erythropoiesis.
Daytime sleepiness, fatigue, frequent nighttime awakening, snoring, and obesity (BMI>30) are all symptoms of obstructive sleep apnea. Frequent cessations of breathing during sleep result in a decreased O2 saturation in his lungs, which causes hypoxic vasoconstriction in the pulmonary vessels, and over time this leads to irreversible pulmonary hypertension (loud S2), and the pulmonary HTN eventually causes right heart failure, which is what's causing his peripheral edema.