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Obstructive sleep apnea is recognized as a heterogeneous disease presenting with varying underlying risk factors, phenotypes, and responses to therapy. This clinical variance is in part due to the complex pathophysiology of sleep apnea. While multiple anatomical issues can predispose to the development of sleep apnea, factors that control the airway musculature also contribute via different pathophysiologic mechanisms. As sleep apnea does not occur during wakefulness, the impact of sleep stages on respiration is of critical importance. Altogether, understanding sleep apnea pathophysiology helps to guide current treatment modalities and helps identify potential targets for future therapies. |
