What causes hypoventilation during sleep?

Updated: Dec 28, 2018
  • Author: Jazeela Fayyaz, DO; Chief Editor: Guy W Soo Hoo, MD, MPH  more...
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Answer

Hypoventilation and oxygen desaturation deteriorate during sleep secondary to a decrement in ventilatory response to hypoxia and increased PaCO2. In addition, diminished muscle tone develops during REM sleep, which further exacerbates hypoventilation secondary to insufficient respiratory effort.


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