Central sleep apnea

Central sleep apnea (CSA) or central sleep apnea syndrome (CSAS) is a sleep-related disorder in which the effort to breathe is diminished or absent, typically for 10 to 30 seconds either intermittently or in cycles, and is usually associated with a reduction in blood oxygen saturation. CSA is usually due to an instability in the body's feedback mechanisms that control respiration. Central sleep apnea can also be an indicator of Arnold–Chiari malformation.

Not to be confused with Central hypoventilation syndrome.
Central sleep apnea
Other namesPrimary alveolar hypoventilation, alveolar hypoventilation secondary to neurologic disease, idiopathic acquired central hypoventilation syndrome
SpecialtyNeurology 
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