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Congenital Central Hypoventilation syndrome
Background
Congenital Central Hypoventilation syndrome: Central Hypoventilation syndrome; Ondine's
Congenital central hypoventilation syndrome (CCHS) is a rare genetic condition of under-breathing involving the failure of automatic control of breathing in the brain. The incidence of CCHS is currently unknown.
The breathing abnormalities are always present during sleep, but may occur to a milder degree during wakefulness. Thus the condition may range in severity from being relatively mild during quiet sleep, with normal breathing when awake, to a complete cessation of breathing during sleep and severe under-breathing when awake. The latter may be particularly evident when feeding (especially in infancy), or when concentrating.
