Obstructive Sleep Apnoea (OSA)

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South Africa has a population of approximately 53 000 000, about 43% aged > 30 years. The number of individuals over the age of 30 years with OSA in South Africa can be estimated in excess of 675 000.
A very small number of these have been investigated or treated for OSA.


Approximately 2% of women and 4% of men meet diagnostic criteria for OSA (daytime sleepiness and an AHI of more than 5 / hour). There is evidence that OSA is more prevalent and severe in blacks. 82% of men and 93% of women with severe OSA never had a diagnosis made...

What are the signs of sleep apnea?
    • Feeling excessively sleepy or tired during the day in spite of a full night’s sleep.
    • Gasping, choking or snorting during sleep.
    • Waking up tired or with a headache.
    • Falling asleep in inappropriate situations (movies, church, sitting quietly) or without meaning to sleep.
    • Problems with memory and concentration.
    • Being ill-tempered or irritable.
    • Personality changes.
    • Aggressiveness, anxiety, irritability.
    • Depression.
    • Recurrent awakening at night.
    • Night Sweats.
    • Weight increase.
    • Impotence / ↓libido (1/3)
    • Dry mouth / drooling.
Is OSA life threatening?

Yes, OSA has been linked to a number of serious life threatening conditions, including high blood pressure, heart disease, stroke, type 2 diabetes and depression.

Studies have linked this tiredness to increased occurrence of traffic accidents.

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