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Obstructive Sleep Apnoea (OSA)

Obstructive Sleep Apnoea (OSA): Overview, Diagnosis and Treatment | SingHealth Duke-NUS Sleep Centre

Obstructive Sleep Apnoea (OSA) - How to prevent?

Obstructive Sleep Apnoea (OSA) - Diagnosis

Consult your physician if you have loud snoring or excessive daytime sleepiness despite getting enough sleep. Your physician will evaluate the possible causes and advise on the appropriate management.

Your physician may refer you to a sleep disorders clinic for a comprehensive evaluation of your problem. The evaluation usually involves an overnight sleep study. A sleep study is required for the diagnosis of OSA.


A sleep study or polysomnogram (PSG) is an overnight non-invasive diagnostic test performed in a sleep laboratory.

The PSG monitors the different stages of sleep, breathing effort, oxygen levels, heart rhythm and muscle activity during sleep. The severity of OSA can also be determined.

Obstructive Sleep Apnoea (OSA) - Preparing for surgery

Obstructive Sleep Apnoea (OSA) - Post-surgery care

Obstructive Sleep Apnoea (OSA) - Other Information

The information provided is not intended as medical advice. Terms of use. Information provided by SingHealth