Obesity Hypoventilation Syndrome (OHS) | ResMed

Obesity hypoventilation syndrome (OHS)

As the name suggests, obesity hypoventilation syndrome (OHS) affects people who are overweight or obese.

Hypoventilation means that breathing is too shallow or too slow. Because the body needs to work harder to breathe, the respiratory system* becomes exhausted and the body ends up with high levels of carbon dioxide in the blood.

Around 90% of patients with OHS also have obstructive sleep apnea (OSA).


Getting your therapy equipment

If you've been diagnosed with OHS, talk to your provider about choosing the right therapy device and mask.

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What is obesity hypoventilation syndrome (OHS)?

Learn about the symptoms associated with OHS and more.

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Treatment options for obesity hypoventilation syndrome

The good news is that even if you have OHS, studies have shown that there are treatment options available.

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Why is treatment important?

OHS places a lot of strain on your organs and can affect your ability to do some of the activities you love.

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The benefits of treatment

Learn the benefits of treating OHS with noninvasive ventilation.

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*Your respiratory system is made up of the organs in your body that help you to breathe.