Apnea Hypopnea Index (AHI)

What do we mean by mild/moderate/severe apnea?

Sleep tests allow respiratory therapists and respirologists to detect apneas and hypopneas. The apnea/hypopnea index (AHI) is defined as the number of apneas and hypopneas measured per hour of sleep.

The AHI is used to determine the severity of one’s sleep apnea.

Mild: AHI ≥ 5, but < 15 per hour

Moderate: AHI ≥ 15, but < 30 per hour

Severe: AHI ≥ 30 per hour

* Reference to the AASM guidelines

Why measure my Apnea/hypopnea index (AHI)?

Treatment options vary according to sleep apnea severity. Knowing your AHI will allow our healthcare specialists to determine the best therapy for your condition.

Mild apnea is often treated with lifestyle modifications. When symptoms indicative of decreased quality of life or systemic health issues are also present, additional therapies such as CPAP can be offered.

Moderate and severe apnea can be treated by the following: CPAP machine or another mode.

Mandibular Advancement Device (MAO / MAD)

Radiofrequency therapy

Upper airways Surgeries

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