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Apnoea-hypopnea index

Last revised by Yaïr Glick on 2 Aug 2023

Citation, DOI, disclosures and article data

Citation:

Weerakkody Y, Glick Y, Apnoea-hypopnea index. Reference article, Radiopaedia.org (Accessed on 01 Jul 2024) https://doi.org/10.53347/rID-172794

DOI:

https://doi.org/10.53347/rID-172794

Permalink:

https://radiopaedia.org/articles/172794

rID:

172794

Article created:

30 Jul 2023, Yuranga Weerakkody ◉

Disclosures:

At the time the article was created Yuranga Weerakkody had no financial relationships to ineligible companies to disclose.

View Yuranga Weerakkody's current disclosures

Last revised:

2 Aug 2023, Yaïr Glick ◉

Disclosures:

At the time the article was last revised Yaïr Glick had no financial relationships to ineligible companies to disclose.

View Yaïr Glick's current disclosures

Revisions:

2 times, by 2 contributors - see full revision history and disclosures

Systems:

Chest

Synonyms:

Apnea- hypopnea index (AHI)
Apnoea-hypopnoea index
Apnoea-hypopnoea index (AHI)

The apnoea-hypopnea index (AHI) is a clinical tool to assess severity of obstructive sleep apnoea. It is taken as the combined average number of apneoas and hypopnoeas occurring per hour of sleep.

According to the American Academy of Sleep Medicine (AASM) it is categorised into

mild (5-15 events/hour)
moderate (15-30 events/hour)
severe (>30 events/hour)

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