International Classification of Sleep Disorders

Well, it's been suggested by some experts that we need to define another new sleep disorder.

We've got a lot in ICSD already called trauma-associated sleep disorder, and their criteria are altered dream mentation, dream enactment behavior with REM sleep without atonia, and what they call autonomic hyperarousal during sleep.

I'm not sure how that's defined or diagnosed.

Do you think we should put together this and say this is a well-described new sleep disorder?

There may be other things.

You know, the ICSD has, like, a hundred-plus diagnoses, and it's not always obstructive sleep apnea.

So it's just something to keep in mind when we're looking at some of the non-traditional risk factors, but also non-traditional symptoms in patients where you think it's obstructive sleep apnea.

So really know the symptoms, right? And I don't know if you look for any others, but snoring is a big one.

Why don't we also talk about the classification? When was the last time central sleep apnea's classification was updated, and what should we know about the classification?

The most recent classification for central sleep apnea is written in the International Classification of Sleep Disorders, third edition.

In this edition, it's classified into six central sleep apnea syndromes.

So these are the CSA with Cheyne-Stoke breathing, CSA due to high altitude periodic breathing, primary CSA, CSA due to medication or substance, CSA due to medical disorder without Cheyne-Stoke breathing, and treatment emergent central sleep apnea.

All right.

Well, shifting along here, one thing that we opened the door for from our previous conversation, and we talked about in the context of measurement, is this cluster, this cl- this umbrella of category-- this umbrella of disorders known as central disorders of hypersomnolence in the International Classification of Sleep Disorders in its third edition text revision currently.

And these disorders are defined by a primary complaint of excessive daytime sleepiness.

That's kinda why they're housed together, if you will, and they're thought to arise from kinda central nervous system dysfunction or dysregulation, hence the central disorders of hypersomnolence.