Re: Hypopnea scoring criterion...
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Re: Hypopnea scoring criterion...


Posted by RPSGT on January 30, 2003 at 01:27:15:

In Reply to: Hypopnea scoring criterion... posted by sleepyinvermont on January 30, 2003 at 00:54:04:

1. 10 seconds for adult, 2 or more breaths for infants and children (Sheldon's Atlas of Sleep Medicine in Infants and Children 1999)
2. 20% for thermistor. Never use pressure transducer by itself.
3. either/or is sufficient
4. 4% desat OR EEG arousal
5. A. No but correlates are mentioned in interp.
5. B. Depends. We score microarousals below the task force criteria and look for signs of subcortical, physiological arousal.
6. Yes. Because they arise from different mechanisms and treatment may not be the same. You need to understand the respiratory event before attempting to treat the abnormality that caused it in the first place. For instance, you don't keep jacking up CPAP pressure for "hypopneas" when on close inspection, they are central. I watched a tech do that awhile back. Went all the way to 14cm. Optimal pressure was 6cm. Tech wasted alot of time being confused by not looking at the event close enough.

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