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export of Cheyne Stokes parameter
#11
RE: export of Cheyne Stokes parameter
CSR breathing


Quote:Evaluation  https://www.ncbi.nlm.nih.gov/books/NBK448165/

Cheyne-Stokes respiration is characterized by alternating apnea and hyperventilation during sleep, mostly in the N1 and N2 sleep, and also when awake. This can be clinically observed and documented with a cyclic variation of breathing pattern with a change in saturation from 90% to 100%. Minute ventilation is not routinely monitored during sleep studies. The hyperventilation is documented by rising and falling chest excursions and the tidal volume. If the patient is on a ventilator, then the cyclical change in tidal volume and minute ventilation can be graphed together. The apnea/hyperapnea cycle is around 45 minutes to 75 minutes. This cycle is longer than other causes of central sleep apnea cycle, which typically have a cycle length of 30 to 45 minutes. Cheyne-Stokes respiration is worse in the supine position or moving from supine to lateral body position.


Quote:Etiology https://www.ncbi.nlm.nih.gov/books/NBK448165/
Cheyne-Stokes respiration is a specific form of periodic breathing (waxing and waning amplitude of flow or tidal volume) characterized by a crescendo-decrescendo pattern of respiration between central apneas or central hypopneas. The American Academy of Sleep Medicine (AASM) recommends to score a respiratory event as Cheyne-Stokes breathing if both of the following criteria are met:

  1. There are episodes of at least three consecutive central apneas and/or central hypopneas separated by a crescendo and decrescendo change in breathing amplitude with a cycle length of at least 40 seconds (typically 45 to 90 seconds).

  2. There are five or more central apneas and/or central hypopneas per hour associated with the crescendo/decrescendo breathing pattern recorded over a minimum of two hours of monitoring.

This should help
so, waxing and waning pattern with a central event between then and duration per the above.
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#12
RE: export of Cheyne Stokes parameter
Gideon, thank you for clarification and the URL.
Andreas
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#13
RE: export of Cheyne Stokes parameter
I truly appreciate the explanation given here.
Back to my own report; I'm going to post some screenshots.

Andreas I appreciate you asking this question. It helped me a lot.
DaveL
Compliant for over 30 years

I'm just a cpap user like you. I don't give medical advice. I hope to learn from you, and share my experiences with you. 
Seek the advice of a physician before seeking treatment for medical conditions including sleep apnea. Sleep-well

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