Oscar Data. No events flagged but weird flow rate pattern during REM - Printable Version +- Apnea Board Forum - CPAP | Sleep Apnea (https://www.apneaboard.com/forums) +-- Forum: Public Area (https://www.apneaboard.com/forums/Forum-Public-Area) +--- Forum: Main Apnea Board Forum (https://www.apneaboard.com/forums/Forum-Main-Apnea-Board-Forum) +--- Thread: Oscar Data. No events flagged but weird flow rate pattern during REM (/Thread-Oscar-Data-No-events-flagged-but-weird-flow-rate-pattern-during-REM) |
RE: Oscar Data. No events flagged but weird flow rate pattern during REM - Dormeo - 07-15-2024 Ynot, when you use high pressure support, you get more central apneas. When your PS is lower, you have hardly any. When you PS is higher, you get slightly fewer flow limitations; when it's higher, you get slightly more. You are worried about your breathing during REM. I'm not sure how you know when you're in REM sleep or what exactly it is that you think the problem is. Do you fear your REM breathing is kicking you out of REM sleep prematurely? Or is it something else? I will say that REM breathing is naturally more irregular than non-REM sleep breathing. I worry that you have unrealistic goals. You will never consistently have no CAs and no FLs. Having some of each is completely normal. You'll also always see some natural variation in both from one night to the next. You don't seem to me to be a good candidate for ASV. You seem to do well with PS of 4 or 5; why not stick with that for a while? If your sleep isn't restful, I'd urge you to make time for a good 7.5 hours of actual sleep per night, and I'd urge you to go to bed at the same time each night and get up at the same time each morning. It's not so easy to change these habits, but I think it'd be beneficial to you and well worth the effort. RE: Oscar Data. No events flagged but weird flow rate pattern during REM - Ynot - 07-15-2024 (07-15-2024, 12:12 PM)Dormeo Wrote: Ynot, when you use high pressure support, you get more central apneas. When your PS is lower, you have hardly any. When you PS is higher, you get slightly fewer flow limitations; when it's higher, you get slightly more. Thank you for the advise and attention. RE: Oscar Data. No events flagged but weird flow rate pattern during REM - SarcasticDave94 - 07-15-2024 The last chart I saw prior to this was a zoomed in one, with about 7 hours sleep duration, 11 CA flags over that time, 0.0 FL. You don't like variable pressure now, you'll hate ASV. That's what it does to do its job. The only ASV machine mode that doesn't vary is static CPAP. Yes, I've used ASV for 2 years in the past, and I was fine with variable EPAP, PS, and IPAP. Besides that, I see no real big CA trouble to indicate even thinking about ASV. I do honestly believe your higher PS to be the culprit to any CA flags, but it's your therapy. Meaning I can suggest something, but it's on you whether you'll accept and apply. RE: Oscar Data. No events flagged but weird flow rate pattern during REM - Dormeo - 07-15-2024 A couple of things. There is no one way that REM respiration looks like. In your sleep study, you had only three hours of sleep, probably just one REM period. I wouldn't generalize too much from data that are so limited. You do sometimes have some waxing and waning breath, but it isn't at all like Cheyes-Stokes breathing. So please don't worry about CS breathing. By itself, waxing and waning isn't a problem either. I'm glad you plan to stick with your machine, and I hope you'll stick with your settings. If you get concerned about CAs, bring you PS down a little. Again, I hope you'll concentrate much more on aspects of sleep other than your settings so that you can feel rested and fresh during the day. RE: Oscar Data. No events flagged but weird flow rate pattern during REM - Ynot - 07-15-2024 It's not that I do not like variable pressure, it is just that I do not think or see in my data that variable epap helps me. I do see, however, how variable ps could help me. I assume you could customize the settings to include a fixed epap with asv. When I use high ps, it does lead to TESCA, but lower ps aggravates flow limitations so it is hard to choose between them. I'm not sure which graph you saw, but now, with mouth tape, collar, high sensitivity, and 5.4-6ps, I do not get legit CAs. I do however get waxing and waning central hypoapnea-like events, similar to cheyne strokes respiration, occasionally during rem sleep. I'm trying to find the optimal balance. Thanks RE: Oscar Data. No events flagged but weird flow rate pattern during REM - Ynot - 07-15-2024 (07-15-2024, 03:45 PM)Dormeo Wrote: A couple of things. There is no one way that REM respiration looks like. In your sleep study, you had only three hours of sleep, probably just one REM period. I wouldn't generalize too much from data that are so limited. The data in the sleep study fits perfectly with my symptoms, and it is clear in my cpap data, that my breathing was terrible during rem sleep (attachment). I know I do not have CS, it is just a comparison to express the pattern without attachment. I'll try to optimize my settings. If you or someone could offer a healthy model of a good night with good breathing, so I can have an idea of how volatile rem is normally, it would be appreciated. Thanks RE: Oscar Data. No events flagged but weird flow rate pattern during REM - Ynot - 07-16-2024 Hello Increasing trigger sensitivity helped with TECSA. Are there any other settings changes like Ti max, min, cycle etc that might help so that I can tolerate higher ps, or that's about it with vauto. Thanks RE: Oscar Data. No events flagged but weird flow rate pattern during REM - Dormeo - 07-17-2024 It's a good question, but I don't know the answer. I hope someone else can help with it. RE: Oscar Data. No events flagged but weird flow rate pattern during REM - donsburg - 08-02-2024 I've read this whole thread with interest. I may have missed this but I don't think I saw much discussion of whether a "ragged" or "jagged" flow pattern is normal?? I'm not allowed to post images yet, but post #19 on page 2 has some example images. Particularly the second image. Any thoughts or information about whether the "shaky" line between expiration and inspiration is normal / ok? RE: Oscar Data. No events flagged but weird flow rate pattern during REM - Dormeo - 08-02-2024 Those oscillations around the zero line are called cardioballistic artifacts. The heart telegraphs its beat to the airway. A fair number of people have this, and it's nothing to worry about. |