POLL: What was your AHI at your diagnostic sleep study?

General Discussion on any topic relating to CPAP and/or Sleep Apnea.

What was your AHI at your diagnostic sleep study?

5-10
25
6%
11-20
51
12%
21-30
52
12%
31-50
88
21%
51-70
81
19%
71-90
44
10%
91-110
38
9%
111-130
28
7%
131+
12
3%
Never had a PSG
3
1%
 
Total votes: 422

terms and numbers

Re: POLL: What was your AHI at your diagnostic sleep study?

Post by terms and numbers » Sat Mar 05, 2011 3:01 am

I'm new to this as well, but my pressure was set ast 20/15 .......I don't know a lot of the terminology associated with the cpap, so I have quite a bit to learn. A glossary of apnea treatment terms would be helpful......wouldn't really change anything, other than understanding the condition that has been kicking my but for years now.

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Drowsy Dancer
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Re: POLL: What was your AHI at your diagnostic sleep study?

Post by Drowsy Dancer » Sun Mar 06, 2011 8:52 am

terms and numbers wrote:I'm new to this as well, but my pressure was set ast 20/15 .......I don't know a lot of the terminology associated with the cpap, so I have quite a bit to learn. A glossary of apnea treatment terms would be helpful......wouldn't really change anything, other than understanding the condition that has been kicking my but for years now.
Hey, terms and numbers, check out the sticky at the top of the forum. Early posts have a lot of definitions. viewtopic/t35702/Where-A-CPAP-Newbie-Should-Start.html

Also check in the Wiki here: wiki/index.php/Category:CPAP_Definitions

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Re: POLL: What was your AHI at your diagnostic sleep study?

Post by DreamLady » Sun Mar 06, 2011 11:16 am

Never got to REM during Sleep study (barely ever got to stage 3, either). They said 63 was what they counted, but thought the 'real' number was probably twice that. The expected my AHI would be much, much worse in REM. I was lucky that my insurance agreed to treat with the data they had because of the severity. Tech with 25 years experience said I was the most apnic patient she'd ever tested.

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Re: POLL: What was your AHI at your diagnostic sleep study?

Post by Twentysix » Sun Mar 06, 2011 11:37 pm

jnk wrote:Based on a great question in a recent thread by Necro(viewtopic/t44203/Intro-and-Who-here-has-AHI-100.html), I thought it might be interesting to find out what the original-study AHIs were for present board users who had a diagnostic study.

Edit: Remember, just as Georgio points out later in this thread, that AHI is the number of events per hour, not the total number of events for the night.
As I understand my number was different for 'normal' sleep and 'REM' sleep, so which number do you want?

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Re: POLL: What was your AHI at your diagnostic sleep study?

Post by jnk » Mon Mar 07, 2011 7:20 pm

Twentysix wrote:
jnk wrote:Based on a great question in a recent thread by Necro(viewtopic/t44203/Intro-and-Who-here-has-AHI-100.html), I thought it might be interesting to find out what the original-study AHIs were for present board users who had a diagnostic study.

Edit: Remember, just as Georgio points out later in this thread, that AHI is the number of events per hour, not the total number of events for the night.
As I understand my number was different for 'normal' sleep and 'REM' sleep, so which number do you want?
AHI for the night, total sleep time.

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Re: POLL: What was your AHI at your diagnostic sleep study?

Post by SleepingUgly » Fri Mar 11, 2011 9:47 pm

I don't think the mean is a good measure of central tendency in the presence of outliers... In other words, 4 in NREM (notwithstanding continuous FLs) and 58 in REM ==> overall RDI of 15.7, which neither represents my NREM or my REM very well!
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Re: POLL: What was your AHI at your diagnostic sleep study?

Post by Mr Bill » Thu Mar 17, 2011 9:35 am

During the first study, there was an observation period of 4.5 hours during which I got 75 minutes of no REM sleep (24% sleep efficiency). I was having a respiratory disturbance index of 76 events per hour and apnea/hyponea index of 67.7 events per hour. 59 of the 84 events during actual sleep were central events and persisted between 7cm (51 CA/hr) and 10cm (68 CA/hr) of CPAP. Lowest oxygen saturation during that first study was 81%.

My AHI is 3-4 now.

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Re: POLL: What was your AHI at your diagnostic sleep study?

Post by dilbert » Thu Mar 17, 2011 9:41 am

My first study I was told moderate with 27 AHIs when on my side or stomach. They also said my back sleeping was severe but did not tell me the number. Funny thing is I don't recall sleeping on my back as I tried but couldn't settle that way.

I am going back on Saturday night to get my flow rate determined etc. I will ask what was the number for supine sleep.

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Re: POLL: What was your AHI at your diagnostic sleep study?

Post by chunkyfrog » Fri Jun 17, 2011 1:27 pm

13.
--and yet I feel 1000% better.

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Re: POLL: What was your AHI at your diagnostic sleep study?

Post by tbone421998 » Fri Jun 17, 2011 1:40 pm

Sleep Time in Minutes: 148.5
AHI 88.9/hr
RDI 91.7/hr
Obstructive apneas 55 total
Central apneas 12 total
mixed apneas 2 total
hypopneas 151
RERA 7
Snoring aproximately 900 events
Unexplained transient arousals 18
Pressure: 15
Low Oxygen: 70
Mean Oxygen: 93

Tonight will be night 18. I am averaging just over 5 hours a night and just over 5 AHI a night with compiance being 13 out of 17. Feeling much better during the day.
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Re: POLL: What was your AHI at your diagnostic sleep study?

Post by BrianinTN » Fri Jun 17, 2011 1:50 pm

35ish, but the ratio was something like 4-to-1 hypopneas to apneas.

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Re: POLL: What was your AHI at your diagnostic sleep study?

Post by deerslayer » Fri Jun 17, 2011 2:34 pm

Sleep Study done at VA facility -Alvin C.York Campus. WAS NEVER TOLD just told to come in a few weeks later & given a machine & pick a mask.
if not for finding this forum a couple weeks after starting therapy , i would not have a clue

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Re: POLL: What was your AHI at your diagnostic sleep study?

Post by Mary Z » Fri Jun 17, 2011 3:03 pm

My AHI was only five. If I hadn't been having such severe daytime sleepiness I would not have gone on CPAP. In fact the doctor gave "wait and see" as an option. My AHI per my home machine has never been as low as during that and one subsequent sleep study.

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