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[Diagnosis] What does all this mean?
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robysue Online
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Post: #11
RE: What does all this mean?
(02-12-2014 11:53 AM)PaytonA Wrote:  
(02-12-2014 09:40 AM)robysue Wrote:  REM AHI = 36. As in---if you were to get a full hour of REM sleep, the data indicate you would stop breathing or almost stop breathing about 36 times in that hour of REM sleep. That puts your REM OSA into the severe range. So you probably are not getting enough REM sleep in a typical night's sleep.


I have a question due to my lack of knowledge. I was under the impression that breathing interruptions might keep one from attaining REM sleep. Is this not the case?

Best Regards,

Yep, for some people with untreated OSA, they never really get to REM because the breathing interruptions are so frequent that every time they enter REM, they have an event and the arousal bounces them right back out of REM.

On diagnostic sleep studies, it's not uncommon for people with severe OSA to have very little or no REM recorded during the 6 hour study. One consequence of that is that the REM AHI can calculated on very little sleep time, which can lead to some seriously high REM AHI numbers.

But many people with moderate untreated OSA do get into REM, but the time in REM may be low, but not close to non existent.
02-12-2014 12:19 PM
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Post: #12
RE: What does all this mean?
(02-12-2014 12:22 AM)lanitaawd Wrote:  Yes, this was the information he wrote on a note for me to have of the information.
As mentioned you need to ask for a copy for the full report
To give you an idea what sort of information the sleep study report entails, here is mine

Scorer's report :the patient reported that the quality of his sleep was worse than usual . Sleep efficiency was poor (52.7%) with frequent awakenings and several prolonged wake across the night. Sleep latency (33mins) was prolonged and the proportions of both slow wave sleep (3.9%) and REM sleep (9.3%) were reduced. Continuous soft to moderate intensity snoring was reported by the overnight technologist.
Runs of repetitive hypopnoes and obstructive apneas occured during both NREM and REM sleep in all position , and caused frequent arousals (arousal index 84.8) and moderate oxygen desaturations (min SaO2 85%) . small numbers of RERAs were noted . The overall RDI was 85.0. There were no periodic leg movements. The ECG showed normal sinus rhythm (mean HR 68 bpm ).
Severe OSA

Sleep Staging Data :
Light out : 10.22.58 pm Sleep Onset : 10.55.58 pm
Light on : 6.01.58 am Sleep Efficiency : 52.7%
Time in Bed (TIB) 459.0 min Sleep Latency: 33.0 min
Total Sleep Time : 242.0 min REM Latency 241.5 min

sleep Staging %Total Sleep Time Normal Values Total Sleep Time (min)
Stage 1 6.2 (5%) Stage 1 18.0
Stage 2 80.6 (50%) Stage 2 195.0
Stage 3 3.9 (10%) Stage 3 9.5
Stage 4 0.0 (10%) Stage 4 0.0
Stage REM 9.3 (25%) Stage REM 22.5
Wake During Sleep 182.5 min Total Wake Time 214.0 min %Wake 46.6%

Respiratory Data :

Central Obstructive Mixed Hypopneas
#of Event 2 108 3 218
Mean Duration (sec) 12.0 18.2 17.3 24.3
Max Duration(sec) 14.0 37.5 19.0 71.0
Total Duration (min) 0.4 32.8 0.9 86.8
REM Non-REM Total Sleep Time
AHI/hour 37.3 85.6 81.1
Total RDI/hour (incl RERAs) 42.7 89.4 85.0

Oximetry Data:
Average SaO2 during wake 92% Average SaO2 in Non-REM 93%
Average SaO2 in REM 92% Minimum SaO2 value 85%

Positional Respiratory Data Time in position (mins) AHI/hr
Supine 61.8 100.0

Arousal Data:
Total number of u-arousal 342 Total number of arousal >15 sec 10
Apneas (with desats ) 196 Number of Awaking/Movements 57
Apneas (without desats) 100 Leg movement with arousal 0
Respiratory Effort Related Arousal 17
Spontaneous 31 Arousal index 84.8/hour

Periodic Limb Movement Data :
Leg movement with arousal 0 Leg movement with arousal index 0/hour
Leg movement without arousal 0 Leg movement without arousal index 0/hour
02-12-2014 03:24 PM
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