Test results
At home via Lofta: Obstructive Sleep Apnea (G47.33) - Mild, based on REM-predominant, pAHI= 6.4 (average = 3) and pRDI= 18.6, and O2 nadir of 93%.
In Lab: “AHI 3.0 RDI 6 with significant REM specificity, disrupted architecture” although didn’t feel like I slept at all given all the wires on me. Doc said I am fine given low numbers
Is Lofta purposefully increasing events so that folks buy machines from them to drive revenue? More confused than I was before. Do I have UARS? I have allergies so my nasal passages are probably always inflamed to an extent but I can breathe (maybe not as optimally as I would like)
RE: Test results
The accuracy of in-lab polysomnography is the gold standard. Your Lofta test did a good job of providing results consistent with the lab. Higher event rates may be more due to Lofta not having true EKG leads to detect sleep and stage, or even normal night to night variations.
RE: Test results
With those numbers would you think I have UARS? I’m not sure if I even slept in lab for that one
RE: Test results
(08-14-2023, 11:45 AM)Kmzizzle Wrote: With those numbers would you think I have UARS? I’m not sure if I even slept in lab for that one
I don't know the answer to your first question, but you for sure slept in the lab. If you hadn't there would be no data.
Sleepster
INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
RE: Test results
Hi all. I had an in lab study that showed a little different. See below for notes. Contrasting vs the Lofta study which showed a much higher RDI, how should I be weighing these?
Respiratory Events: Total of 28 respiratory disturbances were recorded of which 1 were apneas, 13 hypopneas and 14 RERAs. The apneas were exclusively obstructive in nature with 1 obstructive events, 0 central events and 0 mixed events. The Apnea/ Hypopnea index (AHI) is 3.0 events/ hour of sleep and the RDI is 6.0 events/ hour. The patient slept 277.6 minutes in supine posture and 99.30 minutes in non supine postures (R = 28.8 min, L = 69.9 min) with a Supine RDI of 7.7 events /hour and Non Supine RDI of 0.86 events /hour. Positional component of sleep apnea is confirmed. REM specificity is absent as the REM AHI is 3.8 and the NREM AHI is 2.3 events/ hour. REM RDI is 11.5 events/hour and NREM RDI is 4.4 events/ hour.
Other Sleep Parameters: Above noted respiratory disturbances were associated with oxygen desaturations down to a nadir of 95% with cumulative time <90% SpO2 being 0.0 minutes and mean SaO2 being 98%.
Mild to moderate intermittent snoring was heard. Total of 87 leg movements were recorded of which 15 qualified for PLMs with a leg movement index of 18.7 /hour and PLM Index of 3.2 /hour. The spontaneous arousal index was mildly normal at 5.2 and accounted for some fragmentation of sleep. Average Pulse Rate During Sleep is 57.6 bpm, while the Highest Pulse is 84 bpm. EKG showed Sinus rhythm. Pre and Post sleep questionnaire were reviewed.
IMPRESSION:
This PSG shows disrupted sleep architecture as noted above, and mild Obstructive sleep apnea (AHI= 3.0 events/ hour; RDI = 6.0 events/ hour) with no significant REM specificity and very significant positional sleep apnea. PLM index was normal. Spontaneous arousal index was minimally increased. Patienthas a normal weight (23.1), has a normal neck size and has mild subjective daytime sleepiness. Clinically relevant Oxygen desaturations are absent and EKG is unremarkable. Snoring is present.
RE: Test results
In-lab sleep studies are the gold standard. How long did you sleep for in the sleep study? Even with low hours of recorded sleep time, PSGs are typically very accurate.
Why did you go in for a sleep study?
Do you have a pulse oximeter at home? If not, it might be worthwhile to get one and start collecting data. Your mean oxygen is good, nadir pretty unconcerning, and both AHI/RDI are quite low. However, everyone responds differently to disturbances in sleep, and there's a chance that even at RDI 6, you could be experiencing significant disturbance in your sleep.
Something random of note from your sleep study is that you have many more events while sleeping on your back versus sleeping on your side, so deliberately sleeping on your side from here out may be a good first step in aiming for better sleep.
RE: Test results
(08-18-2023, 07:33 PM)jwest Wrote: In-lab sleep studies are the gold standard. How long did you sleep for in the sleep study? Even with low hours of recorded sleep time, PSGs are typically very accurate.
Why did you go in for a sleep study?
Do you have a pulse oximeter at home? If not, it might be worthwhile to get one and start collecting data. Your mean oxygen is good, nadir pretty unconcerning, and both AHI/RDI are quite low. However, everyone responds differently to disturbances in sleep, and there's a chance that even at RDI 6, you could be experiencing significant disturbance in your sleep.
Something random of note from your sleep study is that you have many more events while sleeping on your back versus sleeping on your side, so deliberately sleeping on your side from here out may be a good first step in aiming for better sleep.
Per below, it said I slept a lot but I recall I tried to sleep but if I had to guess, maybe got an hour max. Too many damn wires and office had a medical office smell to it. Lol
So what does tracking oxygen do if my oxygen generally seems fine in both tests ?
Architecture: The study started at 10:35:08 PM and ended at 4:54:02 AM. Total Recording Time was 378.9 minutes with a Total Sleep Time of 279.4 minutes and the patient showed decreased sleep efficiency of 73.7%. Sleep latency was decreased at 2.0 minutes. 3 REM cycles were recorded with increased REM latency of 207.5 minutes. In this study, 21.3% of sleep time was spent in N1, 43.8% in N2, 18.1% in deep sleep or N3 and 16.8% of sleep time in REM. The sleep architecture was notable for increased light sleep stages with normal deep and normal REM sleep; normal overall sleep and increased REM latency and decreased efficiency. Pathological sleepiness is suggested.
RE: Test results
Ok, well what I'm seeing is a difference in opinion. The sleep tech, and whoever scored your study, says you slept for 279.4 minutes, so it's hard for me to conclude whether the study holds weight or not, because this then becomes a matter of challenging the sleep tech's analysis of your EEG patterns.
I personally find it to be a helpful stream of data for figuring out how bad your sleep disturbance is. Oxygen desaturations, coupled with movement and heartrate, are quite telling, and sort of act as a little at-home sleep test of sorts every night. Ultimately, the EEG signals hold the most importance, I believe however.
I'm still interested in learning WHY you went in for the study to begin with, if you're willing to share.
Everyone responds differently to fluctuations of O2, and for those who are sensitive, even small desats can be a problem. I learned, more so in my younger years, that O2 sats of even 2% would wake me up. I don't know your age. I dont know how sensitive you may or may not be, but, hypothetically, if you had a pulse oximter that measured O2 levels and movement, you would be able to see if your O2 desats and movements coincided, which would give some colour.
RE: Test results
(08-19-2023, 09:06 PM)jwest Wrote: Ok, well what I'm seeing is a difference in opinion. The sleep tech, and whoever scored your study, says you slept for 279.4 minutes, so it's hard for me to conclude whether the study holds weight or not, because this then becomes a matter of challenging the sleep tech's analysis of your EEG patterns.
I personally find it to be a helpful stream of data for figuring out how bad your sleep disturbance is. Oxygen desaturations, coupled with movement and heartrate, are quite telling, and sort of act as a little at-home sleep test of sorts every night. Ultimately, the EEG signals hold the most importance, I believe however.
I'm still interested in learning WHY you went in for the study to begin with, if you're willing to share.
Everyone responds differently to fluctuations of O2, and for those who are sensitive, even small desats can be a problem. I learned, more so in my younger years, that O2 sats of even 2% would wake me up. I don't know your age. I dont know how sensitive you may or may not be, but, hypothetically, if you had a pulse oximter that measured O2 levels and movement, you would be able to see if your O2 desats and movements coincided, which would give some colour.
Yeah I must have slept some because I did register events which would not occur if awake. I went in because I feel more tired than I should in my early 30s. I wake up feeling like a train hit me and I sense my cognitive abilities are on a notable decline. So you’re saying to test my O2 levels And if they’re below a certain level then I should potentially invest in a Cpap?
RE: Test results
I would give CPAP a trial just based off of your findings. If you have the sleep report, and you feel like sharing it here, we could look through it together.
Pulse oximeters are helpful for calibrating/optimizing sleep once therapy has begun. I think trying a CPAP first could be more helpful.
|
