November 25, 2007
Subject – Result analysis: Nexense “SleepAP” VS PSG (Embla A-10).
Attached please find summary reports of a sleep study conducted 20-May-07.
Subject description:
Female,
Age – 45,
Height -162cm,
Wight – 96kg,
BMI = 36.64.
The study was conducted in the patient’s home using A – 10 Embla PSG & “SleepAP” by Nexense
Simultaneously, the subject was reefed to the study due to – excessive daytime somnolence & snoring.
The PSG results show an RDI = 21 respiratory events per hour.
EEG shows no indication of abnormal motor activity.
Sleep Stages – ~ normal- with REM time slightly shorter then normal for her age.
The SleepAP system detected – a total of 24.3 respiratory events per hour for the same duration.
I find The difference in results low & is probably due to definitions of event analysis that is not standard – in terms of sensitivity I find this system interesting & shows promise – need to conduct several studies more in order to validate the findings.
Conclusion: The SleepAP system shows promise & when validated could be used as a great screening tool for OSA.
Respectfully,
Dr, Avi Blonder
Maarag Ltd.
Israel.
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