Simple evaluation of SDB:
- Normal sleep is ≥50% HFC
- Unstable sleep is <50% HFC and an LFC/HFC ratio of >25%
- OSA has >15% LFC
- Complex Sleep Apnea has >2% LFC narrow band values
RemLogic™ CPC Module
A Picture Of Obstructive Sleep Apnea
Full View:
Loss of HFC (Stable Sleep)
90° View
LFC (Unstable Sleep) is increased; OSA is associated with elevated LFC values >15% and an LFC/HFC ratio of >25%
The 90° view of the CPC spectrogram shows the distribution of peaks in the LFC frequency range of 0.0 to 140 mHz along the X-axis. Time is displayed along the Y-axis with the start of recording near zero.