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Examples of a central and an obstructive event following tone-induced arousal from sleep
An example of a central apnoea (A) and an obstructive apnoea (B) in two different women with OSA following tone-induced arousals from sleep. Both women were flow limited (sub-optimal CPAP) but had stable breathing before arousal. Vertical lines indicate the start and end of EEG arousal which are difficult to discern on the compressed time scale.
