Obstructive vs central vs complex sleep apnea — and why the distinction matters
A patient with a OSA vs CSA, PSG showing AHI 28 is told “you have sleep apnea” and is prescribed CPAP. The prescription may be correct. It may also be wrong — fatal-level wrong in rare cases — if the events were predominantly central, or if they convert to central on CPAP initiation. The difference between

