nocturnal oxygen does not treat root cause of OSA

• related: Sleep and Sleep Disordered Breathing
• tags: #permanent

• nocturnal oxygen is often prescribed for nocturnal hypoxemia
• oxygen does not improve obstructive events
• patients can still have downstream effects of OSA: sympathetic activation (am HTN), microarousals, sleep fragmentation, large changes in intrathoracic pressure
• recent data have shown 5L O2 compared to 2-3L may have improvement in am BP elevation
• nocturnal oxygen can be used as an adjunct after fixing underlying obstruction with CPAP¹

Links to this note

• Sleep and Sleep Disordered Breathing
  • nocturnal oxygen does not treat root cause of OSA