Posthyperventilation apnea

Nasal mechanical ventilation for 3 minutes was used to induce hypocapnia, which causes a 6 mmHg decrease in PeCO₂ during stable NREM sleep. Central apnea occurs upon cessation of mechanical hyperventilation.

EEG: electroencephalography; EMG: electromyography; PeCO₂: exhaled carbon dioxide; NREM: non-rapid eye movement.

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