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Chest, Vol 84, 695-698, Copyright © 1983 by American College of Chest Physicians

ARTICLES

Sleep deprivation decreases ventilatory response to CO2 but not load compensation

PL Schiffman, MC Trontell, MF Mazar and NH Edelman

Because sleep is known to reduce ventilatory drive, and sleep deprivation is a common accompaniment to ventilatory failure, we tested ventilatory response to carbon dioxide (delta V1/delta PCO2) and response to an inspiratory flow resistive load (change in delta P100/delta PCO2 with load) after both a normal night of sleep and after 24 hours of sleep deprivation in 13 healthy volunteers. Sleep deprivation was associated with a significant decrease in delta V1/delta PCO2 from 2.51 +/- .36 to 2.09 +/- .34 L/min/mm Hg (p less than 0.02). However, load compensation was preserved during sleep deprivation. Since many acutely-ill patients are sleep deprived, an associated reduction of ventilatory drive may play a role in progressive respiratory insufficiency.


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