Neurology
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Neurology, Vol 45, Issue 5 966-969, Copyright © 1995 by American Academy of Neurology

ARTICLES

Apnea testing by artificial CO2 augmentation

CJ Lang
Neurological Hospital, University of Erlangen-Nuremberg, Germany.

We used artificial augmentation of CO2 at a rate of 1 l/min after preoxygenation with 100% O2 to test for apnea in 34 patients with suspected brain death. Observation time was markedly reduced compared with conventional apneic oxygenation, allowing PaCO2 levels > or = 60 mm Hg to be reached within 2 minutes. Properly administered, CO2- supported apnea testing is quick, requires only simple technical equipment, and does not unduly lower PaO2 or pH. It seems to be a useful alternative in cases where reduction of ventilatory volume is not wanted.


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J. L. Goudreau, E. F. M. Wijdicks, and S. F. Emery
Complications during apnea testing in the determination of brain death: Predisposing factors
Neurology, October 10, 2000; 55(7): 1045 - 1048.
[Abstract] [Full Text] [PDF]


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