Annals of emergency medicine
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Comparative Study
Ventilatory strategies affect gas exchange in a pig model of closed-chest cardiac compression.
To identify the arterial and mixed venous blood gas changes caused by different ventilatory strategies during resuscitation from ventricular fibrillation in a pig model of closed-chest cardiac compression. ⋯ This study indicates that passive air movement during chest compression does not allow physiologically significant pulmonary gas exchange and that room air ventilation alone is not sufficient to maintain mixed venous PO2.