Biphasic Cuirass Ventilation
Biphasic Cuirass Ventilation
Biphasic Cuirass Ventilation
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<strong>Biphasic</strong> Extrathoracic Pressure CPR<br />
A Human Pilot Study<br />
Howard A. Smithline et al.<br />
Department of Emergency Medicine, Henry Ford Health Systems, Henry<br />
Ford Hospital, Detroit<br />
"<strong>Biphasic</strong> Extrathoracic Pressure CPR [using the Hayek Oscillator] significantly<br />
increases the coronary perfusion pressure when compared with standard CPR<br />
[a pneumatic compression device (the Thumper)]. Additionally, there is a trend<br />
for improved systemic perfusion as indicated by the improved venous to arterial<br />
Pco 2<br />
gradient, although this is not reflected by significant decreases in the<br />
OER. Oxygenation and ventilation appear to be adequately maintained, thus<br />
obviating the need for positive pressure ventilation with its associated risks."<br />
CHEST Vol. 105, p. 842-846, March 1994.
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