Biphasic Cuirass Ventilation
Biphasic Cuirass Ventilation
Biphasic Cuirass Ventilation
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The Effects of Positive and Negative Extrathoracic Pressure <strong>Ventilation</strong><br />
on Pulmonary Blood Flow<br />
after the Total Cavopulmonary Shunt Procedure<br />
D.J. Penny, Z. Hayek and A.N. Redington<br />
Department of Paediatric Cardiology, Royal Brompton and National Heart<br />
Hospital, London<br />
"Pulmonary blood flow patterns were studied during the application of varying<br />
extrathoracic pressure in 2 patients after total cavopulmonary anastomosis. The<br />
application of negative extrathoracic pressure [by use of the Hayek<br />
Oscillator] was associated with large increases in pulmonary<br />
blood flow, while positive extrathoracic pressure caused<br />
retrograde flow away from the lungs. These preliminary<br />
observations suggest that negative extrathoracic pressure<br />
may be useful as a means of respiratory support in patients<br />
after right heart bypass procedures."<br />
International Journal of Cardiology, 30 (1991) 128-130
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