to compare effects of vibratory and mechanical ventilation on fluid balance in the newborn lung , we measured pulmonary arterial and left atrial pressures , pleural and airway pressures , lung blood flow and lymph flow , and concentrations of protein in lymph and plasma of 19 healthy lambs , 2-4 weeks old , during a 2- to 4-hour period of spontaneous breathing , followed by 4-8 hours of mechanical ventilation at 30 breaths/min and 4-8 hours of vibratory ventilation , in which the lambs received 1650 whiffs of air/min .
C0034052
pulmonary arterial
C0024109
lung