... detrimental hemodynamic effects, mainly dependent on respiratory mechanics and the capacity of cardiovascular compensation [3,4] Inspiratory lung inflation can alter the autonomic tone, pulmonary vascular ... tube After 30 seconds of apnea the fluid was retrieved by gravity drainage followed by endotracheal suctioning After lung lavage, lung injury was progressed by ventilating the animals with a constant-volume ... HFOV and PCV Transpulmonary pressure, pulmonary gas exchange, and pulmonary shunt All ventilatory parameters, PaO2 and PaCO2, and calculated pulmonary shunt fraction data are presented in Table...