Zhonghua jie he he hu xi za zhi = Zhonghua jiehe he huxi zazhi = Chinese journal of tuberculosis and respiratory diseases
-
Zhonghua Jie He He Hu Xi Za Zhi · Nov 2011
[The effects of a domestically made jet ventilator in dogs during interventional procedures by rigid bronchoscopy under general anesthesia].
To observe the effects of a domestically made jet ventilator in dogs during interventional procedures by rigid bronchoscopy under general anesthesia. ⋯ This domestically made jet ventilator could not provide enough effective ventilation during interventional procedures with rigid bronchoscopy under general anesthesia because hypoxemia and hypercapnia occurred when the operation time was prolonged. The PaO(2) and PaCO(2) of the dogs were better when spontaneous breathing was maintained during the procedure. The ventilation effects of the jet ventilator was closely related with its driving pressure. The oxygen concentration at the distal end of the rigid bronchoscope was lower than 40% in most situation when it was in the midrange (3 - 6 centimeters in the adapter) under high pressure oxygen (FiO(2) 100%). There was no significant change in the oxygen concentration with adjustment of the driving pressure or the I:E ratio of the jet ventilator.