An Experimental Comparative Study of HFJV and System J in a Lung Model.
10.4097/kjae.1984.17.4.321
- Author:
Won Oak KIM
1
;
Jong Rae KIM
;
Kwang Won PARK
Author Information
1. Department of Anesthesiology, Yonsei University College of Medicine, Seoul, Korea.
- Publication Type:Comparative Study ; Original Article
- MeSH:
High-Frequency Ventilation;
Lung*;
Oxygen;
Plastics;
Tidal Volume;
Ventilation;
Ventilators, Mechanical
- From:Korean Journal of Anesthesiology
1984;17(4):321-328
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
This experimental study was done to understand the functional difference and variables thought to be important in determing CO2 elimination and arterial oxygenation during HFJV and system J (System J means that an expiratory valve is attached to the expiratory port of the double lumen tube). In an experimental lung model, a plastic tube, simulating the traches, was intubated with a double-lumen tracheal tube. Ventilation was performed with a solenoid valve controlled high frequency ventilator. Changing the inspiratory time and driving pressure during HFJV and system J can linearly alter the tidal volume and airway pressure. There was a significant difference in airway pressure between the two modes of high frequency ventilation at I:E ratios of 1:2 adn 1:3. With air entrainment, HFJV provided more peak flow than system J and less FIO2 with and increasing driving pressures. Some functional charateristics of two high frequency ventilatory system using double-lumes tubes in a lung model are shown in this study.
