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Korean J Crit Care Med > Volume 1(1); 1986 > Article
Korean Journal of Critical Care Medicine 1986;1(1): 9-16.
개흉술 마취시 기계적 환기법에 관한 임상적 고찰
김원옥, 김종래,박광원
연세대학교 의과대학 마취과학교실
A Clinical Study on the Mechanical Ventilation during Anesthesia for Thoracotomy
Won Oak Kim, Jong Rae Kim, Kang Won Park
Department of Anethesiology Yonsei University College of Medicine Seoul Korea
This experimental study was done to understand the functional difference and variables thought to be important in deterring 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 trachea, 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 and 1: 3. With air entrainment, HFJV provided more peak flow than system J and less FiO2 with an increasing driving pressure. Some functional characteristics of two high frequency ventilatory system using double-lumen tubes in a lung model are shown in this study.
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