Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Videos

Aspiration in transtracheal jet ventilation

B Jawan¹, J H Lee

¹Chang Gung Memorial Hospital, Kaohsiung Medical Center, Niao Sung Hsiang, Kaohsiung Hsien, Taiwan, ROC.

Acta Anaesthesiologica Scandinavica

|July 1, 1996

Summary

Transtracheal jet ventilation (TJV) at frequencies above 80 breaths/min prevents aspiration. Discontinuation requires clearing the airway above the jetting port to prevent pulmonary aspiration due to pressure changes.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Correlation Between Blood Transfusion and Blood Glucose Levels in Adult Living Donor Liver Transplantation.

Transplantation proceedings·2018

Same author

Comparison of Core Temperature Changes Between Pediatric Patients Lying on Regular Operating Room Linen Drapes and Water-Repellent Sheepskin Rug in Living Donor Liver Transplantation.

Transplantation proceedings·2018

Same author

Eye Protection in Liver Transplantation Patients Under General Anesthesia.

Transplantation proceedings·2018

Same author

Anesthesia Management and Fluid Therapy in Right and Left Lobe Living Donor Hepatectomy.

Transplantation proceedings·2018

Same author

The Correlation Between CVP and SVV and Intraoperative Minimal Blood Loss in Living Donor Hepatectomy.

Transplantation proceedings·2018

Same author

Predictive Risk Factors in the Development of Intraoperative Hyperkalemia in Adult Living Donor Liver Transplantation.

Transplantation proceedings·2016

Area of Science:

Anesthesiology
Respiratory Physiology

Background:

Transtracheal jet ventilation (TJV) is used for difficult airways.
Controversies exist regarding TJV and pulmonary aspiration risk.
Previous studies suggest aspiration prevention at >60 breaths/min or even lower with specific techniques.

Purpose of the Study:

To reevaluate the controversy surrounding pulmonary aspiration during TJV.
To observe both the trachea and lungs simultaneously during TJV.

Main Methods:

Eight anesthetized and paralyzed dogs were ventilated using TJV at varying frequencies (10-600/min).
Airway pressures were measured.
Barium was introduced into the mouth, and chest X-rays were taken to detect aspiration.

Main Results:

No tracheal or pulmonary aspiration was observed on X-rays when TJV frequencies were above 80 breaths/min.
At 60 breaths/min, barium was present in the trachea but above the jetting port.
Lowering frequency to 10 breaths/min did not alter barium levels.

Conclusions:

No aspiration was visualized on chest X-rays.
Forceful gas outflow through the larynx likely prevents aspiration.
Limited tracheal aspiration may be due to negative upper airway pressure.
Clearing the airway above the jetting port before discontinuing TJV is recommended to prevent aspiration.

Related Experiment Videos