Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Small tubes revisited

K F Koh1, J D Hare, I Calder

  • 1Department of Neuroanaesthesia, National Hospital for Neurology and Neurosurgery, London, UK.

Anaesthesia
|March 20, 1998
PubMed
Summary
This summary is machine-generated.

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

Plasmoid Formation and Strong Radiative Cooling in a Driven Magnetic Reconnection Experiment.

Physical review letters·2024
Same author

Experimental Evidence of Plasmoids in High-β Magnetic Reconnection.

Physical review letters·2024
Same author

Characterization of Quasi-Keplerian, Differentially Rotating, Free-Boundary Laboratory Plasmas.

Physical review letters·2023
Same author

Perpendicular Subcritical Shock Structure in a Collisional Plasma Experiment.

Physical review letters·2022
Same author

Time-resolved velocity and ion sound speed measurements from simultaneous bow shock imaging and inductive probe measurements.

The Review of scientific instruments·2022
Same author

Collective optical Thomson scattering in pulsed-power driven high energy density physics experiments (invited).

The Review of scientific instruments·2021
Same journal

Pulmonary artery catheters or central venous catheters for cardiac surgery: the PUMA Pilot randomised clinical trial.

Anaesthesia·2026
Same journal

Opioid-free vs. opioid-inclusive anaesthesia with or without regional anaesthesia for postoperative pain.

Anaesthesia·2026
Same journal

Optimal dose of intra-operative dexmedetomidine for postoperative delirium prevention: a reply.

Anaesthesia·2026
Same journal

Optimal dose of intra-operative dexmedetomidine for postoperative delirium prevention.

Anaesthesia·2026
Same journal

Pain control or brain protection with esketamine: a reply.

Anaesthesia·2026
Same journal

A step forward for patient-centred fasting guidelines: a reply.

Anaesthesia·2026
See all related articles

Using smaller tracheal tubes (6.0-6.5 mm) for positive pressure ventilation in adults slightly increased proximal inflation pressure but maintained satisfactory ventilation. Distal pressures remained unaffected, suggesting these smaller tubes are clinically viable.

Area of Science:

  • Anesthesiology
  • Respiratory Medicine
  • Critical Care

Background:

  • Positive pressure ventilation is crucial for respiratory support.
  • Tracheal tube size selection impacts ventilation pressures and patient outcomes.
  • Understanding pressure dynamics in different tube sizes is essential for safe mechanical ventilation.

Purpose of the Study:

  • To measure peak inflation and end-expiratory pressures in smaller tracheal tubes during positive pressure ventilation.
  • To compare pressure measurements at proximal and distal ends of 6.0 mm and 6.5 mm tracheal tubes.
  • To assess the clinical adequacy of smaller tracheal tubes for positive pressure ventilation.

Main Methods:

  • Measurements of peak inflation and end-expiratory pressures were taken.

Related Experiment Videos

  • Pressures were recorded at both proximal and distal ends of two tracheal tube sizes (6.0 mm and 6.5 mm).
  • Study participants included adult men and women receiving positive pressure ventilation.

    • Main Results:

    • A statistically significant increase in proximal inflation pressure was observed with the smaller tracheal tube sizes (6.5 mm for men, 6.0 mm for women).
    • No significant increases in distal inflation pressure or end-expiratory pressures were found with the smaller tubes.
    • Clinically satisfactory positive pressure ventilation was achieved using both 6.0 mm and 6.5 mm tracheal tubes.

    Conclusions:

    • Smaller tracheal tubes (6.0-6.5 mm) can provide clinically satisfactory positive pressure ventilation.
    • While proximal pressures may increase slightly with smaller tubes, distal pressures remain unaffected.
    • The findings support the use of appropriately sized smaller tracheal tubes, with consideration of potential advantages and disadvantages.