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

High frequency ventilation and gas diffusion.

M K Chakrabarti, L Loh, I Gilchrist

    Acta Anaesthesiologica Scandinavica
    |October 1, 1984
    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

    Transnasal sphenopalatine ganglion block for post-dural puncture headache and associated tinnitus.

    Anaesthesia reports·2021
    Same author

    Perovskite BiFeO3 thin film photocathode performance with visible light activity.

    Nanotechnology·2016
    Same author

    Bacteroides are associated with GALT iNKT cell function and reduction of microbial translocation in HIV-1 infection.

    Mucosal immunology·2016
    Same author

    Exhaustion by design.

    Anaesthesia·2015
    Same author

    Heat killed multi-serotype Shigella immunogens induced humoral immunity and protection against heterologous challenge in rabbit model.

    Immunobiology·2015
    Same author

    Invariant natural killer T cells developing in the human fetus accumulate and mature in the small intestine.

    Mucosal immunology·2014
    Same journal

    Early Labour Epidural for Parturients With High BMI-A National Danish Survey.

    Acta anaesthesiologica Scandinavica·2026
    Same journal

    Contrast Media and Acute Kidney Injury in the ICU.

    Acta anaesthesiologica Scandinavica·2026
    Same journal

    The Impact of Diuretics on Mortality in Acute Kidney Injury With or Without Fluid Accumulation in Intensive Care-A Retrospective Cohort Study.

    Acta anaesthesiologica Scandinavica·2026
    Same journal

    Authors' Response to "Vasopressors in Early Burn Resuscitation: Physiological Concerns Revisited".

    Acta anaesthesiologica Scandinavica·2026
    Same journal

    Prognostic Factors for Postoperative Complications. An Aggregate Protocol for 10 Observational Studies From the Danish TRIPLE-A Cohort of 1.2 Million Surgeries.

    Acta anaesthesiologica Scandinavica·2026
    Same journal

    Backrest Position and Outcome in Comatose Survivors of Out-of-Hospital Cardiac Arrest: Protocol for a Multi-Center Randomized Comparison Within the Danish Out-of-Hospital Cardiac Arrest (DANOHCA) Trial.

    Acta anaesthesiologica Scandinavica·2026
    See all related articles

    High frequency ventilation improves CO2 removal efficiency without dead space but decreases it with dead space. Low tidal volumes during high frequency oscillation hinder CO2 elimination.

    Area of Science:

    • Respiratory Physiology
    • Mechanical Ventilation

    Background:

    • High frequency ventilation (HFV) is used in critical care.
    • Understanding CO2 removal dynamics during HFV is crucial.

    Purpose of the Study:

    • To investigate the efficiency of CO2 removal during high frequency positive pressure ventilation (HFPPV) and high frequency oscillation (HFO).
    • To assess the impact of anatomical dead space on CO2 elimination at varying frequencies.

    Main Methods:

    • A simple lung model was used to simulate ventilation.
    • Experiments were conducted with HFPPV (up to 100 b.p.m.) and HFO (360-900 b.p.m.).
    • The presence or absence of anatomical dead space was varied.

    Main Results:

    • CO2 elimination efficiency increased with frequency in HFPPV without dead space.

    Related Experiment Videos

  • Introducing dead space decreased CO2 elimination efficiency with increasing frequency during HFPPV.
  • Tidal volumes smaller than anatomical dead space prevented adequate CO2 elimination during HFO.

    • Conclusions:

    • Anatomical dead space significantly impacts CO2 removal efficiency during HFV.
    • Accelerated diffusion does not appear to be a major factor in CO2 removal during HFV or HFO in this model.