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

Dural dimpling in the dog.

A R Aitkenhead, A P Hothersall, D G Gilmour

    Anaesthesia
    |January 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

    Directly visualizing dural indentation in dogs confirms its role in causing subatmospheric extradural pressure. This study demonstrates a direct relationship between the degree of dural indentation and extradural 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

    Deaths associated with anaesthesia - 65 years on.

    Anaesthesia·2021
    Same author

    Personal and medicolegal implications of awareness.

    British journal of anaesthesia·2014
    Same author

    Association of genetic polymorphisms with embryonic mortality in the chicken : III. Interactions between three loci determining egg-white proteins.

    TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·2014
    Same author

    Association of genetic polymorphisms with fertilization in the chicken.

    TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·2014
    Same author

    Risk management in anaesthesia.

    The International journal of risk & safety in medicine·2013
    Same author

    Haematoma and abscess after epidural analgesia.

    British journal of anaesthesia·2008
    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

    Area of Science:

    • Neurosurgery
    • Anesthesiology
    • Physiology

    Background:

    • The extradural space pressure is crucial for various medical procedures.
    • Dural indentation has been theorized to cause subatmospheric pressure in the extradural space.
    • Direct in-vivo human evidence for this phenomenon is lacking.

    Purpose of the Study:

    • To directly demonstrate the effect of dural indentation on extradural pressure.
    • To investigate the relationship between the degree of dural indentation and pressure changes.
    • To provide in-vivo evidence in a canine model.

    Main Methods:

    • Radiographs were used to visualize needle-induced dural dimpling in the extradural space of dogs.
    • Pressure tracings were recorded during needle advancement.

    Related Experiment Videos

  • Image intensifier observations correlated pressure changes with dural indentation.

    • Main Results:

    • Needle tip indentation of the dura was successfully visualized.
    • Advancement of the needle tip led to a progressive decrease in extradural pressure.
    • Observed pressure changes were directly proportional to the extent of dural indentation.

    Conclusions:

    • Directly demonstrates that dural indentation causes subatmospheric extradural pressure.
    • Provides in-vivo evidence supporting the proposed mechanism in a canine model.
    • Highlights the importance of dural integrity in maintaining extradural pressure homeostasis.