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

Programmed left ventricular contrast injection. A method to minimize left ventricular irritability during angiography

J H Caldwell, J W Kennedy

    American Heart Journal
    |February 1, 1977
    PubMed
    Summary

    Premature contractions during left ventricular angiography can affect volume analysis. Starting injections during diastole or using pressure rate-delay offers minimal benefit in reducing these arrhythmias.

    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

    Atomic disintegration.

    Occupational medicine·2010
    Same author

    Prophylaxis against cervical malignancy.

    Virginia medical monthly·2010
    Same author

    ACC/AHA guidelines of percutaneous coronary interventions (revision of the 1993 PTCA guidelines)--executive summary. A report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (committee to revise the 1993 guidelines for percutaneous transluminal coronary angioplasty).

    Journal of the American College of Cardiology·2001
    Same author

    ACC/AHA guidelines for percutaneous coronary intervention (revision of the 1993 PTCA guidelines)-executive summary: a report of the American College of Cardiology/American Heart Association task force on practice guidelines (Committee to revise the 1993 guidelines for percutaneous transluminal coronary angioplasty) endorsed by the Society for Cardiac Angiography and Interventions.

    Circulation·2001
    Same author

    Cardiac receptor physiology and its application to clinical imaging: present and future.

    Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology·2001
    Same author

    Compact myelin dictates the differential targeting of two sodium channel isoforms in the same axon.

    Neuron·2001

    Area of Science:

    • Cardiology
    • Medical Imaging

    Background:

    • Left ventricular angiography is crucial for assessing cardiac function.
    • Premature atrial contractions (PACs) and premature ventricular contractions (PVCs) can compromise the accuracy of quantitative volume analysis.
    • Understanding factors influencing these arrhythmias is important for improving diagnostic reliability.

    Purpose of the Study:

    • To investigate the incidence of PACs and PVCs during left ventricular power injections.
    • To identify factors influencing the occurrence of these arrhythmias, including injection timing and catheter type.
    • To evaluate the efficacy of specific techniques in reducing injection-induced arrhythmias.

    Main Methods:

    • Analysis of 300 left ventricular power injections.
    • Correlation of arrhythmia occurrence with injection timing relative to the cardiac cycle (T wave, P wave).

    Related Experiment Videos

  • Comparison of arrhythmia rates between different catheter types (Gensini vs. pigtail) and modified injection protocols.

    • Main Results:

    • PVCs occurred in 28% and PACs in 6% of injections.
    • Injections initiated near the T wave end had a 44% PVC rate, versus 11% when initiated during the P wave.
    • Pigtail catheters showed a higher PVC incidence (37%) than Gensini catheters (24%).
    • Delayed pressure development and ECG-triggered injections did not significantly reduce PVCs.

    Conclusions:

    • Injection timing and catheter type influence the rate of premature contractions during left ventricular angiography.
    • Current methods like delayed injections or ECG triggering are not highly effective in preventing these arrhythmias.
    • Further strategies are needed to minimize injection-induced arrhythmias for reliable quantitative analysis.