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

Bi-morphic atrial flutter

T Wang, J Danoviz

    Journal of Electrocardiology
    |April 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    This case study presents atrial flutter with a unique response to direct current shock, altering its typical "saw-tooth" pattern. It supports the theory of a rapidly discharging atrial focus in atrial flutter mechanisms.

    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

    TIP39: a new neuropeptide and PTH2-receptor agonist from hypothalamus.

    Nature neuroscience·1999
    Same author

    Application and comparison of derivatized cellulose and amylose chiral stationary phases for the separation of enantiomers of pharmaceutical compounds by high-performance liquid chromatography.

    Journal of chromatography. A·1999
    Same author

    Recent advances in the medicinal chemistry of taxoids with novel beta-amino acid side chains.

    Current medicinal chemistry·1999
    Same author

    Nongastric H+,K+-ATPase: cell biologic and functional properties.

    Seminars in nephrology·1999
    Same author

    Dose dependency of L-arginine in neonatal myocardial protection: the nitric oxide paradox.

    The Journal of thoracic and cardiovascular surgery·1999
    Same author

    L-arginine, prostaglandin, and white cell filtration equally improve myocardial protection in stressed neonatal hearts.

    The Journal of thoracic and cardiovascular surgery·1999
    Same journal

    Spatial proximity or vector orientation? Re-evaluating ECG interpretation in anterior myocardial infarction using cardiac magnetic resonance.

    Journal of electrocardiology·2026
    Same journal

    Pacing spikes without visible QRS complexes: Failure to capture?

    Journal of electrocardiology·2026
    Same journal

    Rethinking prediction of sudden cardiac arrest: The role of electrocardiography in forecasting low-incidence, high-consequence events.

    Journal of electrocardiology·2026
    Same journal

    New subtle anterior Q-wave and LAD occlusion.

    Journal of electrocardiology·2026
    Same journal

    Monday-to-Friday workweek trajectory of ventricular repolarization and heart rate variability in apparently stable adults: A repeated-measures study.

    Journal of electrocardiology·2026
    Same journal

    What the electrocardiogram is being asked to detect in acute myocardial infarction: The case for the OMI/NOMI paradigm.

    Journal of electrocardiology·2026
    See all related articles

    Area of Science:

    • Cardiology
    • Electrophysiology

    Background:

    • Atrial flutter typically presents with a characteristic
    • saw-tooth
    • morphology on electrocardiograms.
    • Standard treatments like digoxin and quinidine may not always restore normal sinus rhythm.

    Observation:

    • A case of atrial flutter resistant to full doses of digoxin and quinidine is described.
    • Low energy direct current shock altered the classic
    • saw-tooth
    • atrial flutter morphology to an unusual form.
    • Atrial and ventricular rates remained synchronized despite changes in the F wave pattern post-cardioversion.

    Findings:

    • Following cardioversion, 0.5 mg of digoxin was administered, leading to the patient's reversion to normal sinus rhythm.

    Related Experiment Videos

  • The observed changes in atrial electrograms suggest a modification in intra-atrial conduction pathways.

    • Implications:

    • This case supports the hypothesis that a rapidly discharging atrial focus is a key mechanism in the development of atrial flutter.
    • It highlights the potential for electrical cardioversion to influence intra-atrial conduction and alter the electrocardiographic presentation of atrial flutter.