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

Left atrial appendage flow velocities in subjects with normal left ventricular function.

Y Agmon1, B K Khandheria, I Meissner

  • 1Division of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota 55905, USA.

The American Journal of Cardiology
|October 6, 2000
PubMed
Summary

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

Radiological phenotyping in patients with SOX10 pathogenic variants: insights into neck, brain and temporal bones abnormalities.

AJNR. American journal of neuroradiology·2026
Same author

Artificial intelligence for cancer screening and surveillance.

ESMO real world data and digital oncology·2026
Same author

Rate of change in upper and lower motor neuron burden is associated with survival in amyotrophic lateral sclerosis.

Journal of neurology·2025
Same author

Modelling occurrence and environmental risk of azithromycin in an intermittent river: Applying hydrological and water quality models.

Journal of contaminant hydrology·2025
Same author

The effective enhancement of information in 3D small-world networks of biological neuronal cells.

Biomedical physics & engineering express·2023
Same author

Surely you are joking, Mr Docking!

Chemical Society reviews·2023

Left atrial appendage (LAA) flow velocities decrease with age. This study establishes reference values for LAA flow in the general population, finding age is a key determinant.

Area of Science:

  • Cardiology
  • Echocardiography
  • Gerontology

Background:

  • Left atrial appendage (LAA) function is crucial for preventing thromboembolism.
  • Understanding LAA flow velocity determinants is important for cardiovascular risk assessment.

Purpose of the Study:

  • To establish reference values for LAA flow velocities in the general population.
  • To identify factors influencing LAA contraction and filling velocities.

Main Methods:

  • Transesophageal echocardiography used in 310 subjects aged >= 45 years.
  • Population-based sample from the "Stroke Prevention: Assessment of Risk in a Community" study.
  • Exclusion criteria included arrhythmias, impaired LV systolic function, and valvular disease.

Main Results:

Related Experiment Videos

  • LAA flow velocities (contraction and filling) significantly decrease with age.
  • Age-related decline was 4.1 cm/s for contraction and 2.0 cm/s for filling per decade.
  • Men had higher contraction velocities than women; heart rate showed a nonlinear association with contraction velocity.

Conclusions:

  • Reference values for LAA flow velocities are established for the general population.
  • Age is a significant determinant of declining LAA flow velocities.
  • Preserved left ventricular systolic function is a key characteristic of the studied population.