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 ventricular function during support with an asynchronous pulsatile left ventricular assist device.

M C D Dalby1, N R Banner, P Tansley

  • 1Harefield Hospital, Royal Brompton and Harefield NHS Trust, London, UK

The Journal of Heart and Lung Transplantation : the Official Publication of the International Society for Heart Transplantation
|March 14, 2003
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

The Adipose Organ Is a Unitary Structure in Mice and Humans.

Biomedicines·2022
Same author

The use of portable XRF as a forensic geoscience non-destructive trace evidence tool for environmental and criminal investigations.

Forensic science international·2022
Same author

The older surgical patient - to operate or not? A state of the art review.

Anaesthesia·2020
Same author

The psychological effects of facial disfigurement.

Journal of wound care·2016
Same author

Environmental provisions for children in A&E.

Emergency nurse : the journal of the RCN Accident and Emergency Nursing Association·2016
Same author

Effect of Oral Nutritional Supplements On Hospital Outcomes in Patients Aged 65+ With Congestive Heart Failure.

Value in health : the journal of the International Society for Pharmacoeconomics and Outcomes Research·2016
Same journal

Alveolar macrophage activation and polarization signatures in stable lung transplant recipients and chronic lung allograft dysfunction.

The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation·2026
Same journal

Distinct Metabolomic and Lipidomic Profiles Across Donation after Circulatory Death Recovery Strategies Reveal a Common Signature Associated with Primary Graft Dysfunction.

The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation·2026
Same journal

Antibody-mediated rejection after heart transplantation: diagnostic gaps, suboptimal outcomes, and emerging tools.

The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation·2026
Same journal

What sotatercept can teach us about the right ventricle in pulmonary arterial hypertension.

The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation·2026
Same journal

The Future of Heart Transplant Data Science Requires Common Data Models.

The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation·2026
Same journal

From Guideline to Practice: Operationalizing Telomere Length Testing in ILD and Lung Transplantation.

The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation·2026
See all related articles

Monitoring left ventricular assist device (LVAD) patients is crucial. Echocardiography during LVAD support reveals cyclical LV function variations, with the best measurements during pump-on periods indicating true recovery.

Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Medical Devices

Background:

  • Left ventricular assist devices (LVADs) support severe heart failure patients awaiting transplantation.
  • Assessing left ventricular (LV) function recovery during LVAD support is essential.
  • Current monitoring methods may not fully capture intrinsic LV performance.

Purpose of the Study:

  • To evaluate the feasibility of studying LV function during LVAD support.
  • To investigate the impact of LVAD-LV interaction on LV function measurements.
  • To determine the best echocardiographic method for assessing LV recovery in LVAD patients.

Main Methods:

  • Echocardiographic assessment of LV function in 10 patients with implanted LVADs.
  • Analysis of cyclical variations in LV dimensions and fractional shortening (FS).

Related Experiment Videos

  • Comparison of pump-on measurements with brief pump-off studies.

    • Main Results:

    • LV function measurements (dimensions, FS, transmitral flow) varied cyclically with LVAD phase.
    • The "best" pump-on FS correlated with pump-off FS, unlike the "worst" pump-on FS.
    • Pump-off FS (18%) was significantly greater than the "worst" pump-on FS (5%).

    Conclusions:

    • Echocardiography can assess LV function during LVAD support and brief interruptions.
    • LV function measurements are influenced by the phase relationship between the LV and LVAD.
    • The "best" pump-on FS measurements are most representative of intrinsic LV performance and recovery potential.