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

Improved haemodynamics with increased compression-decompression rates during ACD-CPR in pigs.

K Sunde1, L Wik, P A Naess

  • 1Norwegian Air Ambulance, Department of Research and Education in Acute Medicine, Drøbak. kjetil.sunde@ioks.uio.no

Resuscitation
|March 17, 1999
PubMed
Summary

Increasing the frequency of automated chest compression-decompression cardiopulmonary resuscitation (ACD-CPR) from 60 to 120 per minute significantly improved hemodynamic function in a pig model with ventricular fibrillation (VF). This study highlights the importance of compression rate for effective CPR.

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

Will simultaneous intra-aortic ballon pump and mechanical chest compressions become the new way of treating cardiac arrests?

Resuscitation·2024
Same author

Tidal volume measurements via transthoracic impedance waveform characteristics: The effect of age, body mass index and gender. A single centre interventional study.

Resuscitation·2021
Same author

Shock decision algorithm for use during load distributing band cardiopulmonary resuscitation.

Resuscitation·2021
Same author

Viscoelastic haemostatic assay augmented protocols for major trauma haemorrhage (ITACTIC): a randomized, controlled trial.

Intensive care medicine·2020
Same author

Intensive care doctors' preferences for arterial oxygen tension levels in mechanically ventilated patients.

Acta anaesthesiologica Scandinavica·2018
Same author

Extracorporeal cardiopulmonary resuscitation in refractory cardiac arrest - to whom and when, that's the difficult question!

Acta anaesthesiologica Scandinavica·2017

Area of Science:

  • Cardiovascular Physiology
  • Emergency Medicine
  • Resuscitation Science

Background:

  • Cardiopulmonary resuscitation (CPR) is a critical intervention for cardiac arrest.
  • Optimizing the mechanical parameters of CPR, such as compression frequency, is essential for improving patient outcomes.
  • Automated chest compression-decompression cardiopulmonary resuscitation (ACD-CPR) devices offer consistent application of mechanical forces.

Purpose of the Study:

  • To evaluate the hemodynamic effects of varying compression-decompression frequencies during ACD-CPR in a porcine model of ventricular fibrillation (VF).
  • To determine the optimal frequency for enhancing blood flow to vital organs during resuscitation efforts.

Main Methods:

  • A randomized cross-over study was conducted on 12 anesthetized pigs (17-22 kg) experiencing VF.

Related Experiment Videos

  • An automated hydraulic chest compression-decompression device was used to deliver CPR at frequencies of 60, 90, and 120 min⁻¹.
  • Hemodynamic parameters including carotid blood flow, cerebral blood flow, mean aortic pressure, myocardial blood flow, diastolic coronary perfusion pressure (CPP), and organ blood flow were measured.

    • Main Results:

    • Increasing compression-decompression frequency significantly enhanced mean carotid blood flow, cerebral blood flow, and mean aortic pressure.
    • Myocardial blood flow and diastolic CPP showed significant improvements from 60 to 90 min⁻¹, with no further significant increase at 120 min⁻¹.
    • Renal and hepatic blood flow also increased with higher frequencies, while expired CO2 levels remained unchanged.

    Conclusions:

    • Higher compression-decompression frequencies (90 and 120 min⁻¹) during ACD-CPR demonstrably improve hemodynamic parameters in a porcine model of VF.
    • The findings suggest that optimizing compression frequency is crucial for enhancing circulatory support during resuscitation.
    • Further research may explore the clinical applicability of these findings in human CPR protocols.