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Related Experiment Video

Updated: Jun 1, 2026

A Piglet Perinatal Asphyxia Model to Study Cardiac Injury and Hemodynamics after Cardiac Arrest, Resuscitation, and the Return of Spontaneous Circulation
10:55

A Piglet Perinatal Asphyxia Model to Study Cardiac Injury and Hemodynamics after Cardiac Arrest, Resuscitation, and the Return of Spontaneous Circulation

Published on: January 13, 2023

A sternal accelerometer does not impair hemodynamics during piglet CPR.

Mathias Zuercher1, Ronald W Hilwig, Mike Gura

  • 1The University of Arizona Sarver Heart Center, Tucson, AZ, USA.

Resuscitation
|June 3, 2011
PubMed
Summary
This summary is machine-generated.

A 260g accelerometer/force feedback device (AFFD) did not negatively impact hemodynamics during piglet cardiopulmonary resuscitation (CPR). This study found no adverse effects on cardiac output or myocardial blood flow when using the AFFD during CPR.

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Published on: May 26, 2023

Area of Science:

  • Cardiovascular Research
  • Medical Device Technology
  • Animal Models in Research

Background:

  • Cardiopulmonary resuscitation (CPR) effectiveness is crucial for cardiac arrest survival.
  • Real-time feedback devices aim to improve CPR quality and rescuer performance.
  • The impact of device weight on hemodynamic parameters during CPR requires investigation.

Purpose of the Study:

  • To evaluate the hemodynamic effects of a 260g accelerometer/force feedback device (AFFD) during CPR in a piglet model.
  • To determine if the AFFD's weight adversely influences cardiac output and myocardial blood flow.
  • To assess the safety of using AFFD technology in resuscitation scenarios.

Main Methods:

  • Ventricular fibrillation was induced in ten piglets (10.8 ± 1.9 kg).
  • CPR was administered for 12 minutes, with or without the AFFD placed on the chest.
  • Cardiac output and left ventricular myocardial blood flow were measured using the neutron-microsphere technique.

Main Results:

  • No significant differences in cardiac output or left ventricular myocardial blood flow were observed between groups with and without the AFFD.
  • Mean cardiac outputs were 0.42 L/min with AFFD vs. 0.31 L/min without AFFD during the first 6 minutes.
  • Left ventricular myocardial blood flows were 40.5 mL/min/100g with AFFD vs. 40.4 mL/min/100g without AFFD.

Conclusions:

  • The 260g AFFD did not adversely affect cardiac output or left ventricular myocardial blood flow during 12 minutes of CPR in piglets.
  • The device's weight did not compromise key hemodynamic parameters essential for resuscitation.
  • This suggests that AFFD technology can be safely utilized during CPR efforts without detrimental hemodynamic consequences.