Related Experiment Video
Updated: Aug 1, 2026

A Rat Model of Ventricular Fibrillation and Resuscitation by Conventional Closed-chest Technique
Published on: April 26, 2015
Post-resuscitation right ventricular dysfunction: delineation and treatment with dobutamine
Robyn J Meyer1, Karl B Kern, Robert A Berg
1Department of Pediatrics, University of Arizona Sarver Heart Center, University of Arizona College of Medicine, Tucson, AZ, USA.
This study shows that cardiac arrest causes right ventricular dysfunction. Dobutamine treatment significantly improved right ventricular function after resuscitation in swine.
Area of Science:
- Cardiology
- Critical Care Medicine
- Physiology
Background:
- Left ventricular dysfunction post-resuscitation is documented.
- Dobutamine improves left ventricular function after resuscitation.
- Right ventricular function post-resuscitation remains understudied.
Purpose of the Study:
- To investigate right ventricular function following cardiac arrest resuscitation.
- To determine if dobutamine improves post-resuscitation right ventricular function.
Main Methods:
- 28 swine underwent 15 minutes of ventricular fibrillation followed by resuscitation.
- Right ventricular function was assessed before and after resuscitation.
- Animals received either dobutamine (10 mcg/kg/min) or served as controls.
Main Results:
- Control animals exhibited right ventricular dysfunction (decreased ejection fraction, increased end-diastolic pressure).
- Dobutamine-treated animals showed significant improvement in right ventricular function compared to controls.
Conclusions:
- Prolonged cardiac arrest leads to right ventricular systolic and diastolic dysfunction.
- Dobutamine effectively mitigates post-resuscitation right ventricular dysfunction.
More Related Videos
07:41Induction and Phenotyping of Acute Right Heart Failure in a Large Animal Model of Chronic Thromboembolic Pulmonary Hypertension
Published on: March 17, 2022
08:19Transthoracic Echocardiography to Assess Post-Resuscitation Left Ventricular Dysfunction After Acute Myocardial Infarction and Cardiac Arrest in Pigs
Published on: July 12, 2022
Related Concept Videos
Cardiopulmonary Resuscitation III: AED Use
Cardiopulmonary Resuscitation IV: Pharmacological Management
Heart Failure V: Medical Management
Heart Failure VI: Adjunct Therapies
Cardiomyopathy II: Dilated Cardiomyopathy
Cardiomyopathy V: Interprofessional Care