Cardiac dysfunction in pneumovirus-induced lung injury in mice

Reinout A Bem, Elske van den Berg, Ernst Suidgeest, Louise van der Weerd, Job B M van Woensel, Heynric B Grotenhuis

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

OBJECTIVE: To determine biventricular cardiac function in pneumovirus-induced acute lung injury in spontaneously breathing mice.

DESIGN: Experimental animal study.

SETTING: Animal laboratory.

SUBJECTS: C57Bl/6 mice.

INTERVENTION: Mice were inoculated with the rodent pneumovirus, pneumonia virus of mice.

MEASUREMENTS AND MAIN RESULTS: Pneumonia virus of mice-infected mice were studied for right and left ventricular function variables by high-field strength (7 Tesla) cardiac MRI at specific time points during the course of disease compared with baseline. One day before and at peak disease severity, pneumonia virus of mice-infected mice showed significant right and left ventricular systolic and diastolic volume changes, with a progressive decrease in stroke volume and ejection fraction. No evidence for viral myocarditis or viral presence in heart tissue was found.

CONCLUSIONS: These findings show adverse pulmonary-cardiac interaction in pneumovirus-induced acute lung injury, unrelated to direct virus-mediated effects on the heart.

Original languageEnglish
Pages (from-to)e243-9
JournalPediatric Critical Care Medicine
Volume14
Issue number5
DOIs
Publication statusPublished - Jun 2013
Externally publishedYes

Keywords

  • Acute Lung Injury/etiology
  • Animals
  • Cytokines/blood
  • Disease Models, Animal
  • Female
  • Magnetic Resonance Imaging
  • Mice
  • Mice, Inbred C57BL
  • Pneumovirus Infections/complications
  • Stroke Volume
  • Ventricular Dysfunction/etiology

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