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 language | English |
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Pages (from-to) | e243-9 |
Journal | Pediatric Critical Care Medicine |
Volume | 14 |
Issue number | 5 |
DOIs | |
Publication status | Published - Jun 2013 |
Externally published | Yes |
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