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Published on: November 28, 2016
Respiratory viruses in children admitted to hospital intensive care units: evaluating the CLART® Pneumovir DNA array
Emilie Frobert1, V Escuret, E Javouhey
1Laboratoire de Virologie Est, Centre de Biologie et Pathologie Est, Hospices Civils de Lyon, Bron Cedex, Lyon, France. emilie.frobert@chu-lyon.fr
Insights
This study found that viruses are common in pediatric intensive care unit (PICU) patients, with respiratory syncytial virus (RSV) and rhinovirus frequently detected. The CLART® Pneumovir DNA array effectively identified multiple viral infections in critically ill children.
Area of Science:
- Pediatric Infectious Diseases
- Virology
- Critical Care Medicine
Background:
- Viral respiratory infections are a major cause of severe illness and hospitalization in children.
- Accurate and rapid viral detection is crucial for managing pediatric respiratory distress in intensive care settings.
Purpose of the Study:
- To investigate the spectrum of respiratory viruses in children admitted to a hospital intensive care unit (ICU).
- To evaluate the utility of the CLART® Pneumovir DNA array assay for simultaneous detection of multiple respiratory viruses.
Main Methods:
- Respiratory specimens from 53 children under 2 years old admitted to the ICU during the 2008-2009 winter season were analyzed.
- The CLART® Pneumovir DNA array assay was used to detect 11 genera of respiratory viruses.
- Virological findings were correlated with clinical features, risk factors, and severity criteria.
Main Results:
- At least one virus was detected in 78% of samples.
- Respiratory syncytial virus (RSV) was identified in 73.6% and rhinovirus in 24.6% of positive samples.
- Multiple infections were more common in children without risk factors (42%).
- RSV appeared to cause severe symptoms independently, as intubation needs did not differ between single and co-infections.
Conclusions:
- The CLART® Pneumovir DNA array is effective for diagnosing severe viral respiratory infections in critically ill children.
- This assay can identify a broader range of viruses than conventional methods, especially in complex ICU cases.
- Understanding viral co-infections is important for managing pediatric respiratory distress.
Abstract:
Viruses play a significant part in children's respiratory infections, sometimes leading to hospitalization in cases of severe respiratory distress. The aim of this study was to investigate respiratory infections in children treated in a hospital intensive care unit (ICU). Assays were performed using the CLART® Pneumovir DNA array assay (Genomica, Coslada, Madrid, Spain), which makes it possible to detect 11 genus of respiratory viruses simultaneously. During the winter of 2008-2009, 73 respiratory specimens collected from 53 children under 2 years of age and admitted to an ICU were tested. At least one virus was detected in 78% (57/73) of the samples. The virological diagnosis was based on single infections in 65% (37/57) and on multiple infections in 35% (20/57) of cases. The array assay revealed respiratory syncytial virus (RSV) in 73.6% (42/57) of the samples and rhinovirus in 24.6% (14/57), either on their own or in co-infections. All viruses identified in single and multiple infections were tested, taking into account clinical features, risk factors, and severity criteria. Children with no risk factors presented more multiple infections, up to 42% of cases, than children with at least one risk factor. RSV seemed to induce severe symptoms by itself as no difference in intubation needs was observed when RSV was detected on its own or in co-infection. The CLART® Pneumovir DNA array was useful for examining severe viral respiratory infections, when other viruses than those detected by conventional methods could be involved, particularly in an ICU.
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