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Published on: April 7, 2021
Acute respiratory distress syndrome in children: physiology and management
1Division of Pediatric Critical Care Medicine, Department of Pediatrics, Center for Excellence in Pulmonary Biology, Lucile Packard Children's Hospital, Stanford University School of Medicine, Stanford, California, USA. cornfield@stanford.edu
Insights
Acute Respiratory Distress Syndrome (ARDS) in children is a serious condition. Optimizing treatment through understanding its pathophysiology and employing lung-protective ventilation strategies improves survival and minimizes lung injury.
Area of Science:
- Pediatric critical care medicine
- Respiratory physiology
- Neonatology
Background:
- Acute Respiratory Distress Syndrome (ARDS) is a significant cause of mortality and morbidity in pediatric populations.
- Risk factors for ARDS in children include trauma, pneumonia, aspiration, and immune compromise.
- Understanding the underlying pathophysiologic processes is crucial for effective management.
Purpose of the Study:
- To review the pathophysiologic mechanisms of ARDS development in children.
- To provide a physiologic basis for optimizing ARDS treatment strategies in pediatric patients.
- To enhance clinical outcomes for children with ARDS.
Main Methods:
- Literature review focusing on pediatric ARDS pathophysiology and treatment.
- Analysis of current evidence regarding ventilation strategies and adjunctive therapies.
- Synthesis of physiologic principles guiding ARDS management.
Main Results:
- An open-lung ventilation strategy is associated with improved survival and reduced lung injury.
- Key components of lung-protective ventilation include adequate positive end-expiratory pressure (PEEP), limited tidal volume (5-7 cc/kg), and low plateau pressure (≤30 cmH2O).
- The relative benefits of high-frequency oscillatory ventilation, surfactant replacement, and inhaled nitric oxide are discussed.
Conclusions:
- ARDS continues to be a critical challenge in pediatric care, contributing to significant mortality and morbidity.
- Application of established physiologic principles in clinical practice can optimize patient outcomes.
- Effective management hinges on understanding ARDS pathophysiology and implementing lung-protective ventilation.
Purpose Of Review:
The present review seeks to review the pathophysiologic processes that underlie the development of acute respiratory distress syndrome (ARDS) in children. The review intends to provide the physiologic foundation for the treatment strategies that are associated with the most optimal outcome.
Recent Findings:
In infants and children, ARDS remains a significant cause of morbidity and mortality. Although any infant or child can develop ARDS, children who have experienced trauma, pneumonia, aspiration, or immune compromise are at increased risk. Data indicate that adoption of an open-lung ventilation strategy, characterized by sufficient positive end-expiratory pressure to avoid atelectasis, a tidal volume that is limited to less than 5-7 cc/kg per breath and a plateau pressure of 30 cm of water or less provides the greatest likelihood of survival and minimizes lung injury. The relative benefits of strategies such as high frequency oscillatory ventilation, surfactant replacement therapy and inhaled nitric oxide are considered.
Summary:
ARDS remains a cause of significant mortality and morbidity in children. By employing sound physiologic principles, clinical outcomes can be optimized.
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