• Heidi Flori, Mary K Dahmer, Anil Sapru, Michael W Quasney, and Pediatric Acute Lung Injury Consensus Conference Group.
• 1Division of Pediatric Critical Care, Department of Medicine, Children's Hospital & Research Center Oakland, Oakland, CA. 2Division of Pediatric Critical Care, Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, MI. 3Division of Critical Care, Department of Pediatrics, University of California San Francisco, San Francisco, CA. 4Division of Pediatric Critical Care, Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, MI.
• Pediatr Crit Care Me. 2015 Jun 1; 16 (5 Suppl 1): S41-50.

ObjectivesTo determine the impact of patient-specific and disease-related characteristics on the severity of illness and on outcome in pediatric patients with acute respiratory distress syndrome with the intent of guiding current medical practice and identifying important areas for future research.DesignElectronic searches of PubMed, EMBASE, Web of Science, Cochrane, and Scopus were conducted. References were reviewed for relevance and features included in the following section.SettingsNot applicable.SubjectsPICU patients with evidence of acute lung injury, acute hypoxemic respiratory failure, and acute respiratory distress syndrome.InterventionsNot applicable.Measurements And Main ResultsThe comorbidities associated with outcome in pediatric acute respiratory distress syndrome can be divided into 1) patient-specific factors and 2) factors inherent to the disease process. The primary comorbidity associated with poor outcome is preexisting congenital or acquired immunodeficiency. Severity of disease is often described by factors identifiable at admission to the ICU. Many measures that are predictive are influenced by the underlying disease process itself, but may also be influenced by nutritional status, chronic comorbidities, or underlying genetic predisposition. Of the measures available at the bedside, both PaO2/FIO2 ratio and oxygenation index are fairly consistent and robust predictors of disease severity and outcomes. Multiple organ system dysfunction is the single most important independent clinical risk factor for mortality in children at the onset of acute respiratory distress syndrome.ConclusionsThe assessment of oxygenation and ventilation indices simultaneously with genetic and biomarker measurements holds the most promise for improved risk stratification for pediatric acute respiratory distress syndrome patients in the very near future. The next phases of pediatric acute respiratory distress syndrome pathophysiology and outcomes research will be enhanced if 1) age group differences are examined, 2) standardized datasets with adequately explicit definitions are used, 3) data are obtained at standardized times after pediatric acute respiratory distress syndrome onset, and 4) nonpulmonary organ failure scores are created and implemented.

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