• Scott L Weiss, Lisa A Asaro, Heidi R Flori, Geoffrey L Allen, David Wypij, Martha A Q Curley, and Randomized Evaluation of Sedation Titration for Respiratory Failure (RESTORE) Study Investigators.
• 1Department of Anesthesiology and Critical Care, The Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA. 2Department of Cardiology, Boston Children's Hospital, Boston, MA. 3Division of Pediatric Critical Care, C.S. Mott Children's Hospital, University of Michigan, Ann Arbor, MI. 4Division of Critical Care, Department of Pediatrics, Children's Mercy Hospitals and Clinics, Kansas City, MO. 5Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA. 6Department of Pediatrics, Harvard Medical School, Boston, MA. 7School of Nursing, University of Pennsylvania, Philadelphia, PA. 8Critical Care and Cardiovascular Program, Boston Children's Hospital, Boston, MA.
• Pediatr Crit Care Me. 2017 Apr 1; 18 (4): 319-329.

ObjectivesThe impact of extrapulmonary organ dysfunction, independent from sepsis and lung injury severity, on outcomes in pediatric acute respiratory failure is unclear. We sought to determine the frequency, timing, and risk factors for extrapulmonary organ dysfunction and the independent association of multiple organ dysfunction syndrome with outcomes in pediatric acute respiratory failure.DesignSecondary observational analysis of the Randomized Evaluation of Sedation Titration for Respiratory Failure cluster-randomized prospective clinical trial conducted between 2009 and 2013.SettingThirty-one academic PICUs in the United States.PatientsTwo thousand four hundred forty-nine children mechanically ventilated for acute respiratory failure enrolled in Randomized Evaluation of Sedation Titration for Respiratory Failure.Measurements And Main ResultsOrgan dysfunction was defined using criteria published for pediatric sepsis. Multiple organ dysfunction syndrome was defined as respiratory dysfunction one or more extrapulmonary organ dysfunctions. We used multivariable logistic regression to identify risk factors for multiple organ dysfunction syndrome, and logistic or proportional hazards regression to compare clinical outcomes. All analyses accounted for PICU as a cluster variable. Overall, 73% exhibited extrapulmonary organ dysfunction, including 1,547 (63%) with concurrent multiple organ dysfunction syndrome defined by onset on day 0/1 and 244 (10%) with new multiple organ dysfunction syndrome with onset on day 2 or later. Most patients (93%) with indirect lung injury from sepsis presented with concurrent multiple organ dysfunction syndrome, whereas patients with direct lung injury had both concurrent (56%) and new (12%) multiple organ dysfunction syndrome. Risk factors for concurrent multiple organ dysfunction syndrome included older age, illness severity, sepsis, cancer, and moderate/severe lung injury. Risk factors for new multiple organ dysfunction syndrome were moderate/severe lung injury and neuromuscular blockade. Both concurrent and new multiple organ dysfunction syndrome were associated with 90-day in-hospital mortality (concurrent: adjusted odds ratio, 6.54; 95% CI, 3.00-14.25 and new: adjusted odds ratio, 3.21; 95% CI, 1.48-6.93) after adjusting for sepsis, moderate/severe lung injury, and other baseline characteristics.ConclusionsExtrapulmonary organ dysfunction was common, generally occurred concurrent with respiratory dysfunction (especially in sepsis), and was a major risk factor for mortality in pediatric acute respiratory failure.

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