• Kathleen L Meert, Russell Telford, Richard Holubkov, Beth S Slomine, James R Christensen, J Michael Dean, Frank W Moler, and Therapeutic Hypothermia after Pediatric Cardiac Arrest (THAPCA) Trial Investigators.
• 1Department of Pediatrics, Children's Hospital of Michigan, Detroit, MI.2Wayne State University, Detroit, MI.3Department of Pediatrics, University of Utah, Salt Lake City, UT.4Kennedy Krieger Institute, Baltimore, MD.5Johns Hopkins University, Baltimore, MD.6Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, MI.
• Pediatr Crit Care Me. 2016 Dec 1; 17 (12): e543-e550.

ObjectiveTo investigate relationships between cardiac arrest characteristics and survival and neurobehavioral outcome among children recruited to the Therapeutic Hypothermia after Pediatric Cardiac Arrest Out-of-Hospital trial.DesignSecondary analysis of Therapeutic Hypothermia after Pediatric Cardiac Arrest Out-of-Hospital trial data.SettingThirty-six PICUs in the United States and Canada.PatientsAll children (n = 295) had chest compressions for greater than or equal to 2 minutes, were comatose, and required mechanical ventilation after return of circulation.InterventionsNeurobehavioral function was assessed using the Vineland Adaptive Behavior Scales, Second Edition at baseline (reflecting prearrest status) and 12 months postarrest. U.S. norms for Vineland Adaptive Behavior Scales, Second Edition scores are 100 (mean) ± 15 (SD). Higher scores indicate better functioning. Outcomes included 12-month survival and 12-month survival with Vineland Adaptive Behavior Scales, Second Edition greater than or equal to 70.Measurement And Main ResultsCardiac etiology of arrest, initial arrest rhythm of ventricular fibrillation/tachycardia, shorter duration of chest compressions, compressions not required at hospital arrival, fewer epinephrine doses, and witnessed arrest were associated with greater 12-month survival and 12-month survival with Vineland Adaptive Behavior Scales, Second Edition greater than or equal to 70. Weekend arrest was associated with lower 12-month survival. Body habitus was associated with 12-month survival with Vineland Adaptive Behavior Scales, Second Edition greater than or equal to 70; underweight children had better outcomes, and obese children had worse outcomes. On multivariate analysis, acute life threatening event/sudden unexpected infant death, chest compressions more than 30 minutes, and weekend arrest were associated with lower 12-month survival; witnessed arrest was associated with greater 12-month survival. Acute life threatening event/sudden unexpected infant death, other respiratory causes of arrest except drowning, other/unknown causes of arrest, and compressions more than 30 minutes were associated with lower 12-month survival with Vineland Adaptive Behavior Scales, Second Edition greater than or equal to 70.ConclusionsMany factors are associated with survival and neurobehavioral outcome among children who are comatose and require mechanical ventilation after out-of-hospital cardiac arrest. These factors may be useful for identifying children at risk for poor outcomes, and for improving prevention and resuscitation strategies.

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