title: Critical care for pediatric asthma: wide care variability and challenges for study.
abstract: OBJECTIVE
  To describe pediatric severe asthma care, complications, and outcomes to plan for future prospective studies by the Collaborative Pediatric Critical Care Research Network.
  
  
  METHODS
  Retrospective cohort study.
  
  
  METHODS
  : Pediatric intensive care units in the United States that submit administrative data to the Pediatric Health Information System.
  
  
  METHODS
  Children 1-18 yrs old treated in a Pediatric Health Information System pediatric intensive care unit for asthma during 2004-2008.
  
  
  METHODS
  None.
  
  
  RESULTS
  Thirteen-thousand five-hundred fifty-two children were studied; 2,812 (21%) were treated in a Collaborative Pediatric Critical Care Research Network and 10,740 (79%) were treated in a non-Collaborative Pediatric Critical Care Research Network pediatric intensive care unit. Medication use in individual Collaborative Pediatric Critical Care Research Network centers differed widely: ipratropium bromide (41%-84%), terbutaline (11%-74%), magnesium sulfate (23%-64%), and methylxanthines (0%-46%). Complications including pneumothorax (0%-0.6%), cardiac arrest (0.2%-2%), and aspiration (0.2%-2%) were rare. Overall use of medical therapies and complications at Collaborative Pediatric Critical Care Research Network centers were representative of pediatric asthma care at non-Collaborative Pediatric Critical Care Research Network pediatric intensive care units. Median length of pediatric intensive care unit stay at Collaborative Pediatric Critical Care Research Network centers was 1 to 2 days and death was rare (0.1%-3%). Ten percent of children treated at Collaborative Pediatric Critical Care Research Network centers received invasive mechanical ventilation compared to 12% at non-Collaborative Pediatric Critical Care Research Network centers. Overall 44% of patients who received invasive mechanical ventilation were intubated in the pediatric intensive care unit. Children intubated outside the pediatric intensive care unit had significantly shorter median ventilation days (1 vs. 3), pediatric intensive care unit days (2 vs. 4), and hospital days (4 vs. 7) compared to those intubated in the pediatric intensive care unit. Among children who received mechanical respiratory support, significantly more (41% vs. 25%) were treated with noninvasive ventilation and significantly fewer (41% vs. 58%) were intubated before pediatric intensive care unit care when treated in a Pediatric Health Information System hospital emergency department.
  
  
  CONCLUSIONS
  Marked variations in medication therapies and mechanical support exist. Death and other complications were rare. More than half of patients treated with mechanical ventilation were intubated before pediatric intensive care unit care. Site of respiratory mechanical support initiation was associated with length of stay.
authors: Department of Pediatrics, University of Utah, Salt Lake City, UT, USA. Susan.Bratton@hsc.utah.edu
authors: Susan L
authors: SL
authors: Bratton
authors: Christopher J L
authors: CJ
authors: Newth
authors: Athena F
authors: AF
authors: Zuppa
authors: Frank W
authors: FW
authors: Moler
authors: Kathleen L
authors: KL
authors: Meert
authors: Robert A
authors: RA
authors: Berg
authors: John
authors: J
authors: Berger
authors: David
authors: D
authors: Wessel
authors: Murray
authors: M
authors: Pollack
authors: Rick
authors: R
authors: Harrison
authors: Joseph A
authors: JA
authors: Carcillo
authors: Thomas P
authors: TP
authors: Shanley
authors: Teresa
authors: T
authors: Liu
authors: Richard
authors: R
authors: Holubkov
authors: J Michael
authors: JM
authors: Dean
authors: Carol E
authors: CE
authors: Nicholson
mesh_terms: D000293:Adolescent; D018927:Anti-Asthmatic Agents / Q000627:therapeutic use; D001249:Asthma / Q000401:mortality / Q000503:physiopathology / Q000628:therapy*; D002648:Child; D002675:Child, Preschool; D003422:Critical Care; D005260:Female; D006801:Humans; D007223:Infant; D015278:Intensive Care Units, Pediatric; D008297:Male; D008991:Monitoring, Physiologic; D012121:Respiration, Artificial; D012189:Retrospective Studies
chemical_list: D018927:Anti-Asthmatic Agents