title: C-Reactive protein-determined injury severity: length of stay predictor in surgical infants.
abstract: OBJECTIVE
  Serum C-reactive protein (CRP) levels reflect the severity of the metabolic response to injury in critically ill children. During this period, caloric overfeeding can increase complications and delay recovery. The authors hypothesized that by avoiding excessive caloric delivery, the effect of injury severity would be the major factor determining clinical outcome.
  
  
  METHODS
  Twenty-eight surgical infants who had indirect calorimetry measurements while in the Neonatal Intensive Care Unit between August 2000 and January 2002 were studied. Serum CRP concentrations, mean energy expenditure (MEE), respiratory quotient (RQ), length of hospital stay (LOS), and caloric intake (I) at the time of indirect calorimetry were recorded. Data were analyzed using the Pearson product-moment correlation.
  
  
  RESULTS
  Peak serum CRP was significantly correlated to LOS in all patients (r = 0.79, P < .0001). When net caloric balance (I-MEE) did not exceed 5 kcal/kg/d (n = 9), peak serum CRP was correlated positively with RQ (r = 0.66, P = .05). When I-MEE exceeded 5 kcal/kg/d (n = 19), the positive correlation of serum CRP with RQ was diminished (r = 0.23, P = .33).
  
  
  CONCLUSIONS
  CRP-measured injury severity is a major determinant of clinical outcome in surgical infants. In addition, overfeeding causes additional RQ elevation.
authors.affiliation: Division of Pediatric Surgery, Department of Surgery, Rainbow Babies and Children's Hospital, Case Western Reserve University School of Medicine, Cleveland, OH, USA.
authors.forename: Diya I
authors.initials: DI
authors.lastname: Alaedeen
authors.forename: Aaric L
authors.initials: AL
authors.lastname: Queen
authors.forename: Eric
authors.initials: E
authors.lastname: Leung
authors.forename: Donald
authors.initials: D
authors.lastname: Liu
authors.forename: Walter J
authors.initials: WJ
authors.lastname: Chwals
mesh_terms: D002097:C-Reactive Protein / Q000032:analysis*; D005260:Female; D006801:Humans; D007223:Infant; D007902:Length of Stay / Q000706:statistics & numerical data*; D008297:Male; D011237:Predictive Value of Tests; D012720:Severity of Illness Index; D013514:Surgical Procedures, Operative / Q000009:adverse effects*
chemical_list: D002097:C-Reactive Protein