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Comparative Study
. 2010;14(6):R202.
doi: 10.1186/cc9323. Epub 2010 Nov 9.

Differences in organ dysfunctions between neonates and older children: a prospective, observational, multicenter study

Nawar Bestati  1 , Stéphane Leteurtre, Alain Duhamel, François Proulx, Bruno Grandbastien, Jacques Lacroix, Francis Leclerc
Affiliations
Comparative Study

Differences in organ dysfunctions between neonates and older children: a prospective, observational, multicenter study

Nawar Bestati et al. Crit Care. 2010.

Abstract

Introduction: The multiple organ dysfunction syndrome (MODS) is a major cause of death for patients admitted to pediatric intensive care units (PICU). The Pediatric Logistic Organ Dysfunction (PELOD) score has been validated in order to describe and quantify the severity of organ dysfunction (OD). There are several physiological differences between neonates and older children. The objective of the study was to determine whether there are differences in incidence of ODs and mortality rate between full-term neonates (age <28 days) and older children.

Methods: In a prospective, observational study, 1806 patients, admitted to seven PICUs between September 1998 and February 2000 were included. The PELOD score, which includes six organ dysfunctions and 12 variables, was recorded daily. For each variable, the most abnormal value was used to define the daily OD. For each OD, the most abnormal value each day and that during the entire stay were used in calculating the daily PELOD and PELOD scores, respectively. The relationships between OD, daily OD, PELOD, daily PELOD and mortality were compared between the two strata (neonates, older children) based on the discrimination power, logistic and multiple regression analyses.

Results: Of the 1806 enrolled patients 171 (9.5%) were neonates. Incidence of MODS and mortality rate were higher among neonates than in older children (14.6% vs. 5.5%, P < 10(-7); 75.4%, vs. 50.9%, P < 10(-4); respectively). Daily PELOD scores were significantly higher in neonates from day 1 to day 4. Daily cardiovascular, respiratory and renal dysfunction scores from day 1 to day 4 as well as the PELOD score for the entire pediatric intensive care unit stay were also significantly higher in neonates. Neurological, cardiovascular, and hepatic dysfunctions were independent predictors of death among neonates while all ODs significantly contributed to the risk of mortality in older children.

Conclusions: Our data demonstrate that incidence of MODS and mortality rate are higher among neonates compared to older children. Neurological, cardiovascular, and hepatic dysfunctions were the only significant contributors to neonatal mortality. Stratification for neonates versus older children might be useful in clinical trials where MODS is considered as an outcome measure.

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Figures

Figure 1
Figure 1
Pediatric logistic organ dysfunction (PELOD) score values on the first day (d1PELOD score) and mortality rate in neonates and older children. *P < 0.04.
Figure 2
Figure 2
Mean daily pediatric logistic organ dysfunction (PELOD) score values (mean dPELOD) in neonates and older children. *Significant difference between the two strata.
Figure 3
Figure 3
Incidence of organ dysfunctions during the pediatric intensive care unit stay in neonates and older children. *Significant differences between the two strata.
Figure 4
Figure 4
Frequencies of organ dysfunctions during the pediatric intensive care unit stay among survivors and non-survivors: neonates (a) and older children (b). *Significant difference between survivors and non-survivors.
Figure 5
Figure 5
Incidence of daily organ dysfunctions in neonates (black triangles) and older children (black squares). *Significant difference between the two strata.
See this image and copyright information in PMC

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