Resumen

FERNANDEZ, Rosalía  y  MACUARISMA LEZAMA, Pedro. Validación de dos escalas de valor pronóstico en niños que ingresan a UCI. Arch Venez Puer Ped [online]. 2010, vol.73, n.4, pp.003-007. ISSN 0004-0649.

The Pediatric Index of Mortality (PIM) and Pediatric Logistic Organ Dysfunction (PLOD) scale are scoring systems that allow assessment of the severity of illness and mortality risk adjustment in heterogeneous groups of patients. The aim of this study was to validate the accuracy and reliability of PIM and PELOD scoring in a pediatric Intensive Care Unit (ICU) Methods: 97 children under 12 years of age were included. Survival and mortality during the stay in the ICU were studied. PIM scale includes 7 parameters measured during the first hour of admission to the ICU; PELOD includes dysfunction of 6 organs and systems in 12 variables. The area under the curve was used to assess discrimination and calibration was assessed with the Hosmer-Lemeshow goodness of fit test. Results: The median patient age was 4,0 years (inter-quartile range 1,0-8,1), median length of stay was 6 days (range 3-17). Main causes for admission to the ICU were accidents 30, sepsis 19, neurological 14. Fifty eight patients (59,8%) developed multiple organic dysfunction. Observed mortality was 17,5%. Prediction of risk of mortality with PIM was significantly higher in non survivors (0,48 ± 0,35) than in survivors (0,18 ± 0,23); t test 3,40 p<0,003; calibration (p=0,025) and discrimination (area under the curve = 0,79±0,057; p<0,001) for PIM was good. Conclusions: PIM is a valid prediction index for mortality risk in pediatric ICU in our hospitals.

Palabras clave : mortality prediction models; logistic regression; multiorganic dysfunction; pediatric index of mortality.