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SNAP-II Score
SNAP-II Predicts Severe Intraventricular Hemorrhage and Chronic Lung Disease in the Neonatal Intensive Care Unit. Chien LY, Whyte R, Thiessen P, et al. J Perinatol (Jan 2002); 22: 26-30.
This study was done to determine whether the Score for Acute Neonatal Physiology, Version II (SNAP-II) could help predict which infants would develop severe intraventricular hemorrhage (IVH) or chronic lung disease (CLD). 4226 infants < 32 weeks gestational age were scored with SNAP-II. SNAP-II was a significant independent predictor of severe IVH and CLD. The addition of SNAP-II to models using gestational age and traditional risk variables significantly improved model prediction.
Comment. SNAP-II is a simplified neonatal illness severity score that measures 6 physiologic variables during the first 12 hours of life (lowest blood pressure, lowest temperature, pO2/FIO2 ratio, lowest pH, seizures and urine output). The score has previously been validated as a mortality risk predictor. This study demonstrates that this score is also a significant predictor for severe IVH and CLD. Acuity scores such as SNAP-II will add significantly to our ability to predict the risk of death or serious morbidities in small premature babies. Moreover, SNAP-II will give us a better way to compare outcomes between different NICU populations.
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