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Predicting Outcome in Neonatal Hypoxic Respiratory Failure with the Score for Neonatal Acute Physiology (SNAP) and Highest Oxygen Index (OI) in the First 24 Hours of Admission

Abstract

OBJECTIVE: To determine the clinical utility of SNAP score versus the highest oxygen index (OI) in first 24 hours of admission in predicting outcome of HRF.

STUDY DESIGN: All admissions (1991 to 1999) ≥36 weeks gestation, ventilated for ≥12 hours with FiO2≥0.50, without congenital anomalies were reviewed. Primary outcome measure was survival (without ECMO) versus ECMO and/or death.

RESULTS: From 184 infants with HRF, 148 survived (without ECMO) versus 36 died and/or received ECMO. SNAP score and highest OI were similar in predicting outcome of HRF (area under ROC curve: 0.813±0.037 versus 0.814±0.041; P=0.72). Death and/or ECMO requirement were best predicted by a SNAP score of 19 (Sensitivity 75.0%, Specificity 71%) or an OI of 28 (Sensitivity 75.0%, Specificity 76.4%).

CONCLUSION: Although both, the SNAP score and highest OI, are useful and similar in predicting outcome of HRF, OI is preferable because of its ease of use. We believe the predictive value of these parameters should be evaluated in a multicenter setting.

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References

  1. Walsh-Sukys MC, Tyson JE, Wright LL . et al. Persistent pulmonary hypertension of the newborn: Trends in era before nitric oxide: practice variation and outcomes. Pediatrics 2000;105:14–20.

    Article  CAS  PubMed  Google Scholar 

  2. Goetzman BW, Riemenschneider TR . Persistence of the fetal circulation. Pediatr Res 1980;2:37–40.

    Google Scholar 

  3. John E, Roberts V, Burnard E . Persistent pulmonary hypertension of the newborn treated with hyperventilation: clinical features and outcome. Aust Paediatr J 1988;24:357–361.

    CAS  PubMed  Google Scholar 

  4. Heymann JR, Adams A, Gardner TH . Persistent pulmonary hypertension of the newborn: trends in incidence, diagnosis and management. Am J Dis Child 1984;138:592–595.

    Article  Google Scholar 

  5. Dworetz AR, Moya FR, Sabo B, Gladstone I, Gross I . Survival of infants with persistent pulmonary hypertension without extracorporeal membrane oxygenation. Pediatrics 1989;84:1–6.

    CAS  PubMed  Google Scholar 

  6. Bartlett RH, Gazzaniga AB, Toomasian J, Corwin AG, Roloff D, Rucker R . Extra-corporeal membrane oxygenation (ECMO) in neonatal respiratory failure—100 cases. Ann Surg 1986;204:236–245.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  7. Walsh MC, Stork E . Persistent pulmonary hypertension of the newborn. Rational therapy based on pathophysiology. Clin Perinatol 2001;28:609–627.

    Article  CAS  PubMed  Google Scholar 

  8. Beck R, Anderson KD, Pearson GD, Cronin J, Miller MK, Short BL . Criteria for extracorporeal membrane oxygenation in a population of infants with persistent pulmonary hypertension of the newborn. J Pedeatr Surg 1986;4:297–302.

    Article  Google Scholar 

  9. Richardson DK, Gray JE, McCormick MC, Workman K, Goldmann DA . Score for neonatal acute physiology: a physiological severity index for neonatal intensive care. Pediatrics 1993;91:617–623.

    CAS  PubMed  Google Scholar 

  10. Escobar GJ, Fischer A, Li DK, Kremers R, Armstrong MA . Score for neonatal acute physiology: validation in three kaiser permanente neonatal intensive care units. Pediatrics 1995;96:918–922.

    CAS  PubMed  Google Scholar 

  11. Stevens SM, Richardson DK, Gray JE, Goldmann DA, McCormick MC . Estimating neonatal mortality risk: an analysis of clinicians' judgments. Pediatrics 1994;93:945–950.

    CAS  PubMed  Google Scholar 

  12. Richardson DK, Phibbs CS, Gray JE, McCormick MC, Workman K, Goldmann DA . Birth weight and illness severity: independent predictors of neonatal mortality. Pediatrics 1993;91:969–975.

    CAS  PubMed  Google Scholar 

  13. Richardson DK, Corcoran JD, Escobar GJ, Lee SK . SNAP-II and SNAPPE-II: Simplified newborn illness severity and mortality risk scores. J Pediatr 2001;138:92–100.

    Article  CAS  PubMed  Google Scholar 

  14. Clark RH, Kueser TJ, Walker MW . et al. Low-dose nitric oxide therapy for persistent pulmonary hypertension of the newborn. Clinical inhaled nitric oxide research group. N Engl J Med 2000;342:469–474.

    Article  CAS  PubMed  Google Scholar 

  15. Fletcher RH, Fletcher SW, Wagner EH, editors. Clinical Epidemiology, the Essentials. Baltimore, MD: Williams & Wilkins; 1996 p. 62.

    Google Scholar 

  16. Dorfman DD, Alf E . Maximum likelihood estimation of parameters of signal detection theory and determination of confidence intervals-rating method data. J Math Psychol 1969;6:487–496.

    Article  Google Scholar 

  17. Centor RM, Keightley J . ROC Curve Analyzer, Version 6 0 Richmond, VA, 1990.

  18. Lemeshow S, Le Gall JR . Modeling the severity of illness of ICU patients. A systems update. JAMA 1994;272:1049–1055.

    CAS  PubMed  Google Scholar 

  19. Diamond GA . Limited assurances. Am J Cardiol 1989;63:99–100.

    Article  CAS  PubMed  Google Scholar 

  20. Fleiss JL . Statistical Methods for Rates and Proportions. NY, New York: John Wiley & Sons; 1981 p. 1–18.

    Google Scholar 

  21. The neonatal inhaled nitric oxide study group (NINOS). Inhaled nitric oxide in full-term and nearly full-term infants with hypoxic respiratory failure. N Engl J Med 1997;336:597–604.

  22. The collaborative UK ECMO (extracorporeal membrane oxygenation) trial: follow-up to 1 year of age. Pediatrics 1998;101(4):E1.

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Presented in part at the Pediatric Academic Societies and American Academy of Pediatrics Joint Meeting in Boston, MA, May 12–16, 2000.

Supported in part by the General Clinical Research Center (GCRC) Grant from NIH (MO1RR00080) awarded to the MetroHealth Medical Center, CWRU, Cleveland, OH, USA.

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Kumar, D., Super, D., Fajardo, R. et al. Predicting Outcome in Neonatal Hypoxic Respiratory Failure with the Score for Neonatal Acute Physiology (SNAP) and Highest Oxygen Index (OI) in the First 24 Hours of Admission. J Perinatol 24, 376–381 (2004). https://doi.org/10.1038/sj.jp.7211110

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