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[Elastase-alpha 1-antiprotease in neonatal sepsis]
M Iriondo Sanz1, L Alvarez Domínguez, A Riverola de Veciana
1Sección de Neonatología, Hospital San Joant de Déu, Barcelona.
Anales Espanoles De Pediatria
|September 1, 1993
Summary
Elevated elastase-alpha 1-proteinase inhibitor complex (E-alpha 1-PI) levels in newborn blood indicate infection. This biomarker shows high negative predictive value for diagnosing neonatal infections.
Area of Science:
- Biochemistry
- Neonatal Medicine
- Clinical Diagnostics
Background:
- Neonatal infections pose significant health risks.
- Accurate and timely diagnosis is crucial for effective treatment.
- Biomarkers for early detection of neonatal infections are needed.
Purpose of the Study:
- To evaluate the diagnostic utility of elastase-alpha 1-proteinase inhibitor complex (E-alpha 1-PI) in neonatal infections.
- To determine the sensitivity, specificity, and predictive values of E-alpha 1-PI for neonatal infection.
Main Methods:
- Blood samples were collected from 516 newborn infants.
- Infants were categorized into control, non-infectious, and infectious groups.
- Plasma levels of E-alpha 1-PI complex were measured and compared across groups.
Main Results:
- Significant differences in E-alpha 1-PI complex levels were observed between the three groups (p < 0.001).
- Plasma E-alpha 1-PI complex levels were highest in the infectious group.
- The biomarker demonstrated a sensitivity of 75% and specificity of 81.9% for neonatal infection diagnosis.
Conclusions:
- E-alpha 1-PI complex is a potential biomarker for neonatal infection.
- The high negative predictive value (96.8%) suggests its utility in ruling out infection.
- Further research may validate E-alpha 1-PI as a routine diagnostic tool in neonates.