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Cardiac Troponin I in Asphyxiated Neonates

Authors
  • Trevisanuto, Daniele
  • Picco, Giorgio
  • Golin, Rosanna
  • Doglioni, Nicoletta
  • Altinier, Sara
  • Zaninotto, Martina
  • Zanardo, Vincenzo
Type
Published Article
Journal
Neonatology
Publisher
S. Karger AG
Publication Date
Apr 06, 2006
Volume
89
Issue
3
Pages
190–193
Identifiers
DOI: 10.1159/000089795
PMID: 16293961
Source
Karger
Keywords
License
Green
External links

Abstract

Background: Cardiac troponins T (cTnT) and I (cTnI) are well-established markers in detecting myocardial ischemic damage in adults. Perinatal asphyxia is associated with cardiac dysfunction. Objectives: To evaluate serum concentrations of cTnI in asphyxiated neonates and to investigate whether cTnI is correlated with the traditional markers of asphyxia. Methods: Blood samples were collected from 13 asphyxiated neonates (umbilical artery pH <7.18 and either a 1-min Apgar score <4 or a 5-min Apgar score <7) and 39 controls. Data on gestation, birth weight, sex, Apgar scores, mode of delivery, umbilical pH, creatinine, serum activity of aspartate and alanine aminotransferase, and QTc interval were investigated. Results: Median (range) cTnI concentrations were significantly higher in asphyxiated neonates with respect to healthy infants: 0.36 µg/l (0.05–11) versus 0.04 µg/l (0.04–0.06); p < 0.01. In asphyxiated babies, no statistically significant correlations were found between concentrations of cTnI and the other markers of asphyxia. Conclusions: In asphyxiated neonates, cTnI concentrations are higher with respect to healthy infants, suggesting the presence of myocardial damage in this group of high-risk patients. cTnI does not correlate with the traditional markers of asphyxia.

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