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/I (0.05-11 ) versus 0.04 μg/I (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. Copyright © 2006 S. Karger AG.

Cardiac troponin I in asphyxiated neonates

Trevisanuto D.;Doglioni N.;Zaninotto M.;Zanardo V.
2006

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/I (0.05-11 ) versus 0.04 μg/I (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. Copyright © 2006 S. Karger AG.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11577/3396735
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