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Year : 2021  |  Volume : 10  |  Issue : 3  |  Page : 187-191

Relationships between troponin I and hypoxic–ischemic encephalopathy among newborn babies

1 Children Specialist Hospital Ilorin, Nigeria
2 Department of Paediatrics and Child Health, University of Ilorin Teaching Hospital; Department of Paediatrics and Child Health, University of Ilorin, Nigeria
3 Department of Paediatrics, Federal Medical Centre, Katsina, Nigeria
4 Dalhatu Araf Specialist Hospital, Lafia Nasarawa State, Nigeria
5 Department of Paediatrics and Child Health, University of Ilorin Teaching Hospital, Nigeria

Correspondence Address:
Amudalat Issa
Children Specialist Hospital, Ilorin
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jcn.jcn_179_20

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Background: A proper evaluation of cardiovascular status, with a view to ensuring early diagnosis of cardiac dysfunction and prompt intervention where necessary, is a recognized approach in the management of asphyxiated neonates. Hence, we determined the levels of a cardiac biomarker (troponin I), its relationship with disease severity, and mortality in asphyxiated neonates with hypoxic–ischemic encephalopathy (HIE). Methods: This was a descriptive study that involved 85 asphyxiated, term appropriate-for-gestational age newborn babies with HIE (subjects) and 85 healthy controls within the first 72 h of life. Asphyxiated neonates were classified into HIE stages using Sarnat and Sarnat staging. Blood samples were collected between 24 and 72 h of life to determine the level of troponin I using enzyme-linked immunosorbent assay. The asphyxiated babies were followed up till discharge or death. Results: The median interquartile range level of troponin I in the subjects was higher compared with the controls, 1.26 (0.97–3.16) ng/ml versus 0.79 (0.79–1.42) ng/ml, P < 0. 001. The levels of troponin I in HIE I, HIE II, and HIE III were 1.26 (1.00–2.37) ng/ml, 1.11 (0.86–2.96) ng/ml, and 3.58 (1.34–5.58) ng/ml, respectively. Nonsurvivors had a higher cardiac troponin I (4.00 [2.30–6.34] ng/ml) compared with survivors (1.21 [0.95–2.37] ng/ml), P = 0.015. Conclusion: Cardiac troponin I was significantly higher in asphyxiated subjects compared with healthy controls. Elevated troponin I was associated with higher mortality. Troponin I levels in the first 72 h can help as a prognostic indicator of HIE in term babies.

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