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IP International Journal of Medical Paediatrics and Oncology


Utility of creatine kinase MB in the diagnosis of myocardial dysfunction in asphyxiated term newborns – Prospective study


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Research Article

Author Details : Yelamali BC, Milind Ramakant Kulkarni*

Volume : 5, Issue : 1, Year : 2019

Article Page : 10-16


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Abstract

Introduction: Perinatal Asphyxia is a multi-system disorder and its effects are not limited to central Nervous System. Cardiac impairment occurs in about 24-60% of neonates with asphyxia. Myocardial dysfunction secondary to severe birth asphyxia will lead to loss of cerebral auto-regulation with subsequent severe encephalopathy. This study was done to evaluate the usefulness of Creatine Kinase MB (CKMB) in diagnosing myocardial injury in perinatal asphyxia well as prognostic indicator of perinatal asphyxia.
Materials and Methods: A Hospital based Prospective Analytical Study performed in 100 asphyxiated term neonates. CKMB was evaluated for sensitivity and specificity in comparison with clinical diagnosis of myocardial injury and were correlated with results from ECG, ECHO, duration of inotrope, severity of shock and outcome.

Results: In our study among 100 term asphyxiated neonates, 79% neonates had clinical evidence of myocardial injury. We had large number of neonates (41%) with HIE grade 3 while 35% were stage 1 HIE and 24% were stage 2 HIE. The ROC curve for cardiac dysfunction showed that the value of CKMB for prediction of cardiac dysfunction was 42 IU/L (sensitivity of 79.5% and specificity of 93.3%). The cut off CKMB value for prediction of mortality in our study is 91.1 IU/L with sensitivity of 90.0% and specificity of 83.8% Also the value of CKMB had strong statistical significance with severity of HIE (p<0>
Conclusion: CKMB is valuable tool in resource limited settings for early detection of myocardial injury due to perinatal asphyxia. The early detection and prompt treatment of condition will help in improving prognosis of these asphyxiated newborns.

Keywords: Perinatal asphyxia, Creatine kinase – MB, Myocardial Injury.

Doi : 10.18231/j.ijmpo.2019.003

How to cite : Yelamali Bc, Kulkarni M R, Utility of creatine kinase MB in the diagnosis of myocardial dysfunction in asphyxiated term newborns – Prospective study. IP Int J Med Paediatr Oncol 2019;5(1):10-16

Copyright © 2019 by author(s) and IP Int J Med Paediatr Oncol. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0) (creativecommons.org)