The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2009
Assessment of myocardial dysfunction in neonates with hypoxic-ischemic encephalopathy: is it a significant predictor of mortality?
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Kanik Esra, Ozer Esra Arun, Bakiler Ali Rahmi, Aydinlioglu Halil, Dorak Coskun, Dogrusoz Buket, Kanik Ali, Yaprak Isin
Аннотация
OBJECTIVES: Hypoxic-ischemic cerebral injury due to perinatal asphyxia is an important cause of neonatal mortality and morbidity. To predict who will survive or die due to this disorder still remains obscure. The aim of this study is to evaluate the predictive value of myocardial involvement in the assessment of mortality for the neonates with hypoxic-ischemic encephalopathy (HIE).
PATIENTS AND METHODS: The study included 34 term newborns fulfilling the diagnostic criteria for HIE and staged according to Sarnat and Sarnat classification. To assess the myocardial involvement, electrocardiogram (ECG) and echocardiogram (Echo) were performed in the first 24-48 h of life. In addition, serum Troponin I and creatine kinase-myocardial band (CK-MB) were measured at delivery and postnatal day 3.
RESULTS: Of the 34 cases, 19 (55.9%) were stage in 1, 9 were in (26.4%) stage 2 and 6 (17.6%) were in stage 3 HIE. Nine (26.4%) patients died of the disease. Thirteen patients (38.2%) showed ECG findings related to perinatal asphyxia. Only one patient had mild Echo changes. Higher Troponin I level was a significant predictor of mortality, whereas CK-MB did not show any significant predicting value. Troponin I test showed 33% sensitivity and 80% specificity in predicting mortality. In addition, the sensitivity and specificity of ECG as a predictor of mortality were 77 and 76%, respectively.
CONCLUSION: This study highlights the significance of monitoring cardiac functions in newborns with HIE. ECG changes and serum Troponin I level at 72 h after birth are likely to have significant predictive value in the assessment of mortality in HIE. Further studies will provide additional data for the long-term prognostic value of cardiac functions in this disorder.
PATIENTS AND METHODS: The study included 34 term newborns fulfilling the diagnostic criteria for HIE and staged according to Sarnat and Sarnat classification. To assess the myocardial involvement, electrocardiogram (ECG) and echocardiogram (Echo) were performed in the first 24-48 h of life. In addition, serum Troponin I and creatine kinase-myocardial band (CK-MB) were measured at delivery and postnatal day 3.
RESULTS: Of the 34 cases, 19 (55.9%) were stage in 1, 9 were in (26.4%) stage 2 and 6 (17.6%) were in stage 3 HIE. Nine (26.4%) patients died of the disease. Thirteen patients (38.2%) showed ECG findings related to perinatal asphyxia. Only one patient had mild Echo changes. Higher Troponin I level was a significant predictor of mortality, whereas CK-MB did not show any significant predicting value. Troponin I test showed 33% sensitivity and 80% specificity in predicting mortality. In addition, the sensitivity and specificity of ECG as a predictor of mortality were 77 and 76%, respectively.
CONCLUSION: This study highlights the significance of monitoring cardiac functions in newborns with HIE. ECG changes and serum Troponin I level at 72 h after birth are likely to have significant predictive value in the assessment of mortality in HIE. Further studies will provide additional data for the long-term prognostic value of cardiac functions in this disorder.