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[Myocardial damage following neonatal severe asphyxia].
A Bancalari1, C Otero, P Bello
1Hospital Guillermo Grant Benavente, Concepción.
Revista Chilena De Pediatria
|July 1, 1991
Summary
Severe asphyxia in newborns can cause secondary myocardial damage, detected by serial electrocardiograms. This cardiac dysfunction may be missed, presenting as respiratory distress syndrome.
Area of Science:
- Neonatal cardiology
- Perinatal medicine
- Pediatric critical care
Context:
- Severe birth asphyxia poses significant risks to newborns.
- Secondary myocardial damage is a potential complication.
- Clinical presentation can be complex, mimicking other conditions.
Purpose:
- To investigate the incidence and clinical manifestations of secondary myocardial damage in newborns with severe asphyxia.
- To evaluate the utility of electrocardiography (ECG) and cardiac biomarkers in diagnosing myocardial damage.
- To highlight the importance of cardiac monitoring in asphyxiated neonates.
Summary:
- Serial ECGs identified myocardial damage in 18.7% of term newborns with severe asphyxia.
- Damage included subendocardial ischemia and left ventricular wall necrosis.
- Creatine-phosphokinase and its MB isoenzyme were not useful for diagnosis.
- Affected neonates developed respiratory distress syndrome; one mortality occurred with histopathological evidence of myocardial hemorrhage.
Impact:
- Serial ECGs are crucial for detecting occult myocardial damage in asphyxiated newborns.
- Cardiac dysfunction can be present despite a primary diagnosis of respiratory distress syndrome.
- Early identification of myocardial damage may guide clinical management and improve outcomes.