Abstract:Objective: To investigate the correlation between umbilical artery blood gas analysis and neonatal hypoxic-ischemic myocardial injury. Methods: A total of 110 neonates admitted to our hospital from January 2023 to June 2025 were selected as the research objects. According to whether they had hypoxic-ischemic myocardial injury, they were divided into hypoxic-ischemic myocardial injury group (n=48) and non-hypoxic-ischemic myocardial injury group (n=62). The clinical data and umbilical artery blood gas analysis levels were compared between the two groups. The relationship between the umbilical artery blood gas analysis index and myocardial enzyme spectrum index was analyzed by Pearson correlation analysis. Results: The levels of hydrogen ion concentration index (pH), base excess (BE), partial pressure of oxygen (PaO2), bicarbonate (HCO3-), calcium ion, and chloride ion in the hypoxic-ischemic myocardial injury group were lower than those in the non-hypoxic-ischemic myocardial injury group (P<0.05). The levels of partial pressure of carbon dioxide (PaCO2), creatine phosphokinase (CK), creatine kinase isoenzyme (CK-MB), lactate dehydrogenase (LDH), α-hydroxybutyrate dehydrogenase (HBDH), and alanine aminotransferase (ALT) were increased (P<0.05). Pearson correlation analysis showed that umbilical artery blood gas analysis was closely associated with the myocardial enzyme spectrum index (P<0.05). Conclusion: The level of umbilical artery blood gas analysis index is closely associated with neonatal hypoxic-ischemic myocardial injury.
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