Abstract: Objective：To investigate the status quo and influencing factors of abnormal changes of T-wave in electrocardiogram of children in the department of cardiology.Methods：A retrospective study was used.A total of 3 571 children were chosen as the study subjects,who were admitted to the Department of Cardiology of Hunan Children′s Hospital from January 2019 to December 2023,and they were divided into abnormal T-wave group (n=749) and control group (n=2 822) according to whether they had abnormal T-wave or not.The types of T wave abnormalities,age distribution,gender ratio and some other indicators were analyzed,and correlation analysis was carried out by statistical methods to explore the possible influencing factors.Results：A total of 3 571 children in the Department of Cardiology were included,including 749 (20.97%) with abnormal T-wave.T-wave abnormalities occurred mainly in 350 cases of pericarditis (46.73%),followed by 157 cases of myocarditis/cardiomyopathy (20.96%).There was no statistically significant difference in gender or age between the two groups(P>0.05).The proportion of overweight in the abnormal T-wave group was higher,and there was statistically significant difference (P<0.05).The proportion of respiratory system diseases,digestive system diseases,neurological diseases and infectious diseases in abnormal T-wave group was higher,the difference being statistically significant (P<0.05).Logistic regression analysis showed that body mass (overweight),combination with respiratory diseases/digestive diseases/neurological diseases,pericarditis,and myocarditis/cardiomyopathy were independent risk factors for abnormal changes of T-wave in electrocardiogram of children in the Department of Cardiology (P<0.05).Conclusion：Abnormal changes of T wave in electrocardiogram are more common in children in the cardiology department,and the children with pericarditis and myocarditis/cardiomyopathy are more prone to such abnormalities.Meanwhile,attention should also be paid to the children with respiratory diseases,digestive diseases,and neurological diseases,for the risk of abnormal changes of T-wave in their electrocardiograms is also higher.

Key words: Abnormal T-wave in electrocardiogram, Department of cardiology, Influencing factors, Child