Abstract: Abstract: Objective To investigate the distinguish of dome and dart T waves between children suffered from congenital heart disease and healthy children. Methods Data of 114 children with ECGs of dome and dart T waves were retrospectively analyzed. According to echocardiography these children were divided into two groups, congenital heart disease group (n=71) and healthy group (n=43). The amplitude and the waveforms of dart T wave were measured and compared between two groups. Results In contrast to healthy group, congenital heart disease group showed a significantly higher dart T wave. The proportion of amplitude of dart T wave was higher than dome T wave in congenital heart disease group than that of healthy group (52.11% vs. 18.60%). There were no significant differences in the height and morphology of dart T wave between different kinds of congenital heart diseases (P＞0.05). Conclusion Dome and dart T waves can be observed in ECGs of children with congenital heart disease and healthy children. The dart T wave is prominent in congenital heart disease, and the dart wave is higher than the dome wave.

Key words: electrocardiography, congenital heart disease, dome and dart T wave