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KMID : 1011920210220010003
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International Journal of Arrhythmia
2021 Volume.22 No. 1 p.3 ~ p.3
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Ventricular late potentials measured by signal-averaged electrocardiogram in young professional soccer players
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Lee Jung-Myung
Chung Hye-Moon
Kim Hyung-Oh
Woo Jong-Shin
Kim Soo-Joong
Kim Weon
Kim Woo-Shik
Kim Jin-Bae
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Abstract
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Background and objectives: Athlete’s heart is characterized by structural cardiac changes, including enlargement and hypertrophy. However, exercise-induced cardiac electrical remodeling is not well known in Asian athletes. We sought to evaluate the association between vigorous exercise and the development of abnormal late potential on signal-averaged electrocardiogram (SAECG).
Method: We analyzed 48 Korean professional soccer players and 71 healthy sedentary controls who underwent SAECG and transthoracic echocardiography at Kyung Hee University Hospital. An SAECG was considered abnormal (positive for ventricular late potential) when any one of the three following criteria was met: filtered QRS duration?>?114 ms, root-mean-square voltage in the terminal 40 ms?
Results: Fragmented QRS was more commonly found in athletes (1.4% vs. 10.4%). Athletes demonstrated significantly higher proportion of filtered QRS duration?>?114 ms (7.0% vs. 22.9%, P?=?0.013) and lower terminal QRS root-mean-square voltage?
Conclusion: Abnormal SAECG findings were significantly more common in athletes than in controls. Further study is needed to determine the clinical impact of these abnormal SAECGs in athletes and cardiac outcomes in the long term.
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KEYWORD
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Electrocardiography, Athlete's heart syndrome, Signal-averaged electrocardiography
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