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Article

Association between obesity and ECG variables in children and adolescents: A cross‑sectional study

  • Authors:
    • Guo‑Zhe Sun
    • Yang Li
    • Xing‑Hu Zhou
    • Xiao‑Fan Guo
    • Xin‑Gang Zhang
    • Li‑Qiang Zheng
    • Yuan Li
    • Yun‑Di Jiao
    • Ying‑Xian Sun
  • View Affiliations / Copyright

    Affiliations: Department of Cardiovascular Medicine, The First Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China, Library, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
  • Pages: 1455-1462
    |
    Published online on: October 9, 2013
       https://doi.org/10.3892/etm.2013.1337
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Abstract

Obesity exhibits a wide variety of electrocardiogram (ECG) abnormalities in adults, which often lead to cardiovascular events. However, there is currently no evidence of an association between obesity and ECG variables in children and adolescents. The present study aimed to explore the associations between obesity and ECG intervals and axes in children and adolescents. A cross‑sectional observational study of 5,556 students aged 5‑18 years was performed. Anthropometric data, blood pressure and standard 12‑lead ECGs were collected for each participant. ECG variables were measured manually based on the temporal alignment of simultaneous 12 leads using a CV200 ECG Work Station. Overweight and obese groups demonstrated significantly longer PR intervals, wider QRS durations and leftward shifts of frontal P‑wave, QRS and T‑wave axes, while the obese group also demonstrated significantly higher heart rates, compared with normal weight groups within normotensive or hypertensive subjects (P<0.05). Abdominal obesity was also associated with longer PR intervals, wider QRS duration and a leftward shift of frontal ECG axes compared with normal waist circumference (WC) within normotensive or hypertensive subjects (P<0.05). Gender was a possible factor affecting the ECG variables. Furthermore, the ECG variables, including PR interval, QRS duration and frontal P‑wave, QRS and T‑wave axes, were significantly linearly correlated with body mass index, WC and waist‑to‑height ratio adjusted for age, gender, ethnicity and blood pressure. However, there was no significant association between obesity and the corrected QT interval (P>0.05). The results of the current study indicate that in children and adolescents, general and abdominal obesity is associated with longer PR intervals, wider QRS duration and a leftward shift of frontal P‑wave, QRS and T‑wave axes, independent of age, gender, ethnicity and blood pressure.
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Copy and paste a formatted citation
Spandidos Publications style
Sun GZ, Li Y, Zhou XH, Guo XF, Zhang XG, Zheng LQ, Li Y, Jiao YD and Sun YX: Association between obesity and ECG variables in children and adolescents: A cross‑sectional study. Exp Ther Med 6: 1455-1462, 2013.
APA
Sun, G., Li, Y., Zhou, X., Guo, X., Zhang, X., Zheng, L. ... Sun, Y. (2013). Association between obesity and ECG variables in children and adolescents: A cross‑sectional study. Experimental and Therapeutic Medicine, 6, 1455-1462. https://doi.org/10.3892/etm.2013.1337
MLA
Sun, G., Li, Y., Zhou, X., Guo, X., Zhang, X., Zheng, L., Li, Y., Jiao, Y., Sun, Y."Association between obesity and ECG variables in children and adolescents: A cross‑sectional study". Experimental and Therapeutic Medicine 6.6 (2013): 1455-1462.
Chicago
Sun, G., Li, Y., Zhou, X., Guo, X., Zhang, X., Zheng, L., Li, Y., Jiao, Y., Sun, Y."Association between obesity and ECG variables in children and adolescents: A cross‑sectional study". Experimental and Therapeutic Medicine 6, no. 6 (2013): 1455-1462. https://doi.org/10.3892/etm.2013.1337
Copy and paste a formatted citation
x
Spandidos Publications style
Sun GZ, Li Y, Zhou XH, Guo XF, Zhang XG, Zheng LQ, Li Y, Jiao YD and Sun YX: Association between obesity and ECG variables in children and adolescents: A cross‑sectional study. Exp Ther Med 6: 1455-1462, 2013.
APA
Sun, G., Li, Y., Zhou, X., Guo, X., Zhang, X., Zheng, L. ... Sun, Y. (2013). Association between obesity and ECG variables in children and adolescents: A cross‑sectional study. Experimental and Therapeutic Medicine, 6, 1455-1462. https://doi.org/10.3892/etm.2013.1337
MLA
Sun, G., Li, Y., Zhou, X., Guo, X., Zhang, X., Zheng, L., Li, Y., Jiao, Y., Sun, Y."Association between obesity and ECG variables in children and adolescents: A cross‑sectional study". Experimental and Therapeutic Medicine 6.6 (2013): 1455-1462.
Chicago
Sun, G., Li, Y., Zhou, X., Guo, X., Zhang, X., Zheng, L., Li, Y., Jiao, Y., Sun, Y."Association between obesity and ECG variables in children and adolescents: A cross‑sectional study". Experimental and Therapeutic Medicine 6, no. 6 (2013): 1455-1462. https://doi.org/10.3892/etm.2013.1337
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