单纯性肥胖儿童体脂分布与心电图变化的相关性

目的:探讨单纯性肥胖对儿童心电图影响的一般规律,为预防控制单纯性肥胖提供客观依据。方法:选择10～11岁单纯性肥胖的小学生60名(男、女各30名),进行身体成分和心电图检测分析。结果:肥胖学生心电图的QTd(42.1±10.6)ms与QTcd(50.3±11.7)ms与正常学生QTd(36.8±9.6)ms、QTcd(42.4±10.8)ms比较,明显延长;体重指数(BMI)、腰/臀围比(WHR)以及脂肪组织指数(FMI)与QTd和QTcd之间存在明显的相关性。结论:单纯性肥胖对小学生心脏功能产生了一定程度的影响,控制学龄期儿童肥胖是预防心血管疾病的重要措施。

Correlation between body fat distribution and changes of electrocardiogram in children with simple obesity

Objective: To explore the general rule of effect of simple obesity on electrocardiogram in children,and provide a objective basis for prevention and control of simple obesity. Methods: 60 students ( 30 boys and 30 girls) with simple obesity aged 10 ～ 11 years old were selected for body composition analysis and electrocardiogram test. Results: The QT dispersion ( QTd) and QT dispersion corrected ( QTcd) in obese students were ( 42. 1 ±10. 6) ms and ( 50. 3 ±11. 7) ms,respectively,which were longer than those in healthy students with normal body weight [( 36. 8 ± 9. 6) ms and ( 42. 4 ± 10. 8) ms]; there was a correlation between body mass index ( BMI) ,waist/hip ratio ( WHR) ,FMI and QTd,QTcd. Conclusion: Simple obesity affects cardiac function of students to some extent,and controlling obesity of school age children is an important method to prevent cardiovascular diseases.