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      Effect of Body Characteristics on the Variables of Signal-Averaged Electrocardiogram in Healthy Teenage Subjects

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          Abstract

          Ventricular late potentials are obtained by signal-averaged surface electrocardiography. Late potentials have been reported to be affected by body characteristics or left ventricular mass. To evaluate late potentials in relation to body characteristics, 52 healthy Japanese young volunteers (21 girls, 31 boys) aged 15-16 years were studied. QRS duration in men was significantly longer than in women. There were no significant differences in low-amplitude signal and root mean square voltage between women and men. When relations between signal-averaged electrocardiographic parameters and body characteristics were examined, QRS duration had positive linear correlations with weight and body mass index. The slope of QRS duration and weight relation, and QRS duration and body mass index relation was significantly steeper in men compared to those in women; a prolongation of QRS duration in men compared to women as weight and body mass index increased. Our results indicated that QRS duration in teenage healthy subjects should be used with caution because it is affected by gender.

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          Author and article information

          Journal
          CRD
          Cardiology
          10.1159/issn.0008-6312
          Cardiology
          S. Karger AG
          0008-6312
          1421-9751
          1993
          1993
          14 November 2008
          : 83
          : 1-2
          : 71-75
          Affiliations
          aSecond Department of Internal Medicine, Kansai Medical University; bDepartment of Internal Medicine, Senriyamada Medical Association, Osaka, Japan
          Article
          175950 Cardiology 1993;83:71–75
          10.1159/000175950
          8261490
          © 1993 S. Karger AG, Basel

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          Page count
          Pages: 5
          Categories
          Arrhythmias, Electrophysiology and Electrocardiography

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