Prediction of normal QT intervals in children
作者： Tilman Eberle , Gabriele Hessling , Herbert E Ulmer , Konrad Brockmeier
DOI: 10.1016/S0022-0736(98)90303-X
关键词: Regression analysis 、 Sudden death 、 Percentile 、 Statistics 、 Electrocardiography 、 Heart rate 、 Long QT syndrome 、 Medicine 、 Predictive value of tests 、 QT interval
摘要: Measuring QT intervals in individual children is of great importance, particularly view increasing evidence linking long syndrome to subsequent risk for sudden death. Three hundred seventy-three healthy subjects, 185 women and 188 men, aged 5.2 16.5 years, were investigated with a 12-lead-standard electrocardiogram (ECG). Values predicted QTp50 QTp95 (percentiles) calculated by using the cycle length (RR interval [RRI]) measured interval. We used multiple regression analysis test influence possible important variables resulting data generate tables. Additionally, QTp values compared QTc after Bazett's correction. RRI, body height, age, sex turned out most. For clinical use, are presented tabular form RRI age both genders. The tables value predicting upper limits normal children. correction tends underestimate found our when heart rate increases.
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