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标题：Baseline values from the electrocardiograms of children and adolescents with ADHD
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作者：Suyash Prasad ; Amanda J Furr ; Shuyu Zhang 等
期刊名称：Child and Adolescent Psychiatry and Mental Health
印刷版ISSN：1753-2000
电子版ISSN：1753-2000
出版年度：2007
卷号：1
期号：1
页码：11
DOI：10.1186/1753-2000-1-11
语种：English
出版社：BioMed Central
摘要：An important issue in pediatric pharmacology is the determination of whether medications affect cardiac rhythm parameters, in particular the QT interval, which is a surrogate marker for the risk of adverse cardiac events and sudden death. To evaluate changes while on medication, it is useful to have a comparison of age appropriate values while off medication. The present meta-analysis provides baseline ECG values (i.e., off medication) from approximately 6000 children and adolescents with attention-deficit/hyperactivity disorder (ADHD). Subjects were aged 6–18 years and participated in global trials within the atomoxetine registration program. Patients were administered a 12-lead ECG at study screening and cardiac rhythm parameters were recorded. Baseline QT intervals were corrected for heart rate using 3 different methods: Bazett's, Fridericia's, and a population data-derived formula. ECG data were obtained from 5289 North American and 641 non-North American children and adolescents. Means and percentiles are presented for each ECG measure and QTc interval based on pubertal status as defined by age and sex. Prior treatment history with stimulants and racial origin (Caucasian) were each associated with significantly longer mean QTc values. Baseline ECG and QTc data from almost 6000 children and adolescents presenting with ADHD are provided to contribute to the knowledge base regarding mean values for pediatric cardiac parameters. Consistent with other studies of QT interval in children and adolescents, Bazett correction formula appears to overestimate the prevalence of prolonged QTc in the pediatric population.
关键词：Atomoxetine ; Pubertal Status ; Racial Origin ; Pediatric Pharmacology ; Prior Treatment History