A proposed method for the calculation of age-dependent QRS duration z-scores

被引：11

作者：

Chubb, Henry ^{[1
,2
]}

Ceresnak, Scott R. ^{[1
]}

Motonaga, Kara S. ^{[1
]}

Dubin, Anne M. ^{[1
]}

机构：

[1] Stanford Univ, Dept Pediat, Div Pediat Cardiol, Palo Alto, CA 94304 USA

[2] Stanford Univ, Dept Cardiothorac Surg, Sch Med, 780 Welch Rd, Stanford, CA 94305 USA

来源：

JOURNAL OF ELECTROCARDIOLOGY | 2020年 / 58卷

关键词：

Z-score; Pediatric cardiology; Dyssynchrony; Electrocardiogram; Cardiac resynchronization therapy; ELECTROCARDIOGRAM;

D O I：

10.1016/j.jelectrocard.2019.12.004

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Background: There are currently no published algorithms for calculation of age -dependent QRS duration z-scores. The absence of a standardized measure has limited researchers' abilities to compare ECG measurements of electrical synchrony between subjects of different ages or longitudinally over time. Methods: Four existing studies of normal ECG measurements (total 19,062 subjects) were used to estimate age and sex-dependent means and standard deviations. Results: Weighted means and standard deviations were best estimated by cubic functions to create z-score algorithms. Conclusion: Nomograms and algorithms for QRS duration z-scores may be estimated to compare ECG findings in both children and adults. (C) 2019 Elsevier Inc. All rights reserved.

引用

页码：132 / 134

页数：3

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