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Blood Pressure Measurement Error in Children: Lessons in Measurement Reliability
Esther J Varney1, Ashley M Van Drunen1, Emily F Moore1
1Seattle Children's Hospital, Seattle, WA.
Background And Purpose:
Blood pressure measurement represents the pressure exerted during heart ejection and filling. There are several ways to measure blood pressure and a valid measure is essential. The purpose of this study was to evaluate the approach to noninvasive blood pressure measurement in children.
Methods:
Blood pressure measurements were taken using the automatic Phillips MP30 monitor and compared against Welch Allyn blood pressure cuffs with Medline manual sphygmomanometers.
Results:
A total of 492 measurements were taken on 82 subjects, and they demonstrated comparability between automatic and manual devices.
Conclusions:
Although our study indicated acceptable agreement between automatic and manual blood pressure measurement, it also revealed measurement error remains a concern, with sample size, study protocol, training, and environment all playing a role.
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