Key result
Automated Omron BP measurement lacks consistency vs sphygmomanometer, underestimating low and overestimating high systolic BP.
Why the study?
Does the Omron HEM 711 automated BP monitor provide consistent measurements compared to a sphygmomanometer in healthy children aged 4-8 years?
Cross-Sectional (n=764)
Does the Omron HEM 711 automated BP monitor provide consistent measurements compared to a sphygmomanometer in healthy children aged 4-8 years?
Automated blood pressure measurements using the Omron HEM 711 show wide variation compared to sphygmomanometer readings in children, suggesting they cannot be reliably compared to normative data obtained via sphygmomanometer.
Automated BP devices warrant caution in young children; leaves open need for pediatric-specific validation against sphygmomanometer standards.
OBJECTIVE: To collect normal data on blood pressure (BP) in healthy children aged 4-8 and to compare measurements of BP made in the same subjects with a sphygmomanometer and a portable automated oscillometric BP monitor (Omron HEM 711 with child cuff). METHODS: Cross-sectional observational study of 764 children. BP measurements were made at school, using both a sphygmomanometer and an Omron HEM 711. Immediately after the BP measurement children were asked to state which device they preferred (if any). RESULTS: Children had no preference for whether the sphygmomanometer or the Omron was used. Bland-Altman plots showed a lack of consistency between the two methods of BP measurement. With systolic BP there was a trend for the Omron to underestimate when low and overestimate when high. CONCLUSIONS: Children were equally distributed in their preference for BP device. There was a wide variation between the two methods of BP measurement, which suggests that comparison of automated BP measurements with normative data obtained by sphygmomanometer is not valid.
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Midgley et al. (2009) conducted a cross-sectional in Healthy children (n=764). Omron HEM 711 vs. Sphygmomanometer was evaluated on Consistency between the two methods of BP measurement. Automated blood pressure measurement using the Omron HEM 711 showed a lack of consistency compared to a sphygmomanometer, underestimating low and overestimating high systolic BP.
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