Why the study?
Are blood pressure measurements obtained by different oscillometric devices (SpaceLabs, Marquette, Dinamap) interchangeable?
Population
25 patients with major depression treated with electroconvulsive therapy (ECT)
Comparison
Blood pressure measurement by SpaceLabs or… vs Simultaneous blood pressure measurement on the…
Design
Cross-sectional
Follow-up
up to 5-7 min after ECT
Key result
Systolic blood pressure differences exceeded 10 mm Hg in 31% and 32% of comparisons for SpaceLabs and Marquette devices versus Dinamap, respectively, indicating they are not interchangeable.
Authors
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BP readings from different oscillometric devices may vary substantially; leaves open whether device standardization is needed in hypertension research.
Observational (n=25)
Are blood pressure measurements obtained by different oscillometric devices (SpaceLabs, Marquette, Dinamap) interchangeable?
Blood pressure measurements obtained by different brands of oscillometric devices show significant variability and should not be considered interchangeable in clinical practice.
Kaufmann et al. (1996) conducted an observational in Major depression treated with electroconvulsive therapy (n=25). SpaceLabs and Marquette oscillometric blood pressure devices vs. Dinamap 1846SX device was evaluated on Standard deviation of the difference and mean difference in blood pressure measurements. Systolic blood pressure differences exceeded 10 mm Hg in 31% and 32% of comparisons for SpaceLabs and Marquette devices versus Dinamap, respectively, indicating they are not interchangeable.