Key result
Oscillometric devices overestimate SBP by ~4 mmHg vs manual sphygmomanometry in acute ischemic stroke.
Why the study?
The accuracy and agreement of the indirect oscillometric method compared to the direct arterial puncture method for blood pressure measurement in anesthetized dogs was uncertain.
Observational (n=95)
Single-blind
Yes
Answers are grounded in this paper and cite their sources.
May warrant caution using oscillometric BP devices in acute ischemic stroke; leaves open need for device validation studies.
The indirect oscillometric method of blood pressure measurement was compared to the direct arterial puncture method in 15 anesthetized dogs, divided into three weight groups, undergoing a variety of surgical procedures. The objectives of this study were to determine the accuracy of the indirect oscillometric method at a single point in time and when sequential values were averaged. Additionally, the ability to detect systemic hypotension (i.e., mean systemic arterial pressure less than 60 mmHg) was evaluated. The method had the highest correlation coefficient (r of 0.8) when five sequential values were averaged and compared, and it appeared to be sensitive (100%) and specific (91%) for detecting hypotension.
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Meurs et al. (1996) conducted an observational in Acute Ischemic Stroke (n=95). Noninvasive oscillometric blood pressure (NIBP) vs. Manual sphygmomanometry was evaluated on Agreement between NIBP and manual systolic blood pressure (mean difference) (MD -3.75 mmHg, p=<0.001).
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