Comparison of noninvasive oscillometric and intra-arterial blood pressure measurements in hyperacute stroke

Abstract

Noninvasive automatic oscillometric BP measurements underestimate direct SBP recordings and overestimate direct DBP readings in acute stroke. The magnitude of the discrepancy between intra-arterial and oscillometric SBP recordings is even more prominent in patients with critically elevated SBP levels.

Estimation of central systolic blood pressure using an oscillometric blood pressure monitor

“…14,24 Large variations between the indirect and direct blood pressure measurements have been well recognized. [25][26][27][28] A previous study assessing the accuracy of indirect blood pressure measurements at steady state clearly showed that the indirect methods underestimated SBP and overestimated DBP compared with the direct method, with s.d. of 10.5/7.6 mm Hg (SBP/DBP), 9.7/8.9 mm Hg and 8.1/6.5 mm Hg with the oscillometric method, microphone method and the auscultatory method, respectively.…”

Assessment of systolic aortic pressure and its association to all cause mortality critically depends on waveform calibration

“…Amplification as well as association to outcome changed significantly as a consequence of different calibrations. The change in amplification is explained by cuff specific under estimation of brachial systolic pressure by traditional pressure measurement methods, which is well known and has been reported over decades for both auscultatory and oscillometric measurements [20][21][22][23][24][25].…”

Axillary arterial catheter use associated with hand ischemia in a multi-trauma patient: case report and literature review

“…Oscillometric devices (traditional upper extremity external BP cuffs) underestimate systolic, and overestimate diastolic, arterial pressure in many patients [19]. Arterial digital photoplethysmography and photoplethysmographic pulse oximetry need to be developed further before they are used for critical hemodynamic monitoring [20].…”