Why the study?
Does the modified oscillometric method (UT9201) agree with the Finapres technique in tracking short-term finger blood pressure changes in healthy volunteers?
Does the modified oscillometric method (UT9201) agree with the Finapres technique in tracking short-term finger blood pressure changes in healthy volunteers?
The UT9201 modified oscillometric monitor tracks short-term MAP rises similarly to the established Finapres technique, though with slight differences during MAP drops.
UT9201 tracks MAP rises similarly to Finapres but differs on drops; hypothesis-generating for continuous monitoring validation.
Blood pressure recordings obtained by the volume clamp method (Finapres monitor, Ohmeda, USA) were compared with measurements by using a novel modification of the oscillometric method (UT9201 beat-to-beat monitor, University of Tartu, Estonia). Step changes in total peripheral resistance were introduced in 11 healthy volunteers by rapid inflation to the suprasystolic pressure of bilateral thigh cuffs during a rhythmical exercise with the quadriceps muscles and simultaneously performed handgrip compression. The provoked short-term changes in mean arterial pressure (MAP) were similarly tracked by both devices. The agreement between the methods was better for MAP rise than drop. The group-averaged difference UT9201 minus Finapres did not exceed 1.2 mmHg (NS, p = 0.46) after cuff successive inflation but yielded 3.8 mmHg (significant, p < 0.05) after cuff successive deflation.
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Raamat et al. (2001) studied this question.
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