K. Jagomagi et al., CONTINUOUS NONINVASIVE MEASUREMENT OF MEAN BLOOD-PRESSURE IN FINGERS BY VOLUME-CLAMP AND DIFFERENTIAL OSCILLOMETRIC METHOD, Clinical physiology, 16(5), 1996, pp. 551-560
The present study compares two different methods for non-invasive beat
-to-beat finger arterial blood pressure monitoring. The measurements u
sing the volume clamp method (FINAPRES, Ohmeda, USA) were compared wit
h measurements applying the differential oscillometric method (UT9201
device, University of Tartu). 13 healthy volunteers were studied at re
st, during head-up tilt (HUT) and during deep breathing (DB) with a fi
xed rate of 6 breaths/min. Blood pressure was recorded from adjacent f
ingers of the right hand. 150 pairs of mean blood pressure values in e
ach subject were included for statistical evaluation. No systematic di
fferences between the two methods were found. The difference between v
alues (FINAPRES - UT9201) at rest was -1.1 mmHg (SD 5.5), during HUT 0
.5 mmHg (SD 6.9) and during DB -3.6 mmHg (SD 7.7). The insignificant d
ifferences between the results obtained by the two independent methods
allow us to conclude that both methods give reliable data on finger m
ean arterial pressure.