NONINVASIVE CONTINUOUS FINGER BLOOD-PRESSURE MEASUREMENT DURING ORTHOSTATIC STRESS COMPARED TO INTRAARTERIAL PRESSURE
NONINVASIVE CONTINUOUS FINGER BLOOD-PRESSURE MEASUREMENT DURING ORTHOSTATIC STRESS COMPARED TO INTRAARTERIAL PRESSURE
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DOI:
10.1093/cvr/24.3.214
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发表时间:
1990-03-01
影响因子:
10.8
通讯作者:
WIELING, W
中科院分区:
文献类型:
--
作者:
IMHOLZ, BPM;SETTELS, JJ;WIELING, W
Study objective - The aim of the study was to evaluate whether invasive blood pressure responses to orthostatic stress can be replaced by non-invasive continuous finger blood pressure responses. Design - Intrabrachial and Finapres blood pressure were simultaneously measured during passive head up tilt and during active standing from the supine or sitting position in healthy volunteers. Subjects - Subjects (n = 11) were healthy males aged 22-40 years, mean age 30 years. Measurements and main results - Beat to beat values of systolic, diastolic, and mean arterial pressures were calculated for both methods of measurement and the differences compared during a 30 s control period before, and during the first 120 s after, the change of posture. In the control period the difference between finger pressure and intra-arterial pressure was +2 (SD11) mm Hg for systolic, -4(8) mm Hg for mean, and -3(7) mm Hg for diastolic pressure. Compared to these control differences, the average finger minus intra-arterial pressure differences for mean and diastolic pressures during the three orthostatic manoeuvres were always within the range -6 to +6 mm Hg. The average systolic deviations were larger, ranging from -10 to +11 mm Hg. Despite these differences the characteristic changes in intra-arterial pressure during the initial phase (first 30 s after change of posture), as well as during the early steady state phase (1-2 min after the change of posture) were well reflected by finger pressure measurements in all subjects. Conclusions - For the assessment of the continuous blood pressure responses to orthostatic stress similar information can be obtained with non-invasive Finapres blood pressure recordings as with invasive recordings.