Recording of short-term finger blood pressure changes induced by an arterial occlusive thigh cuff: comparison between the modified oscillometric and Finapres techniques.
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.
Raamat
R
R
Department of Physiology, University of Tartu, 18 Ulikooli Street, 51014 Tartu, Estonia. raamat@admin.ut.ee
Jagomägi
K
K
Talts
J
J
Toska
K
K
Walløe
L
L
D001794:Blood Pressure / Q000502:physiology*; D005385:Fingers / Q000098:blood supply*; D018737:Hand Strength / Q000502:physiology; D010991:Plethysmography; D012039:Regional Blood Flow / Q000502:physiology; D012815:Signal Processing, Computer-Assisted; D013848:Thigh / Q000098:blood supply*; D014111:Tourniquets; D014655:Vascular Resistance / Q000502:physiology