A microcomputer-based, R-wave triggered system for hemodynamic measurements in the forearm.
A microcomputer (with 8088 or 80286 processor)-based, R-wave triggered system for on-line, semi-continuous measurement of blood flow of one or two limbs, simultaneous with heart rate and eventually intra-arterial blood pressure, is described. The minimal interval between measurements is approximately 4 s, allowing the accurate measurement of maximal flow after ischemia. When compared to hand-operated plethysmography, the use of this system improves the precision of the measurements, minimizes perturbations of the limb circulation and eliminates the possible bias of analysis by hand.
Chang
P C
PC
Department of Nephrology, University Hospital, Leiden, The Netherlands.
Verlinde
R
R
Bruning
T
T
van Brummelen
P
P
D000328:Adult; D001794:Blood Pressure; D003201:Computers; D004562:Electrocardiography; D005542:Forearm / Q000098:blood supply*; D006339:Heart Rate; D006439:Hemodynamics; D006801:Humans; D007511:Ischemia / Q000503:physiopathology; D008297:Male; D008838:Microcomputers; D008875:Middle Aged; D010991:Plethysmography / Q000295:instrumentation*; D012039:Regional Blood Flow; D012044:Regression Analysis; D012984:Software