title: A microcomputer-based, R-wave triggered system for hemodynamic measurements in the forearm.
abstract: 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.
authors.affiliation: Department of Nephrology, University Hospital, Leiden, The Netherlands.
authors.forename: P C
authors.initials: PC
authors.lastname: Chang
authors.forename: R
authors.initials: R
authors.lastname: Verlinde
authors.forename: T
authors.initials: T
authors.lastname: Bruning
authors.forename: P
authors.initials: P
authors.lastname: van Brummelen
mesh_terms: 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