Title :
Hemodynamic monitoring by continuous analysis of pulse oximeter plethysmographic waveform in newborn infants
Author :
Storme, L. ; Logier, R. ; Riou, Y ; Jaffré, M.O. ; Lequien, P.
Author_Institution :
Dept. of Neonatal Med., Hopital Jeanne de Flandre, Lille, France
fDate :
30 Oct-2 Nov 1997
Abstract :
Pulse oximetry is used to provide continuous, noninvasive monitoring of arterial hemoglobin saturation (SpO2). The amplitude of the plethysmographic waveform of the pulse oximeter (PW) is related to variations in blood flow and volume at the tissue level during each cardiac cycle. We designed a computerized analysis of the PW to evaluate peripheral blood perfusion. The software provides the following functions: (1) graphical presentation and instantaneous values of the physiological data in real-time; (2) delay measurement between QRS wave of ECG and the beginning of PW; (3) PW variabilities induced by the mechanical ventilation; and (4) temporal change of vascular compliance and resistance by using an electrical model. This tool was assessed in an in vitro model
Keywords :
blood flow measurement; blood pressure measurement; haemorheology; medical diagnostic computing; medical signal processing; oximetry; paediatrics; patient monitoring; plethysmography; waveform analysis; ECG QRS wave; arterial hemoglobin saturation; blood pressure measurement; computerized analysis; continuous analysis; continuous noninvasive monitoring; delay measurement; electrical model; graphical presentation; hemodynamic monitoring; in vitro model; mechanical ventilation induced variability; newborn infants; peripheral blood perfusion; pulse oximeter plethysmographic waveform; signal analysis; temporal change; transfer function; variations in blood flow; vascular compliance; vascular resistance; Biomedical monitoring; Blood flow; Computer peripherals; Computerized monitoring; Electric variables measurement; Electrical resistance measurement; Hemodynamics; Mechanical variables measurement; Propagation delay; Software measurement;
Conference_Titel :
Engineering in Medicine and Biology Society, 1997. Proceedings of the 19th Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-4262-3
DOI :
10.1109/IEMBS.1997.756520
