British Journal of Anaesthesia, Vol 76, Issue 5 744-746, Copyright © 1996 by The Board of Management and Trustees of the British Journal of Anaesthesia
M. J. Souter and PJD. Andrews
Continuous jugular bulb venous oximetry has been validated previously for
periods of up to 12 h after calibration. We assessed a new Edslab venous
oximetry catheter in 15 patients with brain injury in the intensive care
unit. After insertion into the jugular bulb, the catheter was calibrated
using a laboratory co-oximeter. Subsequent comparisons were made at varying
intervals (range 20 min to 100 h); 78 paired samples were obtained during
periods of stable recordings. Estimation of haemoglobin saturation by the
methods correlated well (r2 = 0.97, P < 0.0001). Mean difference (d) was
small (0.28% (SD 2.35%)) and limits of agreement (d +/- (SD x 1.96)) were
acceptable (-4.88% to 4.32%). There was no appreciable drift and there was
negligible bias. This catheter did not suffer from problems of light
intensity described with other systems, and it provided acceptable accuracy
for clinical use for periods of up to and exceeding 24 h after calibration.
EQUIPMENT
Validation of the Edslab dual lumen oximetry catheter for continuous monitoring of jugular bulb oxygen saturation after severe head injury
Department of Clinical Neurosciences, Western General Hospital, Crewe Road South, Edinburgh EH4 2XU; Department of Anaesthesia, Western General Hospital, Crewe Road South, Edinburgh EH4 2XU
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C S A Macmillan, P J D Andrews, and V J Easton Increased jugular bulb saturation is associated with poor outcome in traumatic brain injury J. Neurol. Neurosurg. Psychiatry, January 1, 2001; 70(1): 101 - 104. [Abstract] [Full Text] [PDF] |
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