Combining transcutaneous blood gas measurement and pulse oximetry

Details

Serval ID
serval:BIB_2F1531D5926A
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Combining transcutaneous blood gas measurement and pulse oximetry
Journal
Anesthesia and Analgesia
Author(s)
Eberhard  P., Gisiger  P. A., Gardaz  J. P., Spahn  D. R.
ISSN
0003-2999 (Print)
Publication state
Published
Issued date
01/2002
Volume
94
Number
1 Suppl
Pages
S76-80
Notes
Comparative Study
Journal Article --- Old month value: Jan
Abstract
We are describing the preliminary results of tests performed in adult volunteers and in adult patients during and after general anesthesia with a miniaturized single sensor combining the continuous and non-invasive measurement of oxygen saturaiton by pulse oximetry (SpO2) and transcutaneous PCO2 (OxiCarbo sensor). The sensor is heated to 42 degrees C to arterialize the cutaneous tissue and is applied at the ear lobe with a special low-pressure clip. The results indicate a good agreement between ear lobe PCO2 and arterial PCO2 in the range 35 to 70 mmHg (10 patients, number of measurements 104, regression line TcPCO2 = 1.01 PaCO2 + 0.59 mmHg, bias 1.22 mmHg, SD 3.69 mmHg) and between ear lobe SpO2 and SaO2 (bias 0.44% with SD 0.77% in the range 80% to 100%, bias 1.39% with SD 1.43% in the range 60% to 80%). The ear lobe OxiCarbog sensor detects the SpO2 change 5 to 37 sec faster than a finger sensor and the PCO2 change 9 to 48 sec faster than a transcutaneous sensor fixed at the upper arm. Further improvements versus single sensors are a higher stability of the SpO2 signal and the possibility of performing long term SpO2 and PCO2 measurement at the ear lobe.
Keywords
Adult Carbon Dioxide/*blood Head-Down Tilt Humans *Oximetry Oxygen/*blood Sensitivity and Specificity
Pubmed
Web of science
Create date
28/01/2008 10:48
Last modification date
20/08/2019 13:13
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