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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Vos, J. J. Kalmar, A. F. Struys, M. M. R. F. Porte, R. J. Wietasch, J. K. G. Scheeren, T. W. L. Hendriks, H. G. D. |
| Description | Country affiliation: Netherlands Author Affiliation: Vos JJ ( Department of Anesthesiology, The University of Groningen, University Medical Center Groningen, Groningen, The Netherlands. j.j.vos@umcg.nl) |
| Abstract | BACKGROUND: The Masimo Radical 7 (Masimo Corp., Irvine, CA, USA) pulse co-oximeter(®) calculates haemoglobin concentration (SpHb) non-invasively using transcutaneous spectrophotometry. We compared SpHb with invasive satellite-lab haemoglobin monitoring (Hb(satlab)) during major hepatic resections both under steady-state conditions and in a dynamic phase with fluid administration of crystalloid and colloid solutions. METHODS: Thirty patients undergoing major hepatic resection were included and randomized to receive a fluid bolus of 15 ml kg(-1) colloid (n=15) or crystalloid (n=15) solution over 30 min. SpHb was continuously measured on the index finger, and venous blood samples were analysed in both the steady-state phase (from induction until completion of parenchymal transection) and the dynamic phase (during fluid bolus). RESULTS: Correlation was significant between SpHb and Hb(satlab) (R(2)=0.50, n=543). The modified Bland-Altman analysis for repeated measurements showed a bias (precision) of -0.27 (1.06) and -0.02 (1.07) g dl(-1) for the steady-state and dynamic phases, respectively. SpHb accuracy increased when Hb(satlab) was <10 g dl(-1), with a bias (precision) of 0.41 (0.47) vs -0.26 (1.12) g dl(-1) for values >10 g dl(-1), but accuracy decreased after colloid administration (R(2)=0.25). CONCLUSIONS: SpHb correlated moderately with Hb(satlab) with a slight underestimation in both phases in patients undergoing major hepatic resection. Accuracy increased for lower Hb(satlab) values but decreased in the presence of colloid solution. Further improvements are necessary to improve device accuracy under these conditions, so that SpHb might become a sensitive screening device for clinically significant anaemia. |
| File Format | HTM / HTML |
| ISSN | 00070912 |
| e-ISSN | 14716771 |
| Journal | British Journal of Anaesthesia |
| Issue Number | 4 |
| Volume Number | 109 |
| Language | English |
| Publisher | Oxford University Press |
| Publisher Date | 2012-10-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | Open |
| Subject Keyword | Discipline Anesthesiology Hemoglobins Liver Surgery Oximetry Anesthesia, Epidural Anesthesia, General Blood Gas Analysis Colloids Data Interpretation, Statistical Fluid Therapy Hepatectomy Isotonic Solutions Monitoring, Intraoperative Plasma Substitutes Reproducibility Of Results Comparative Study Randomized Controlled Trial |
| Content Type | Text |
| Resource Type | Article |
| Subject | Anesthesiology and Pain Medicine |
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