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Evaluation of the HemoCue ® for measuring intra‐operative haemoglobin concentrations: a comparison with the Coulter Max‐M ®
Author(s) -
Lardi A. M.,
Hirst C.,
Mortimer A. J.,
McCollum C. N.
Publication year - 1998
Publication title -
anaesthesia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.839
H-Index - 117
eISSN - 1365-2044
pISSN - 0003-2409
DOI - 10.1046/j.1365-2044.1998.00328.x
Subject(s) - medicine , repeatability , limits of agreement , nuclear medicine , significant difference , mean difference , surgery , statistics , mathematics , confidence interval
We compared haemoglobin concentration values obtained using a portable haemoglobinometer, the HemoCue, in the operating theatre with the results obtained by the Coulter Max‐M in the laboratory. Haemoglobin concentrations were measured on 52 arterial blood samples obtained from 13 patients during aortic surgery, in theatre with the HemoCue and again by the Coulter Max‐M. Twenty routine samples from the laboratory were also analysed by both methods. There was no significant difference between results, with a mean of 10.94 gdl −1 and 10.90 gdl −1 for the HemoCue and Coulter, respectively (p = 0.12, t = −1.99, df = 70). The limits of agreement of the two methods (mean difference ± 2 SD) were −0.37 and +0.45 gdl −1 . The coefficients of repeatability of the 20 samples analysed in duplicate on each device were 0.26 gdl −1 and 0.33 gdl −1 , respectively. The coefficients of variance were 0.74% (HemoCue) and 0.93% (Coulter). With adequate training and monitoring, the HemoCue provides comparable haemoglobin results for near‐patient testing in theatre.