Document Detail

Test 1 analyser for determination of ESR. 1. Practical evaluation and comparison with the Westergren technique.
MedLine Citation:
PMID:  19929270     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: various modifications of the Erythrocyte Sedimentation Rate (ESR) determination have been suggested since the original Westergren procedure that has been adopted as the gold standard by the International Council for Standardization in Haematology (ICSH). Recently, an automated method, (Alifax Test 1), based on a technique completely different from Westergren, has been introduced. MATERIAL AND METHODS: In this comparative study, ESR of blood from 680 patients with various rheumatic diseases was determined on both Test 1 and the StaRRsed automated ESR analyser which performs measurements in accordance with ICSH specifications. Furthermore the robustness of the new technique was evaluated. RESULTS: Direct correlation of Test 1 and StaRRsed measurements confirmed the results of previous studies: an overall correlation coefficient of R = 0.90. However, further statistical analysis showed that, depending on the instrument that was used, in 78 samples (i.e. 11.5%) the results could lead to different treatment suggestions. Furthermore it appeared that several procedural factors could influence the final Test 1 outcome. CONCLUSIONS: Due to its sensitivity for procedural variations, Test 1 measurements should be carried out under strictly standardized conditions. Especially at the higher ESR levels the Test 1 technique is, however, not a reliable alternative for the ICSH approved 'Westergren' method.
Max R Hardeman; Marieke Levitus; Antonio Pelliccia; Anna A Bouman
Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article    
Journal Detail:
Title:  Scandinavian journal of clinical and laboratory investigation     Volume:  70     ISSN:  1502-7686     ISO Abbreviation:  Scand. J. Clin. Lab. Invest.     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-02-04     Completed Date:  2010-04-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0404375     Medline TA:  Scand J Clin Lab Invest     Country:  England    
Other Details:
Languages:  eng     Pagination:  21-5     Citation Subset:  IM    
Department of Translational Physiology, Academic Medical Center, Amsterdam, the Netherlands.
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MeSH Terms
Automation, Laboratory / instrumentation
Blood Sedimentation*
Hematologic Tests / instrumentation*,  methods
Reference Standards
Rheumatic Diseases / blood
Sensitivity and Specificity

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