• Marcus D Lancé, Gerhardus J A J M Kuiper, Matthijs Sloep, Henri M H Spronk, René van Oerle, Hugo ten Cate, Marco A E Marcus, and Yvonne M C Henskens.
• Department of Anaesthesiology and Pain Treatment, Maastricht University Medical Centre+, Maastricht, The Netherlands. marcus.lance@mumc.nl
• Thromb. Res. 2012 Sep 1; 130 (3): e147-50.

UnlabelledThromboelastometry (ROTEM) is a popular point-of-care test. It generates results quickly and may benefit individualised guided haemostatic therapy. However, processing of specimens by non-technicians might decrease the quality and reproducibility of results. Centralised laboratory equipment receiving specimens through a pneumatic tube system (PTS) could avoid this. This study aimed to evaluate the influence of PTS transport on ROTEM results and its contribution to contact activation assessed by thrombin generation (TG).MethodsSpecimens from 44 patients were drawn immediately after arterial puncture. Two were anticoagulated by citrate and two by citrate/corn trypsin inhibitor, a Factor XIIa pathway inhibitor. Both types of samples were transported by walking and PTS. Subsequently, analysis was performed: ROTEM on citrated blood, and TG on citrated and corn trypsin inhibitor (CTI) blood using either 0 or 1 pM tissue factor (TF).ResultsIn ROTEM analysis the NATEM assay showed significant differences. The EXTEM assay revealed small significant differences for clot formation time: 65 seconds (SD ± 20) versus 67 seconds (SD ± 17), and alpha angle 79° (SD ± 3) versus 77° (SD ± 3). The results remained within reference range. TG was not significantly affected by the type of tube transport, independent of the amount of TF.ConclusionPTS for ROTEM analysis is feasible except for NATEM assays. The amount of contact activation via Factor XIIa in terms of TG is independent of transport type. However, due to the different characteristics of pneumatic systems, hospitals should check its impact on the results before introducing this route of transport.Crown Copyright © 2012. Published by Elsevier Ltd. All rights reserved.

15 keywords...

hide…