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Hydroxyethyl starches and dextran during hip replacement surgery: effects on blood volume and coagulation
Linköping University, Department of Medical and Health Sciences, Anesthesiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Sinnescentrum, Department of Anaesthesiology and Surgery UHL. Östergötlands Läns Landsting, Sinnescentrum, Department of Intensive Care UHL.
Linköping University, Department of Medical and Health Sciences, Anesthesiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Sinnescentrum, Department of Anaesthesiology and Intensive Care VHN.
Linköping University, Department of Clinical and Experimental Medicine, Clinical Chemistry. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Diagnostics, Department of Clinical Chemistry.
Regional Hospital Motala.
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2011 (English)In: Acta Anaesthesiologica Scandinavica, ISSN 0001-5172, E-ISSN 1399-6576, Vol. 55, no 6, 677-685 p.Article in journal (Refereed) Published
Abstract [en]

Background: Colloid fluids influence the coagulation system by diluting the plasma and, potentially, by exerting other effects that are unique for each fluid product. We hypothesised that changes in the coagulation measured at the end of surgery would be mainly governed by differences in half-life between the colloid fluids. Methods: Eighty-four patients were randomised to receive one of four colloids: HES 130/0.42/6 : 1 (Venofundin (R)), 130/0.4/9 : 1 (Voluven (R)), 200/0.5/5 : 1 (Haes-steril (R)) and 6% dextran 70 (Macrodex (R)). Blood samples were taken just before and after a preoperative 500ml bolus, and also after subsequent elective hip replacement surgery. Volume expansion was estimated from the blood dilution and coagulation assessed by ROTEM, activated partial thromboplastin time, prothrombin international normalised ratio (PT-INR), D-dimer and thrombin-antithrombin complex (TAT). Results: The blood volume expansion amounted to approximately 600 ml for all four colloids directly after infusion. Voluven (R) and Haes-steril (R) prolonged the aPT time and Venofundin (R) increased TAT. Although all colloids increased PT-INR and D-dimer, the ROTEM analyses showed that they consistently shortened the clotting time and weakened the clot strength. These effects were mainly unchanged after surgery, during which the haemorrhage averaged 500-600 ml. Macrodex (R) produced a stronger volume support at the end of the surgery (91% of infused volume; Pless than0.001) than the three starch solutions (42-60%). Conclusions: All tested colloid fluids induced a mild hypercoagulable state with faster clotting, but with weaker clot strength. The additive influence of surgery was relatively small, and postoperative changes in coagulation were mainly due to differences in the half-life of each colloid.

Place, publisher, year, edition, pages
Blackwell Publishing Ltd , 2011. Vol. 55, no 6, 677-685 p.
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Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-69824DOI: 10.1111/j.1399-6576.2011.02434.xISI: 000292100800009OAI: oai:DiVA.org:liu-69824DiVA: diva2:433526
Available from: 2011-08-10 Created: 2011-08-08 Last updated: 2017-12-08

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Zdolsek, JoachimVegfors, MagnusLindahl, TomasHahn, Robert

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Zdolsek, JoachimVegfors, MagnusLindahl, TomasHahn, Robert
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AnesthesiologyFaculty of Health SciencesDepartment of Anaesthesiology and Surgery UHLDepartment of Intensive Care UHLDepartment of Anaesthesiology and Intensive Care VHNClinical ChemistryDepartment of Clinical Chemistry
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Acta Anaesthesiologica Scandinavica
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