Article (Scientific journals)
Impact of 6 % hydroxyethyl starch (HES) 130/0.4 on the correlation between standard laboratory tests and thromboelastography (TEG(R)) after cardiopulmonary bypass.
HANS, Grégory; Hartstein, Gary; ROEDIGER, Laurence et al.
2015In Thrombosis Research, 135 (5), p. 984-9
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Keywords :
Cardiopulmonary bypass; Hydroxyethyl starch; Thrombocytopenia; Thromboelastography; Transfusion
Abstract :
[en] BACKGROUND: Hydroxyethyl starches (HES) affect the results of thromboelastography (TEG(R)). We sought to determine whether using HES rather than crystalloids for cardiopulmonary bypass (CPB) prime and intraoperative fluid therapy changes the TEG cutoff values best identifying patients with a low platelet count or a low fibrinogen level after CPB. METHODS: Data from 96 patients who had on-pump cardiac surgery, a TEG(R) (kaolin-heparinase) and standard investigations of blood clotting performed after separation from CPB and protamine administration were retrospectively reviewed. Patients were assigned to the HES or crystalloid group according to whether balanced 6% HES 130/0.4 or balanced crystalloids were used for intraoperative fluid therapy and pump prime. Mutlivariable linear regression models with computation of the standardized regression coefficients were used to identify independent associations between the four main TEG parameters (R time, alpha angle, K time and MA) and the type of fluid used, the INR, the aPTT, the fibrinogen level and the platelet count. Receiver-operating-characteristic curves were used to assess the effect of HES on the ability of TEG parameters to identify patients with a platelet count<80.000mul(-1) or a fibrinogen level<1.5 gr l(-1) and on the cutoff values best identifying these patients. RESULTS: The type of fluid used significantly affected the MA (P<0.001), the K time (P<0.001) and the alpha angle (P<0.001) regardless of the results of the standard clotting tests. According to standardized ss regression coefficients the platelet count and the type of fluid used were stronger predictors of the MA, the alpha angle and the K time than the fibrinogen level. MA better predicted platelets<80.000mul(-1) than K time and alpha angle (P=0.023). The best cutoff value of MA identifying patients with platelets<80.000mul(-1) was 62mm in the crystalloid group and 53mm in the HES group. MA, K time and alpha angle were poor predictors of the postoperative fibrinogen level. CONCLUSION: HES significantly changes the cutoff value of TEG(R) MA best identifying patients<80.000mul(-1) after on-pump cardiac surgery.
Disciplines :
Anesthesia & intensive care
Author, co-author :
HANS, Grégory ;  Centre Hospitalier Universitaire de Liège - CHU > Anesthésie et réanimation
Hartstein, Gary ;  Université de Liège > Département des sciences cliniques > Département des sciences cliniques
ROEDIGER, Laurence ;  Centre Hospitalier Universitaire de Liège - CHU > Service d'anesthésie - réanimation
Hubert, Bernard
PETERS, Pierre ;  Centre Hospitalier Universitaire de Liège - CHU > Hématologie biologique et immuno hématologie
Senard, Marc ;  Centre Hospitalier Universitaire de Liège - CHU > Service d'anesthésie - réanimation
Language :
English
Title :
Impact of 6 % hydroxyethyl starch (HES) 130/0.4 on the correlation between standard laboratory tests and thromboelastography (TEG(R)) after cardiopulmonary bypass.
Publication date :
2015
Journal title :
Thrombosis Research
ISSN :
0049-3848
eISSN :
1879-2472
Publisher :
Elsevier, United Kingdom
Volume :
135
Issue :
5
Pages :
984-9
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
Copyright (c) 2015 Elsevier Ltd. All rights reserved.
Available on ORBi :
since 21 May 2015

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