Detection of acute traumatic coagulopathy and massive transfusion requirements by means of rotational thromboelastometry: an international prospective validation study

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• 作者：Jostein S Hagemo (1) (2)
  Sarah C Christiaans (3) (4)
  Simon J Stanworth (5)
  Karim Brohi (6)
  P盲r I Johansson (7) (8)
  J Carel Goslings (3)
  Paal A Naess (9)
  Christine Gaarder (9)
  
  1. Department of Research ; Norwegian Air Ambulance Foundation ; Postboks 39 1441 ; Dr酶bak ; Norway
  2. Department of Anaesthesiology ; Oslo University Hospital ; Rikshospitalet ; Postboks 4950 ; Nydalen ; 0424 ; Oslo ; Norway
  3. Trauma Unit ; Department of Surgery ; Academic Medical Centre ; University of Amsterdam ; Meibergdreef 9 ; 1105 ; AZ ; Amsterdam ; Netherlands
  4. Department of Anesthesiology ; University of Alabama at Birmingham ; 1720 2nd Avenue S ; Birmingham ; AL ; 35233 ; USA
  5. NHS Blood & Transplant and Oxford University Hospitals NHS Trust ; John Radcliffe Hospital ; Headley Way ; Headington ; Oxford ; OX3 9DU ; UK
  6. Trauma Sciences ; Blizard Institute ; Barts and the London School of Medicine and Dentistry ; Queen Mary University of London ; The Blizard Building ; 4 Newark Street ; London ; E1 2AT ; UK
  7. Section for Transfusion Medicine ; Capital Region Blood Bank ; Rigshospitalet ; University of Copenhagen ; Klinisk Immunologisk Afdeling Rigshospitalet ; Blegdamsvej 9 ; 2100 K酶benhavn 脴 ; Copenhagen ; Denmark
  8. Department of Surgery ; University of Texas Medical School ; 6414 Fannin Street ; Houston ; TX ; 77030 ; USA
  9. Department of Traumatology ; Oslo University Hospital ; Ullev氓l ; Postboks 4950 Nydalen 0424 ; Oslo ; Norway
  
• 刊名：Critical Care
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：19
• 期：1
• 全文大小：489 KB
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• 刊物主题：Intensive / Critical Care Medicine; Emergency Medicine;
• 出版者：BioMed Central
• ISSN：1364-8535

文摘

Introduction The purpose of this study was to re-evaluate the findings of a smaller cohort study on the functional definition and characteristics of acute traumatic coagulopathy (ATC). We also aimed to identify the threshold values for the most accurate identification of ATC and prediction of massive transfusion (MT) using rotational thromboelastometry (ROTEM) assays. Methods In this prospective international multicentre cohort study, adult trauma patients who met the local criteria for full trauma team activation from four major trauma centres were included. Blood was collected on arrival to the emergency department and analyzed with laboratory international normalized ratio (INR), fibrinogen concentration and two ROTEM assays (EXTEM and FIBTEM). ATC was defined as laboratory INR >1.2. Transfusion requirements of 鈮?0 units of packed red blood cells within 24聽hours were defined as MT. Performance of the tests were evaluated by receiver operating characteristic curves, and calculation of area under the curve (AUC). Optimal cutoff points were estimated based on Youden index. Results In total, 808 patients were included in the study. Among the ROTEM parameters, the largest AUCs were found for the clot amplitude (CA) 5 value in both the EXTEM and FIBTEM assays. EXTEM CA5 threshold value of 鈮?7聽mm had a detection rate of 66.3% for ATC. An EXTEM CA5 threshold value of 鈮?0聽mm predicted MT in 72.7%. FIBTEM CA5 threshold value of 鈮?聽mm detected ATC in 67.5%, and a FIBTEM CA5 threshold value 鈮?聽mm predicted MT in 77.5%. Fibrinogen concentration 鈮?.6聽g/L detected ATC in 73.6% and a fibrinogen concentration 鈮?.90聽g/L predicted MT in 77.8%. Patients with either an EXTEM or FIBTEM CA5 below the optimum detection threshold for ATC received significantly more packed red blood cells and plasma. Conclusions This study confirms previous findings of ROTEM CA5 as a valid marker for ATC and predictor for MT. With optimum threshold for EXTEM CA5鈥夆墹鈥?0聽mm and FIBTEM CA5鈥夆墹鈥?聽mm, sensitivity is 72.7% and 77.5% respectively. Future investigations should evaluate the role of repeated viscoelastic testing in guiding haemostatic resuscitation in trauma.