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Performances of disseminated intravascular coagulation scoring systems in septic shock patients.

ABSTRACT: BACKGROUND:There is no gold standard to diagnose septic shock-induced disseminated intravascular coagulation (DIC). The objective of our multicenter prospective study was to assess the performances of the different major scoring systems in terms of mortality prediction and DIC diagnosis. The JAAM-DIC 2016 score, the ISTH overt-DIC 2001 score, the associations of sepsis-induced coagulopathy (SIC) score with JAAM-DIC 2016 or ISTH overt-DIC scores were tested in patients within 12 h of their admission in ICU for septic shock (day 1) and at day 2. RESULTS:582 patients were enrolled in the study. 182/567 (32.1%) were diagnosed with DIC according to ISTH overt-DIC score, and 193/561 (34.4%) according to JAAM-DIC score; 486/577 patients (84.2%) were diagnosed with a coagulopathy according to SIC score. A moderate concordance was observed between ISTH overt-DIC and JAAM-DIC [??=?0.67 (0.60, 0.73), p?

SUBMITTER: Helms J

PROVIDER: S-EPMC7352012 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature

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Performances of disseminated intravascular coagulation scoring systems in septic shock patients.

Helms Julie J Severac François F Merdji Hamid H Clere-Jehl Raphaël R François Bruno B Mercier Emmanuelle E Quenot Jean-Pierre JP Meziani Ferhat F

Annals of intensive care 20200710 1

<h4>Background</h4>There is no gold standard to diagnose septic shock-induced disseminated intravascular coagulation (DIC). The objective of our multicenter prospective study was to assess the performances of the different major scoring systems in terms of mortality prediction and DIC diagnosis. The JAAM-DIC 2016 score, the ISTH overt-DIC 2001 score, the associations of sepsis-induced coagulopathy (SIC) score with JAAM-DIC 2016 or ISTH overt-DIC scores were tested in patients within 12 h of thei ...[more]

PMID: 32651674

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Project description:The thrombomodulin (TM)/activated protein C (APC) system plays an important role in maintaining the homeostasis of thrombosis and hemostasis and maintaining vascular integrity in vivo. TM expressed on vascular endothelium binds to thrombin, forming a 1:1 complex and acts as an anticoagulant. In addition, the thrombin-TM complex activates protein C to produce APC, which inactivates factors VIIIa and Va in the presence of protein S, thereby inhibiting further thrombin formation. Intriguingly, APC possesses anti-inflammatory as well as cytoprotective activities. Moreover, the extracellular domain of TM also possesses APC-independent anti-inflammatory and cytoprotective activities. Of note, the TM/APC system is compromised in disseminated intravascular coagulation (DIC) caused by sepsis due to various mechanisms, including cleavage of cell-surface TM by exaggerated cytokines and proteases produced by activated inflammatory cells. Thus, it is reasonable to assume that reconstitution of the TM/APC system by recombinant proteins would alleviate sepsis and DIC. On the basis of the success of the Protein C Worldwide Evaluation in Severe Sepsis (PROWESS) trial, the FDA approved the use of recombinant human APC (rhAPC) for severe sepsis patients in 2002. However, subsequent clinical trials failed to show clinical benefits for rhAPC, and an increased incidence of hemorrhage-related adverse events was noted, which prompted the industry to withdraw rhAPC from the market. On the other hand, recombinant human soluble TM (rTM) has been used for treatment of individuals with DIC since 2008 in Japan, and a phase III clinical trial evaluating the efficacy of rTM in severe sepsis patients with coagulopathy is now ongoing in the USA, South America, Asia, Australia, European Union, and other countries. This review article discusses the molecular mechanisms by which the TM/APC system produces anticoagulant as well as anti-inflammatory and cytoprotective activities in septic DIC patients.

Project description:Objectives: Patients with disseminated intravascular coagulation (DIC) due to sepsis often develop cerebral infarction; but the frequency, mechanism of onset and prognosis have not been fully elucidated. We reported courses and characteristics of septic DIC cases hospitalized in our hospital in the present study. Methods: Patients with septic DIC who underwent brain imaging were selected. Vital signs, disorders of consciousness and blood test results at the time of onset were compared between cases that developed cerebral infarction (cerebral infarction group) and those that did not (non-infarction group).In cases of cerebral infarction, the site and the size of the infarct lesion were also described. Results: In 27 septic DIC patients who underwent brain imaging, eight patients had cerebral infarction. Although the percentage of patients who survived in the cerebral infarction group (2/8, 25%) was lower than that in the non-infarction group (7/17, 37%), , no significant difference was observed as both group showed poor prognoses. Those two patients who survived in the cerebral infarction group had severe consciousness disturbance and poor functional prognosis. Although the body temperature was significantly lower and the blood pressure was higher in the cerebral infarction group, no significant difference was found in general blood tests, so we thought it would be necessary to look for other markers that could be indicators for the risk of cerebral infarction. In the cerebral infarction group, two cases had a single lesion, and six cases had multiple lesions. Of the latter, two cases had massive lesions with a diameter of 1.5 cm or greater, four cases had only small lesions with a diameter of less than 1.5 cm, and two cases had a mixture of both. Most of the patients had lesions in the vertebrobasilar artery, which suggested that the pathogenesis involves not only embolism due to microthrombi, but also vasculitis and intravascular inflammation. Conclusions: Cerebral infarction was observed highly frequently; eight out of 27 cases (29.6%) when brain imaging was undergone in septic DIC patients. The prognosis of patients with cerebral infarction was poor, but no difference from the non-infarction group was observed. In addition to embolism, the presence of inflammation is considered to be important for the onset. In order to predict the prognosis and determine a suitable treatment, it would be recommended to undergo brain imaging when patients with septic DIC have consciousness disturbance or elevated blood pressure, and do not have fever.

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Performances of disseminated intravascular coagulation scoring systems in septic shock patients.

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Performances of disseminated intravascular coagulation scoring systems in septic shock patients.

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