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Chinese Journal of Geriatrics Research(Electronic Edition) ›› 2020, Vol. 07 ›› Issue (03): 7-11. doi: 10.3877/cma.j.issn.2095-8757.2020.03.002

Special Issue:

• Original Article • Previous Articles     Next Articles

Predictive value of thromboelasmogram for deep venous thrombosis in elderly patients with severe disease

Peng Shen1, Qianqian Wang1, Yichen Gu1, Liangxiao Dai1, Lijin Wu1, Yunchao Shi1,()   

  1. 1. Department of Critical Care Medicine, the First Hospital of Jiaxing, Jiaxing 314001, China
  • Received:2020-03-26 Online:2020-08-28 Published:2020-08-28
  • Contact: Yunchao Shi
  • About author:
    Corresponding author: Shi Yunchao, Email:

Abstract:

Objective

To the predictive value of TEG for formation of Deep vein thrombosis (DVT) in elderly patients with severe thrombelastogram.

Methods

59 elderly critically patients admitted to Jiaxing First Hospital from February 2017 to May 2018 were selected, venous blood samples were collected on the 1st, 3rd, 5th and 7th day after admission, and the results of TEG and CCT were recorded. TEG and CCT indexes were compared between DVT group and non DVT group by T-test/rank sum test or chi-square test. ROC curve was used to evaluate the predictive value of TEG and CCT for DVT in elderly patients with severe diseases.

Results

The results of CCT showed that the difference of D-dimer (D-D) level between DVT group and non DVT group was statistically significant (t=2.345, P < 0.05); the results of TEG test showed that the formation speed, maximum amplitude and coagulation index of DVT group were significantly higher than those of non DVT group (t=2.151, 2.614; F=13.750; P < 0.05); and the maximum amplitude difference between the two groups was statistically significant only on the 5th day after admission (P < 0.05). According to the ROC curve analysis results, the indicators that are good at predicting the value of DVT clinically include maximum amplitude, agglutination velocity, coagulation index and D-D, the sensitivity is 94.4%, 50.0%, 44.4% and 95.1%, specificity is 48.8%, 85.4%, 85.4% and 33.3%, respectively, and area under the ROC curve is 0.762, 0.662, 0.656 and 0.651, respectively. Ma was 67.5 on the 5th day after admission into ICU, which was the best clinical diagnostic cut-off value for DVT.

Conclusion

The accuracy of TEG in predicting DVT in elderly critically patients was higher than that of CCT.

Key words: Thrombelastogram, Conventional coagulation test, Aged, Critically ill, Deep vein thrombosis

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