Clinical Focus ›› 2024, Vol. 39 ›› Issue (2): 134-139.doi: 10.3969/j.issn.1004-583X.2024.02.007

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Diagnostic value of laboratory indexes in patients with pulmonary tuberculosis complicated by pulmonary embolism

Liu Lei1, Li Mingwu2(), Wan Rong2   

  1. 1. School of Public Health, Dali University, Dali 671000, China
    2. Second Department of Tuberculosis, Kunming Third People's Hospital, Kunming 650041, China
  • Received:2023-10-12 Online:2024-02-20 Published:2024-04-18
  • Contact: Li Mingwu E-mail:ynkmlmw@sina.com

Abstract:

Objective To investigate the diagnostic value of laboratory indicators in patients with pulmonary tuberculosis (PTB) complicated by pulmonary embolism (PE), and to provide evidence for the patients. Methods Sixty inpatients with PTB and PE in our hospital from January 2019 to December 2021 were selected as the observation group. In addition, 60 patients with simple PTB matched according to 1∶1 ratio were selected as the control group. The differences in general information and related laboratory data between the two groups were observed. Binary logistic regression was used to analyze the risk factors, and the receiver operating characteristic (ROC) curve was drawn for meaningful indicators to evaluate their diagnostic value. Results The levels of white blood cells, neutrophils, C-reactive protein and procalcitonin in the observation group were significantly higher than those of the control group (P<0.05). Biochemical indicators including D-dimer, fibrinogen, troponin I, myoglobin, N-terminal pro-brain natriuretic peptide (NT-proBNP) in the observation group were significantly higher than those in the control group (P<0.05). The lymphocyte, albumin, high density lipoprotein cholesterol, oxygen partial pressure and antithrombin Ⅲ in the observation group were significantly lower than those of the control group (P<0.05). The results from binary logistic regression analysis showed that D-dimer, antithrombin Ⅲ and NT-proBNP were risk factors for PTB with PE (OR=1.302, 0.957, 1.012). The area under the curve (AUC) of D-dimer, antithrombin Ⅲ and NT-proBNP was 0.858, 0.711 and 0.831, respectively. Conclusion D-dimer>1.29 mg/L, antithrombin Ⅲ<101.6%, NT-proBNP >99.79 ng/L have certain predictive value for PE in patients with PTB, which can be used as an important index to predict PE and evaluate the prognosis of patients with PTB.

Key words: tuberculosis, pulmonary, pulmonary embolism, d-dimer, antithrombin Ⅲ

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