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ISSN 1001-5256 (Print)
ISSN 2097-3497 (Online)
CN 22-1108/R
Volume 38 Issue 2
Feb.  2022
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Article Contents

Effect of platelet level and platelet parameters on the prognosis of patients with acute-on-chronic liver failure

DOI: 10.3969/j.issn.1001-5256.2022.02.023
Research funding:

The Third "Sansheng TCP Young and Middle-Aged Scientific Research Fund" 

More Information
  • Corresponding author: LIANG Jing, haolele77@sina.com
  • Received Date: 2021-05-30
  • Accepted Date: 2021-09-24
  • Published Date: 2022-02-20
  •   Objective  To investigate the differences in platelet and platelet parameters between patients with different types and etiologies of acute-on-chronic liver failure (ACLF) and the influence of platelet and its dynamic change on the prognosis of ACLF patients.  Methods  Clinical data, liver function parameters, platelet, and platelet parameters were collected from 364 patients with ACLF who attended Tianjin Third Central Hospital from January 2014 to December 2018. Platelet level and platelet parameters (platelet distribution width and mean platelet volume) were compared between the patients with different types and etiologies of ACLF, and their influence on the 90-day mortality rate of ACLF patients was analyzed, as well as the association of the dynamic change of platelet at baseline and on days 7 and 14 after admission with the prognosis of patients. The chi-square test was used for comparison of categorical data between groups; the Kruskal-Wallis H test or Mann-Whitney U test was used for comparison of continuous data between groups; the Kaplan-Meier method was used for survival analysis; the univariate and multivariate Cox regression analyses were used to analyze the parameters associated with prognosis; the repeated measures analysis of variance was used to analyze the dynamic change of platelet; receiver operating characteristic (ROC) curve was plotted based on platelet level and overall survival.  Results  The patients with type C ACLF had a significantly lower platelet level than those with type A/B ACLF (all P < 0.001). Compared with the ACLF patients with hepatitis B, the ACLF patients with autoimmune liver diseases had a significant reduction in mean platelet volume (P=0.035). Based on the cut-off value obtained by the ROC curve analysis, the patients with a platelet level of < 60.5×109/L had a significantly higher mortality rate than those with a platelet level of ≥60.5×109/L (P=0.006). Platelet level was an independent protective factor against 90-day death in ACLF patients (hazard ratio=0.995, 95% confidence interval: 0.990-0.999, P=0.026), and the mortality rate increased with the reduction in platelet level. The patients with type C ACLF had a significantly higher mortality rate than those with type A ACLF (P < 0.05), and the death group tended to have a significantly greater reduction in platelet level (P < 0.05). Compared with the survival group, the 90-day death group had a significantly greater reduction in platelet (P=0.032).  Conclusion  There is a difference in platelet level between ACLF patients with different types. Platelet level is an important indicator for the 90-day prognosis of ACLF patients, and patients with a greater dynamic reduction in platelet tend to have a higher 90-day mortality rate.

     

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