Home    中文  
 
  • Search
  • lucene Search
  • Citation
  • Fig/Tab
  • Adv Search
Just Accepted  |  Current Issue  |  Archive  |  Featured Articles  |  Most Read  |  Most Download  |  Most Cited

Chinese Journal of Critical Care & Intensive Care Medicine(Electronic Edition) ›› 2026, Vol. 12 ›› Issue (01): 66-74. doi: 10.3877/cma.j.issn.2096-1537.2026.01.011

• Clinical Research • Previous Articles     Next Articles

Effect of platelet transfusion on the prognosis of patients with sepsis-associated severe thrombocytopenia

Zhong Wang, Zhaotian Guo, Qianhui Chen, He Miao, Wanting Su, Renyu Ding()   

  1. Department of Critical Care Medicine, the First Hospital of China Medical University, Shenyang 110001, China
  • Received:2025-07-02 Online:2026-02-28 Published:2026-04-29
  • Contact: Renyu Ding

Abstract:

Objective

This retrospective cohort study, utilizing the Medical Information Mart for Intensive Care Ⅳ (MIMIC-Ⅳ) database, aimed to investigate the impact of platelet transfusion on prognosis of patients with sepsis-associated severe thrombocytopenia.

Methods

Patients diagnosed with sepsis-associated severe thrombocytopenia were identified from the MIMIC-Ⅳ database. Based on whether they received platelet transfusion, they were divided into transfusion and non-transfusion groups (PLT≤50×109/L: 708 cases; PLT≤20×109/L: 214 cases). Prognostic variables were identified using Least Absolute Shrinkage and Selection Operator (LASSO) regression. A Multivariable Cox proportional hazards model was constructed to assess the association between platelet transfusion and mortality, with hazard ratios (HRs) with 95% confidence intervals (CIs) calculated.

Results

A total of 1,914 patients with sepsis-associated severe thrombocytopenia were included (PLT≤50×109/L). Patients in the transfusion group had higher mortality rates (35.20%) and more requirements for organ support therapies (mechanical ventilation, renal replacement therapy, and extracorporeal membrane oxygenation usage rates: 57.10%, 13.80%, and 1.41%, respectively) than those in the non-transfusion group (23.10%, 38.30%, 8.60%, and 0.25%, respectively), with all differences being statistically significant (P<0.01). Multivariable Cox regression analysis showed that platelet transfusion did not significantly improve 28-days mortality at either PLT threshold (PLT≤50×109/L: HR=1.10, 95% CI: 0.90-1.36, P=0.346; PLT≤20×109/L: HR=0.94, 95% CI: 0.61-1.44, P=0.774). Age, white blood cell count, prothrombin time, and activated partial thromboplastin time were identified as independent predictors of poor prognosis, whereas, higher albumin levels were associated with improved outcomes.

Conclusion

Platelet transfusion strategies based on current thresholds (≤50×109/L or ≤20×109/L) did not demonstrate significant improvement in 28-day survival for patients with sepsis and severe thrombocytopenia in this retrospective analysis. These findings warrant validation through prospective studies.

Key words: Sepsis, Severe thrombocytopenia, Platelet transfusion, Prognosis evaluation, LASSO-Cox regression

京ICP 备07035254号-19
Copyright © Chinese Journal of Critical Care & Intensive Care Medicine(Electronic Edition), All Rights Reserved.
Tel: 010-51322627 E-mail: ccm@cma.org.cn
Powered by Beijing Magtech Co. Ltd