Laboratory Medicine ›› 2025, Vol. 40 ›› Issue (7): 708-712.DOI: 10.3969/j.issn.1673-8640.2025.07.013

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Changes of platelet and coagulation function indicators in elderly patients with diabetic foot ulcers

JIANG Fengying, JIANG Yun, MI Rui, QIAN Ximing, WANG Qiubo()   

  1. Department of Clinical Laboratory,Wuxi Ninth People's Hospital Affiliated to Soochow University,Wuxi 214062,Jiangsu,China
  • Received:2024-03-04 Revised:2024-06-08 Online:2025-07-30 Published:2025-07-28

Abstract:

Objective To analyze the changes and clinical roles of platelet (PLT) and coagulation function indicators in elderly patients with diabetic foot ulcers (DFU). Methods A total of 79 patients aged ≥60 years with type 2 diabetes mellitus (T2DM) combined with DFU (DFU group) and 86 patients with T2DM without DFU (T2DM group) at Wuxi Ninth People's Hospital Affiliated to Soochow University from January 2022 to December 2023 were enrolled. Fasting blood glucose(FBG),glycated hemoglobin A1c(HbA1c),erythrocyte sedimentation rate(ESR),C-peptide,ferritin,total protein(TP),albumin(Alb),high-density lipoprotein cholesterol(HDL-C),low-density lipoprotein cholesterol(LDL-C),triglyceride(TG),total cholesterol(TC),creatinine(Cr),urea nitrogen,platelet (PLT) count and activated partial thromboplastin time(APTT),prothrombin time (PT),thrombin time(TT),fibrinogen(Fib),antithrombin-Ⅲ(AT-Ⅲ),fibrin(fibrinogen) degradation product (FDP) and D-dimer(DD)were determined. The clinical data of patients were collected. The differences in clinical indicators between DFU group and T2DM group were compared. Logistic regression analysis was used to evaluate the influencing factors of DFU. Results Cr,urea nitrogen,PLT count,PT,Fib,FDP and DD in DFU group were higher than those in T2DM group (P<0.05),and Alb,HDL-C and TC were lower than those in T2DM group (P<0.05). PLT count,PT and HDL-C were positively correlated (P<0.05),AT-Ⅲ was positively correlated with Alb,Cr and urea nitrogen (P<0.05),Fib was negatively correlated with Alb,HDL-C and TC (P<0.05),and DD was negatively correlated with Alb and HDL-C (P<0.05). Fib and FDP were independent risk factors for DFU (P<0.05),and AT-III was a protective factor for DFU (P<0.05). Conclusions Elderly patients with T2DM combined with DFU have a hypercoagulable state. The occurrence of DFU is related to PLT count and coagulation function. Monitoring PLT count and coagulation function is helpful for the early determination of complications of T2DM.

Key words: Platelet, Coagulation function, Diabetic foot ulcer, Type 2 diabetes mellitus

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