Clinical Focus ›› 2025, Vol. 40 ›› Issue (2): 117-121.doi: 10.3969/j.issn.1004-583X.2025.02.003

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Study on the relationship between platelet/lymphocyte ratio and coronary plaque characteristics in coronary heart disease patients combined with type 2 diabetes mellitus by virtual histology intravascular ultrasound

Hu Songlin, Di Ya, Liu Canzhang, Yan Jie()   

  1. Ward 1, Department of Cardiovascular Medicine, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, China
  • Received:2024-09-06 Online:2025-02-20 Published:2025-03-04
  • Contact: Yan Jie E-mail:3045687405@qq.com

Abstract:

Objective The relationship between platelet/lymphocyte ratio (PLT/LYM, PLR) and the characteristics of coronary plaque in coronary heart disease (CHD) patients combined with type 2 diabetes mellitus (T2DM) was studied by virtual histology intravascular ultrasound (VH-IVUS). Methods A total of 86 CHD patients combined with T2DM who were hospitalized in the First Ward of the Cardiovascular Department of the Affiliated Hospital of North China University of Science and Technology from March 2023 to March 2024 and underwent coronary intervention therapy (PCI) and intravascular ultrasound (VH-IVUS) examination were recruited. The patients were divided into two groups based on the median PLR levels: high PLR group (n=43) and low PLR group (n=43). The relationship between PLR and coronary plaque characteristics in CHD patients combined with T2DM was explored by VH-IVUS. Results Blood PLR levels in all patients ranged from 37.22 to 331.76, with a median of 119.22. The plaque area, outer elastic membrane area, necrotic tissue volume ratio, adipose tissue volume ratio, plaque burden, and total plaque volume in the low PLR group were all significantly lower than those in the high PLR group (P<0.05). Pearson correlation analysis showed that plaque area (r=0.398, P=0.000), outer elastic membrane area (r=0.299, P=0.005), plaque load (r=0338, P=0.001), and total plaque volume (r=0.263, P=0.014) were positively correlated with PLR. Conclusion PLR level can be used as a study index to determine plaque area and plaque volume.

Key words: coronary disease, diabetes mellitus, type 2, platelets, lymphocyte, ultrasonography, interventional

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