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Elevated levels of platelet-to-lymphocyte ratio may predict the reduced risk of MPO-ANCA associated vasculitis in Chinese patients with end stage of renal disease / 中南大学学报(医学版)
Journal of Central South University(Medical Sciences) ; (12): 211-218, 2022.
Article in Chinese | WPRIM | ID: wpr-930189
ABSTRACT

Objective:

Platelet-to-lymphocyte ratio (PLR) has recently been investigated as a new inflammatory marker in many inflammatory diseases, including systemic lupus erythematosus and immunoglobulin A vasculitis. However, there were very few reports regarding the clinical role of PLR in patients with anti-neutrophil cytoplasmic antibody (ANCA) associated vasculitis. This study was thus undertaken to investigate the relationship between inflammatory response and disease activity in Chinese patients with myeloperoxidase-anti-neutrophil cytoplasmic antibody (MPO-ANCA) associated vasculitis. Furthermore, we evaluated whether PLR predicts the progression of end stage of renal disease (ESRD) and all-cause mortality.

Methods:

The clinical, laboratory and pathological data, and the outcomes of MPO-ANCA associated vasculitis patients were collected. The Spearman correlation coefficient was computed to examine the association between 2 continuous variables. Cox regression analysis was used to estimate the association between PLR and ESRD or all-cause mortality.

Results:

A total of 190 consecutive patients with MPO-ANCA associated vasculitis were included in this study. Baseline PLR was positively correlated with CRP (r=0.333, P<0.001) and ESR (r=0.218, P=0.003). PLR had no obvious correlation with Birmingham Vasculitis Activity Score (BVAS). Patients having PLR≥330 exhibited better cumulative renal survival rates than those having PLR<330 (P=0.017). However, there was no significant difference in the cumulative patient survival rates between patients with PLR≥330 and those with PLR<330 at diagnosis (P>0.05). In multivariate analysis, PLR is associated with the decreased risk of ESRD (P=0.038, HR=0.518, 95%CI 0.278 to 0.963). We did not find an association between PLR with all-cause mortality using multivariate analysis (HR=1.081, 95%CI 0.591 to 1.976, P=0.801).

Conclusion:

PLR is positively correlated with CRP and ESR. Furthermore, PLR may independently predict the risk of ESRD.

Full text: Available Index: WPRIM (Western Pacific) Type of study: Etiology study / Prognostic study Language: Chinese Journal: Journal of Central South University(Medical Sciences) Year: 2022 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Type of study: Etiology study / Prognostic study Language: Chinese Journal: Journal of Central South University(Medical Sciences) Year: 2022 Type: Article