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ORIGINAL ARTICLE
Year : 2019  |  Volume : 150  |  Issue : 4  |  Page : 399-406

Association between neutrophil-lymphocyte & platelet lymphocyte ratios with prognosis & mortality in rapidly progressive glomerulonephritis


1 Division of Nephrology, Department of Medicine, University of Celal Bayar, Manisa, Turkey
2 Division of Pathology, Department of Medicine, University of Celal Bayar, Manisa, Turkey
3 Division of Public Health, Department of Medicine, University of Celal Bayar, Manisa, Turkey

Correspondence Address:
Dr Aysun Toraman
Division of Nephrology, Department of Medicine, University of Celal Bayar, Manisa
Turkey
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijmr.IJMR_1234_17

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Background & objectives: Rapidly progressive glomerulonephritis (RPGN) is a clinical syndrome manifested by features of nephritic syndrome and progressive loss of renal function over a short time. The objective of this study was to investigate the relationship between neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR) and prognostic factors and pathological findings of renal biopsy in RPGN. Methods: Consecutive newly diagnosed RPGN patients who had follow up for at least six months were retrospectively analyzed. The estimated glomerular filtration rate (eGFR) was calculated. Albumin, C-reactive protein (CRP) levels and CRP/albumin ratio were also calculated. Results: Fifty four patients were included in the study. The mean age was 48.92±20.12 years. Clinicopathological diagnosis was pauci-immune glomerulonephritis (GN) in 40 while two had postinfectious GN, six systemic lupus erythematosus, three IgA nephropathy, two Henoch-Schönlein purpura and one membranoproliferative GN. The mean NLR was 7.02±6.34 and mean PLR was 273.90±39.15. Positive correlations between NLR and CRP levels (P=0.009, r=0.511) and CRP/albumin ratios (P=0.005, r=0.542) were observed. PLR and CRP/albumin ratios (P=0.041, r=0.412) were correlated positively. The per cent of fibrocellular crescents was negatively correlated with NLR (P=0.019, r=−0.291), and positively correlated with the lymphocyte count (P=0.05, r=0.256). In secondary crescentic subgroup, the per cent of fibrinoid necrosis had a positive correlation with PLR (P=0.013, r=0.642). Both NLR (P=0.036) and PLR (P=0.051) detected at the first month of the treatment period, were observed to be significantly correlated with mortality. Interpretation & conclusions: This study showed that NLR could predict mortality in patients with RPGN; correlated with systemic inflammation; showed a negative correlation with the per cent of fibrocellular crescents and could be regarded as a measure of glomerular inflammatory state. Moreover, PLR may be considered to be an indicator of disease severity in acute phase of crescentic GN.


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