Clinical and pathological analysis of renal biopsies of elderly patients in Northeast China: a single-center study

Ping Nie, Yan Lou, Yali Wang, Xue Bai, Li Zhang, Shan Jiang, Bing Li, Ping Luo
Renal Failure 2021, 43 (1): 851-859

PURPOSE: To identify the clinical characteristics, histopathological features, and prognosis of kidney disease in a large cohort of elderly patients from Northeast China.

METHODS: We retrospectively analyzed the renal disease spectrum in 7,122 patients who underwent renal biopsies at the Second Hospital of Jilin University from 2006 to 2020. Patients were grouped according to age: below 60 years (non-elderly group, n  = 5923) and at least 60 years (elderly group, n  = 1199). The clinical and pathological characteristics of renal biopsy patients in the groups were analyzed using the t -test and chi-square test.

RESULTS: Compared with the non-elderly group, the elderly group had significantly fewer patients with primary glomerulonephritis, but more patients with tubulointerstitial disorders ( p  < .05). The incidence of IgA nephropathy, mesangial proliferative glomerulonephritis, and lupus nephritis was significantly lower in elderly patients than in non-elderly patients. The incidence of membranous nephropathy, membranoproliferative glomerulonephritis, diabetic nephropathy, hypertensive nephropathy, systemic vasculitis-associated renal damage, and amyloid nephropathy was significantly higher in elderly patients than in non-elderly patients ( p  < .05). The incidence of perinephric hematoma (≥4 cm2 ) in elderly patients with renal biopsy was lower than that in non-elderly patients. We noted that 79.9% of primary glomerulonephritis patients who received immunosuppressive therapy showed a remission rate of 83.5%.

CONCLUSION: The spectrum of kidney disease in the elderly is different from that in the younger population.

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