• Yung-Chieh Huang, Mei-Chin Wen, Ming-Ju Wu, Shang-Feng Tsai, Tung-Min Yu, Ya-Wen Chuang, Shih-Ting Huang, Shuo-Chun Weng, Mu-Chi Chung, Chia-Tien Hsu, Chun-Yi Wu, Chun-Te Huang, Tsai-Jung Wang, Hsien-Fu Chiu, and Cheng-Hsu Chen.
• Division of Nephrology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan.
• Medicine (Baltimore). 2022 Nov 18; 101 (46): e31602e31602.

AbstractThe elderly population is expanding rapidly, and that has become a major healthcare burden in terms of chronic kidney disease. The distribution patterns of kidney diseases in these elderly patients remain largely unclear. Here, we compared biopsy-based renal disease patterns between elderly and nonelderly patients. We performed a single-center, retrospective study (1992-2008) on biopsy-proven renal diseases to compare results between geriatric patients (age ≥ 65 years; n = 254) and nongeriatric patients (18 ≤ age < 65 years; n = 2592). Renal pathology was interpreted by pathologists based on light microscopy, immunofluorescence, and electron microscopy. The ages of the geriatric and nongeriatric groups were 71.8 ± 4.5 (65.1-87.3) and 39.7 ± 17.6 (18-64.9) years, respectively, and 74% and 41% of them, respectively, were men. In the geriatric group, the most frequent diagnosis was membranous nephropathy (46.1%), followed by minimal change disease/focal segmental glomerulosclerosis (16.9%), diabetic nephropathy (8.3%), hypertensive nephrosclerosis (7.5%), and IgA nephropathy (5.9%). The geriatric group had more membranous nephropathy and less lupus nephritis and IgA nephropathy than the nongeriatric group. Furthermore, the 5-year survival rate of the geriatric group was significantly low. Our results demonstrated the different distributions of renal biopsy patterns in geriatric patients diagnosed with acute or chronic progressive kidney injury and proteinuria through renal biopsy.Copyright © 2022 the Author(s). Published by Wolters Kluwer Health, Inc.

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