Reduction of proteinuria by therapeutic intervention improves the renal outcome of elderly patients with IgA nephropathy

Clinical and Experimental Nephrology
Yusuke OkabayashiTakashi Yokoo

Abstract

The number of elderly patients with IgA nephropathy (IgAN) is increasing in parallel with the increased longevity in the general population. However, information is limited regarding the characteristics of such patients. IgAN patients who were ≥60 years of age at diagnosis were retrospectively analyzed. The clinicopathological features at biopsy, therapies during the follow-up period, renal outcomes and extrarenal complications were evaluated. The characteristics of a total of 87 patients were as follows (mean values): 65 years of age, an eGFR of 47 mL/min/1.73 m2, and urinary protein excretion (UPE) of 1.9 g/day. In the initial 1-year follow-up period, UPE decreased from 2.4 to 0.4 g/day in patients treated with corticosteroids and 1.4 to 0.8 g/day in patients treated with conservative therapies, including renin-angiotensin system blockade. During the observation period, 26 % of the patients who received corticosteroids and 38 % of the patients treated with conservative therapies showed a ≥30 % decrease in their eGFR or reached end-stage renal disease. In the analysis of all patients, UPE at 1 year after the diagnosis was identified to be an independent predictor of the subsequent loss of renal function. However, neither corti...Continue Reading

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Citations

Jul 23, 2016·Clinical and Experimental Nephrology·Michio FukudaNobuyuki Ohte
Nov 21, 2017·Nephrology·Jing LinQi Qian
Apr 11, 2019·Clinical and Experimental Nephrology·Takahito Moriyama
Mar 6, 2021·Clinical and Experimental Nephrology·Tsuyoshi TakashimaMotoaki Miyazono

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