Journal of Capital Medical University ›› 2022, Vol. 43 ›› Issue (5): 707-712.doi: 10.3969/j.issn.1006-7795.2022.05.007

• Clinical and Basic Research in Nephrology • Previous Articles     Next Articles

Clinical and pathological risk factors for renal prognosis in patients with biopsy-proven diabetic nephropathy classified as chronic kidney disease stage 4

Yu Tianyu, Jiang Shimin, Gao Hongmei, Zou Guming, Li Wenge*   

  1. Department of Nephrology, China-Japan Friendship Hospital, Beijing 100029, China
  • Received:2022-05-09 Online:2022-10-21 Published:2022-10-25
  • Contact: * E-mail:wenge_lee2002@126.com

Abstract: Objective To investigate the pathological types, clinical manifestations and prognosis of patients with pathologically diagnosed diabetic nephropathy (DN) classified as chronic kidney disease (CKD) stage 4. Methods The clinical data of pure DN patients with biopsy-proven diagnosis with CKD stage 4, were selected from the Department of Nephrology of China-Japan Friendship Hospital during January 2002 to March 2021.The primary endpoint was set to the composite of progression to end stage renal disease (ESRD) or death. Patients were divided into the stable and progressive groups according to the occurrence of endpoint events. Univariate analysis and Cox regression were used to analyze the relationship between clinical manifestations, pathological types and prognosis of patients. Results A total of 53 patients were included in the study, including 19 cases of type Ⅱb, 32 cases of type Ⅲ, and 2 cases of type Ⅳ. The median follow-up was 24 (2.0,46.5) months, and the median renal survival was 17.3 (8.7,25.8) months. The primary end point event occurred in33 patients and 5 of them died. Median renal survival was 16.5 (9.6,23.5) months in the non-continued angiotensin-converting enzyme inhibitors (ACEI)/angiotensin Ⅱ receptor blockers (ARB) group (n=32) and 20.7 (8.8,25.8)months in the continued ACEI/ARB group (n=21).The multivariate Cox regression analysis showed thatnone of triglyceride, control of blood glucose and pathological class were independent prognostic factors for renal survival(P>0.05). Conclusion There was no significant relationship between pathological type and DN renal survival time. The continued use of ACEI/ARB drugs could not effectively delay the progression of advanced CKD in DN. There was no significant correlation between different pathological classification and prognosis of DN during CKD stage 4. ACEI/ARB therapy has a prolonged but no significant benefit for renal survival. Patients with DN should be diagnosed and treated early.

Key words: diabetic nephropathy, renal biopsy, chronic kidney disease stage 4, pathology, prognosis

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