TY - JOUR
T1 - Clinicopathological discordance in biopsy-proven nephrosclerosis
T2 - a nationwide cross-sectional study of the Japan Renal Biopsy Registry (J-RBR)
AU - Sumida, Keiichi
AU - Takeda, Asami
AU - Furuichi, Kengo
AU - Uesugi, Noriko
AU - Ubara, Yoshifumi
AU - Sato, Hiroshi
AU - Sugiyama, Hitoshi
AU - Shimizu, Akira
AU - Yokoyama, Hitoshi
N1 - Funding Information:
The authors are grateful to all the colleagues who collected the data for the J-RBR in participated facilities (Supplementary Appendix). This study was supported in part by a Grant-in-Aid for Intractable Renal Diseases Research, Research on Rare and Intractable Diseases, and Health and Labour Sciences Research Grants from the Ministry of Health, Labour, and Welfare of Japan (H29-nanchi-ippan-017); Japan Agency for Medical Research and Development (18ek0109354h0001).
Publisher Copyright:
© 2021, The Author(s).
PY - 2021
Y1 - 2021
N2 - Background: Patients with nephrosclerosis display heterogenous clinical phenotypes, often leading to a clinical diagnosis discordant with pathological nephrosclerosis diagnosis. However, little is known about clinical factors associated with clinicopathological discordance of biopsy-proven nephrosclerosis. Methods: In a cross-sectional study of 891 patients with biopsy-proven nephrosclerosis registered in the Japan Renal Biopsy Registry (J-RBR) between July 2007 and June 2016, we examined clinical characteristics associated with a pre-biopsy clinical diagnosis discordant with pathological nephrosclerosis diagnosis using multivariable logistic regression with adjustment for relevant clinical characteristics. Results: Overall, the mean (SD) age was 58.6 (13.7) years; 67.6% of patients were male; and 63.2% were on antihypertensive drugs. The median estimated glomerular filtration rate (eGFR) was 43.8 mL/min/1.73 m2 and the median proteinuria was 0.5 g/day. Of the 891 patients, 497 (55.8%) had a clinical diagnosis discordant with pathological nephrosclerosis diagnosis, with chronic nephritic syndrome being the most common (> 75%) discordant clinical diagnosis. After multivariable adjustment, age (odds ratio 1.34, [95% confidence interval, 1.16–1.55], per 10 years increase), eGFR (1.10 [1.00–1.21], per 10 mL/min/1.73 m2 increase), and proteinuria (1.20 [1.03–2.16], per 1 g/day decrease) were found to be significantly associated with the clinicopathological discordance. Conclusions: Patients with older age, higher eGFR, and lower proteinuria had significantly higher likelihood of being clinically diagnosed with other glomerular disease in patients with biopsy-proven nephrosclerosis. Our findings highlight the heterogeneous clinical phenotypes of nephrosclerosis and suggest the need for continuous improvement of clinical diagnostic accuracy as well as for wider kidney biopsy indications for nephrosclerosis.
AB - Background: Patients with nephrosclerosis display heterogenous clinical phenotypes, often leading to a clinical diagnosis discordant with pathological nephrosclerosis diagnosis. However, little is known about clinical factors associated with clinicopathological discordance of biopsy-proven nephrosclerosis. Methods: In a cross-sectional study of 891 patients with biopsy-proven nephrosclerosis registered in the Japan Renal Biopsy Registry (J-RBR) between July 2007 and June 2016, we examined clinical characteristics associated with a pre-biopsy clinical diagnosis discordant with pathological nephrosclerosis diagnosis using multivariable logistic regression with adjustment for relevant clinical characteristics. Results: Overall, the mean (SD) age was 58.6 (13.7) years; 67.6% of patients were male; and 63.2% were on antihypertensive drugs. The median estimated glomerular filtration rate (eGFR) was 43.8 mL/min/1.73 m2 and the median proteinuria was 0.5 g/day. Of the 891 patients, 497 (55.8%) had a clinical diagnosis discordant with pathological nephrosclerosis diagnosis, with chronic nephritic syndrome being the most common (> 75%) discordant clinical diagnosis. After multivariable adjustment, age (odds ratio 1.34, [95% confidence interval, 1.16–1.55], per 10 years increase), eGFR (1.10 [1.00–1.21], per 10 mL/min/1.73 m2 increase), and proteinuria (1.20 [1.03–2.16], per 1 g/day decrease) were found to be significantly associated with the clinicopathological discordance. Conclusions: Patients with older age, higher eGFR, and lower proteinuria had significantly higher likelihood of being clinically diagnosed with other glomerular disease in patients with biopsy-proven nephrosclerosis. Our findings highlight the heterogeneous clinical phenotypes of nephrosclerosis and suggest the need for continuous improvement of clinical diagnostic accuracy as well as for wider kidney biopsy indications for nephrosclerosis.
KW - Clinical diagnosis
KW - Discordance
KW - Japan Renal Biopsy Registry (J-RBR)
KW - Nephrosclerosis
KW - Pathological diagnosis
KW - Renal biopsy
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U2 - 10.1007/s10157-021-02161-1
DO - 10.1007/s10157-021-02161-1
M3 - Article
C2 - 34812966
AN - SCOPUS:85119667685
SN - 1342-1751
JO - Clinical and Experimental Nephrology
JF - Clinical and Experimental Nephrology
ER -