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Please use this identifier to cite or link to this item: http://hdl.handle.net/10564/3901

Title: Pre-operative proteinuria and post-operative acute kidney injury in noncardiac surgery: the NARA-Acute Kidney Injury cohort study.
Other Titles: 非心臓手術における、術前の蛋白尿と術後急性腎障害の関連: 奈良AKIコホート研究
Authors: Nishimoto, Masatoshi
Murashima, Miho
Kokubu, Maiko
Matsui, Masaru
Eriguchi, Masahiro
Samejima, Ken-ichi
Akai, Yasuhiro
Tsuruya, Kazuhiko
Keywords: acute kidney injury
noncardiac surgery
Issue Date: 4-Dec-2020
Publisher: Oxford University Press
Citation: Nephrology, dialysis, transplantation Vol.35 No.12 p.2111-2116 (2020 Dec)
Abstract: Background: Little is known about the association between pre-operative proteinuria and post-operative acute kidney injury (AKI) in noncardiac surgery. Methods: This is a retrospective cohort study. Adults who underwent noncardiac surgery under general anesthesia from 2007 to 2011 at Nara Medical University Hospital were included. Those with obstetric or urological surgery, missing data for analyses or pre-operative dialysis were excluded. Exposure of interest was pre-operative proteinuria, defined as (+) or more by dipstick test. The outcome variable was post-operative AKI, defined by Kidney Disease: Improving Global Outcomes criteria, within 1 week after surgery. Multivariable logistic regression analyses were performed. Results: Among 5168 subjects, 309 (6.0%) developed AKI. Pre-operative proteinuria was independently associated with post-operative AKI, with an odds ratio (OR) [95% confidence interval (CI)] of 1.80 (1.30-2.51). A sensitivity analysis restricted to elective surgery yielded a similar result. As proteinuria increased, the association with AKI became stronger [OR (95% CI) 1.14 (0.75-1.73), 1.24 (0.79-1.95), 2.75 (1.74-4.35) and 3.95 (1.62-9.62) for urinary protein (+/-), (+), (2+) and (3+), respectively]. Subgroup analyses showed proteinuria was especially associated with post-operative AKI among subjects with renin-angiotensin system inhibitors, other anti-hypertensives, hypoalbuminemia or impaired renal function (P for interaction = 0.05, 0.003, 0.09 or 0.02, respectively). Conclusions: In noncardiac surgery, pre-operative proteinuria was independently associated with post-operative AKI. Subjects with proteinuria should be managed with caution to avoid AKI peri-operatively.
Description: 博士(医学)・甲第777号・令和3年3月15日
© The Author(s) 2019. Published by Oxford University Press on behalf of ERA-EDTA. All rights reserved.
This is a pre-copyedited, author-produced version of an article accepted for publication in Nephrology dialysis transplantation following peer review. The version of record Nephrology Dialysis Transplantation, Volume 35, Issue 12, December 2020, Pages 2111–2116, is available online at: https://doi.org/10.1093/ndt/gfz269.
URI: http://hdl.handle.net/10564/3901
ISSN: 09310509
Academic Degrees and number: 24601A777
Degree-granting date: 2021-03-15
Degree name: 博士(医学)
Degree-granting institutions: 奈良県立医科大学
Appears in Collections:2020年度

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