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Published in: BMC Nephrology 1/2022

Open Access 01-12-2022 | Acute Kidney Injury | Research

Limited clinical utility for GWAS or polygenic risk score for postoperative acute kidney injury in non-cardiac surgery in European-ancestry patients

Authors: Daniel B. Larach, Adam Lewis, Lisa Bastarache, Anita Pandit, Jing He, Anik Sinha, Nicholas J. Douville, Michael Heung, Michael R. Mathis, Jonathan D. Mosley, Jonathan P. Wanderer, Sachin Kheterpal, Matthew Zawistowski, Chad M. Brummett, Edward D. Siew, Cassianne Robinson-Cohen, Miklos D. Kertai

Published in: BMC Nephrology | Issue 1/2022

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Abstract

Background

Prior studies support a genetic basis for postoperative acute kidney injury (AKI). We conducted a genome-wide association study (GWAS), assessed the clinical utility of a polygenic risk score (PRS), and estimated the heritable component of AKI in patients who underwent noncardiac surgery.

Methods

We performed a retrospective large-scale genome-wide association study followed by a meta-analysis of patients who underwent noncardiac surgery at the Vanderbilt University Medical Center (“Vanderbilt” cohort) or Michigan Medicine, the academic medical center of the University of Michigan (“Michigan” cohort). In the Vanderbilt cohort, the relationship between polygenic risk score for estimated glomerular filtration rate and postoperative AKI was also tested to explore the predictive power of aggregating multiple common genetic variants associated with AKI risk. Similarly, in the Vanderbilt cohort genome-wide complex trait analysis was used to estimate the heritable component of AKI due to common genetic variants.

Results

The study population included 8248 adults in the Vanderbilt cohort (mean [SD] 58.05 [15.23] years, 50.2% men) and 5998 adults in Michigan cohort (56.24 [14.76] years, 49% men). Incident postoperative AKI events occurred in 959 patients (11.6%) and in 277 patients (4.6%), respectively. No loci met genome-wide significance in the GWAS and meta-analysis. PRS for estimated glomerular filtration rate explained a very small percentage of variance in rates of postoperative AKI and was not significantly associated with AKI (odds ratio 1.050 per 1 SD increase in polygenic risk score [95% CI, 0.971–1.134]). The estimated heritability among common variants for AKI was 4.5% (SE = 4.5%) suggesting low heritability.

Conclusion

The findings of this study indicate that common genetic variation minimally contributes to postoperative AKI after noncardiac surgery, and likely has little clinical utility for identifying high-risk patients.
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Literature
Metadata
Title
Limited clinical utility for GWAS or polygenic risk score for postoperative acute kidney injury in non-cardiac surgery in European-ancestry patients
Authors
Daniel B. Larach
Adam Lewis
Lisa Bastarache
Anita Pandit
Jing He
Anik Sinha
Nicholas J. Douville
Michael Heung
Michael R. Mathis
Jonathan D. Mosley
Jonathan P. Wanderer
Sachin Kheterpal
Matthew Zawistowski
Chad M. Brummett
Edward D. Siew
Cassianne Robinson-Cohen
Miklos D. Kertai
Publication date
01-12-2022
Publisher
BioMed Central
Published in
BMC Nephrology / Issue 1/2022
Electronic ISSN: 1471-2369
DOI
https://doi.org/10.1186/s12882-022-02964-8

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