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Acute kidney injury associated with endurance events - Is it a cause for concern? A systematic review

Hodgson, L., Walter, E., Venn, R., Galloway, R., Pitsiladis, Y., Sardat, F. and Forni, L.G. (2017) Acute kidney injury associated with endurance events - Is it a cause for concern? A systematic review BMJ Open Sport and Exercise Medicine, 3 (1), e000093.

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Abstract

A growing body of evidence suggests even small rises in serum creatinine (SCr) are of considerable clinical relevance. Given that participants in endurance events are exposed to potential (repeated) renal insults, a systematic review was undertaken to collate current evidence for acute kidney injury (AKI), complicating such events.


Methods

A systematic review of studies and case reports meeting inclusion criteria on Medline and EMBASE (inception to October 2015). Included: studies with markers of renal function before and after endurance or ultraendurance events; case reports of severe AKI. Two reviewers assessed risk of bias using the Newcastle-Ottawa scale.


Results

Eleven case report publications (n=27 individuals) of severe AKI, were retrieved, with risk factors including systemic illness or nephrotoxic medications usually identified. From 30 studies of endurance and ultraendurance events, mean rise in SCr was 29 (±12.3) mmol/L after marathon or ultramarathon (17 studies, n=568 participants) events. Where follow-up tests were conducted, SCr returned to baseline within 48 hours. Rises in biomarkers suggest potential parenchymal insult, rather than simply muscle breakdown. However, evidence of long-term deleterious effects is lacking.


Conclusions

Raised levels of SCr are reported immediately after endurance events. It is not clear whether this is either clinically significant, or if repeated participation predisposes to long-term sequelae. The aetiology of severe exercise-associated AKI is usually multifactorial, with risk factors generally identified in the rare cases reported. On-site biochemistry, urine analysis and biomarkers of AKI may help identify collapsed runners who are at significant short-term risk and allow suitable follow-up.

Item Type: Article
Divisions : Faculty of Health and Medical Sciences > School of Biosciences and Medicine
Authors :
NameEmailORCID
Hodgson, L.
Walter, E.
Venn, R.
Galloway, R.
Pitsiladis, Y.
Sardat, F.
Forni, L.G.l.forni@surrey.ac.uk
Date : 14 June 2017
DOI : 10.1136/bmjsem-2015-000093
Copyright Disclaimer : This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Depositing User : Diane Maxfield
Date Deposited : 24 Oct 2019 12:12
Last Modified : 24 Oct 2019 12:12
URI: http://epubs.surrey.ac.uk/id/eprint/852724

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