A1 Refereed original research article in a scientific journal
Novel renal markers for the assessment of renal integrity in patients undergoing knee arthroplasty - a pilot study
Authors: Piirainen Annika, Huopio Jukka, Kokki Hannu, Holopainen Anu, Pajunen Teemu, Pulkki Kari, Kokki Merja
Publisher: SpringerOpen
Publication year: 2018
Journal: Journal of Experimental Orthopaedics
Journal name in source: Journal of experimental orthopaedics
Journal acronym: J Exp Orthop
Volume: 5
Issue: 1
ISSN: 2197-1153
DOI: https://doi.org/10.1186/s40634-018-0159-z
Web address : https://jeo-esska.springeropen.com/articles/10.1186/s40634-018-0159-z
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/39297451
The feasibility of novel kidney injury biomarkers in consecutive patients having total knee arthroplasty with local infiltration analgesia was evaluated.\nWe enrolled 30 patients scheduled for elective unilateral total knee arthroplasty. Paired plasma and urine samples were taken before surgery and at 4 h, 24 h and 48 h after surgery to measure creatinine, cystatin C, neutrophil gelatinase associated lipocalin, kidney injury molecule-1, interleukin-18 and liver-type fatty acid-binding protein.\nAt baseline, 13 subjects had normal kidney function, 15 had mild and two had moderate kidney failure evaluated by calculated glomerular filtration rate. None of the subjects had all measured novel renal markers below proposed cut-off concentrations. Altogether 28/30 subjects had one (n = 3), two (n = 7) or three (n = 18) plasma neutrophil gelatinase associated lipocalin values above normal. In seven of these 28 subjects plasma creatinine, calculated glomerular filtration rate and plasma cystatin C were within the reference values. Five subjects had a low urine output, < 0.5 mL/h, indicating transient acute kidney injury, four of these had high plasma neutrophil gelatinase associated lipocalin and one high plasma cystatin C.\nIn the present study plasma neutrophil gelatinase associated lipocalin was elevated in most subjects with total knee arthroplasty and local infiltration analgesia as a marker of possible renal proximal tubular injury. Five subjects had transient low urine output, but none developed renal deterioration requiring treatment.\nBACKGROUND\nMETHODS\nRESULTS\nCONCLUSIONS
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