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Iohexol plasma clearance for measuring glomerular filtration rate in clinical practice and research: a review. Part 1: How to measure glomerular filtration rate with iohexol?

Permanent lenke
https://hdl.handle.net/10037/10555
DOI
https://doi.org/10.1093/ckj/sfw070
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article.pdf (801.7Kb)
Main article (PDF)
Dato
2016-08-23
Type
Journal article
Tidsskriftartikkel
Peer reviewed

Forfatter
Delanaye, Pierre; Ebert, Natalie; Melsom, Toralf; Gasperi, Flavia; Mariat, Christophe; Cavalier, Etienne; Björk, Jonas; Christensson, Anders; Nyman, Ulf; Porrini, Esteban; Remuzzi, Giuseppe; Ruggenenti, Piero; Schaeffner, Elke; Soveri, Inga; Sterner, Gunnar; Eriksen, Bjørn Odvar; Bäck, Sten-Erik
Sammendrag
While there is general agreement on the necessity tomeasure glomerular filtration rate (GFR) inmany clinical situations, there is less agreement on the bestmethod to achieve this purpose.As the gold standardmethod for GFR determination, urinary (or renal) clearance of inulin, fades into the background due to inconvenience and high cost, a diversity of filtrationmarkers and protocols compete to replace it. In this review, we suggest that iohexol, a non-ionic contrast agent, is most suited to replace inulin as the marker of choice for GFR determination. Iohexol comes very close to fulfilling all requirements for an ideal GFRmarker in terms of low extra-renal excretion, low protein binding and in being neither secreted nor reabsorbed by the kidney. In addition, iohexol is virtually non-toxic and carries a low cost. As iohexol is stable in plasma, administration and sample analysis can be separated in both space and time, allowing access to GFR determination across different settings. An external proficiency programme operated by Equalis AB, Sweden, exists for iohexol, facilitating interlaboratory comparison of results. Plasma clearance measurement is the protocol of choice as it combines a reliable GFR determination with convenience for the patient. Single-sample protocols dominate, butmultiple-sample protocolsmay bemore accurate in specific situations. In lowGFRs one ormore late samples should be included to improve accuracy. In patients with large oedema or ascites, urinary clearance protocols should be employed. In conclusion, plasma clearance of iohexol may well be the best candidate for a common GFR determination method.
Beskrivelse
Published version. Source at http://dx.doi.org/10.1093/ckj/sfw070
Forlag
Oxford University Press
Sitering
Delanaye, P. et.al.: Iohexol plasma clearance for measuring glomerular filtration rate in clinical practice and research: a review. Part 1: How to measure glomerular filtration rate with iohexol? . Clinical Kidney Journal. 2016;9(5):682-699
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  • Artikler, rapporter og annet (klinisk medisin) [1974]

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