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Kidney Int Rep. 2021 Mar 31;6(6):1622-1628. doi: 10.1016/j.ekir.2021.03.886. eCollection 2021 Jun.

Comparison of Plasma Clearance With Early-Compartment Correction Equations and Urinary Clearance in High GFR Ranges.

Kidney international reports

Pierre Delanaye, Emmanuelle Vidal-Petiot, Thomas Stehlé, Laurence Dubourg, François Gaillard, Gunnar Sterner, Christine A White, Sandrine Lemoine, Vincent Audard, Dominique Prié, Etienne Cavalier, Marie Courbebaisse, Hans Pottel, Martin Flamant

Affiliations

  1. Department of Nephrology-Dialysis-Transplantation, University of Liège (ULiège), Liège, Belgium.
  2. Department of Nephrology-Dialysis-Apheresis, Hôpital Universitaire Carémeau, Nîmes, France.
  3. Assitance Publique-Hopitaux de Paris (AP-HP), Department of Physiology, FHU APOLLO, Hôpital Bichat and Inserm U1149, Université de Paris, Paris, France.
  4. Assistance Publique des Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri-Mondor, Service de Néphrologie et Transplantation, Univ Paris Est Créteil, INSERM U955, Institut Mondor de Recherche Biomédicale (IMRB), Créteil, France.
  5. Néphrologie, Dialyse, Hypertension artérielle et Exploration fonctionnelle rénale, Groupement Hospitalier Edouard Herriot, Hospices Civils de Lyon, Lyon, France.
  6. Assitance Publique-Hopitaux de Paris (AP-HP), Hopital Bichat, Nephrology department, Université de Paris and INSERM U1149, Paris, France.
  7. Department of Nephrology, Malmö University Hospital, Malmö, Sweden.
  8. Department of Medicine, Queen's University, Kingston, ON, Canada.
  9. Faculté de santé de l'université de Paris, hôpital Necker Enfants Malades GHU Centre-Université de Paris AP-HP, INEM INSERM U1151, Paris, France.
  10. Department of Clinical Chemistry, University of Liège (ULiège), Liège, Belgium.
  11. Physiology Department, Georges Pompidou European Hospital, Assistance Publique, Hôpitaux de Paris, Université de Paris, INSERM U1151-CNRS UMR8253, Paris, France.
  12. Department of Public Health and Primary Care, KU Leuven Campus Kulak Kortrijk, Kortrijk, Belgium.

PMID: 34169202 PMCID: PMC8207320 DOI: 10.1016/j.ekir.2021.03.886

Abstract

INTRODUCTION: Glomerular filtration rate (GFR) is measured from the late plasma disappearance curve of an exogenous tracer, after correction for the early decay-corresponding to the distribution of the tracer-using various equations. These equations display the highest discrepancies in the GFR range above 90 ml/min per 1.73 m

METHODS: In patients with mGFR >90 ml/min per 1.73 m

RESULTS: In 438 participants (median age 41 [39-42] years, 43% women), the median urinary clearance was 100.8 (94.7-112.6) ml/min per 1.73 m

CONCLUSION: The BM and JBM equations displayed the best overall performances to correct for the early disappearance curve. Results of these equations should be interpreted with caution, especially in the highest GFR range.

© 2021 International Society of Nephrology. Published by Elsevier Inc.

Keywords: 51Cr-EDTA; glomerular filtration rate; inulin; iohexol

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