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The outcome of neutrophil gelatinase-associated lipocalin-positive subclinical acute kidney injury: a multicenter pooled analysis of prospective studies

  • Michael Haase
  • , Prasad V Devarajan
  • , Anja Haase-Fielitz
  • , Rinaldo Bellomo
  • , Dinna N Cruz
  • , Gebhard Wagener
  • , Catherine Dent Krawczeski
  • , Jay L Koyner
  • , Patrick Murray
  • , Michael Zappitelli
  • , Stuart L Goldstein
  • , Konstantinos Makris
  • , Claudio Ronco
  • , Johannes Karl Martensson
  • , Claes-Roland Martling
  • , Per Venge
  • , Edward Siew
  • , Lorraine B Ware
  • , Talat Alp Ikizler
  • , Peter Rene Mertens

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The aim of this study was to test the hypothesis that, without diagnostic changes in serum creatinine, increased neutrophil gelatinase-associated lipocalin (NGAL) levels identify patients with subclinical acute kidney injury (AKI) and therefore worse prognosis. Background: Neutrophil gelatinase-associated lipocalin detects subclinical AKI hours to days before increases in serum creatinine indicate manifest loss of renal function. Methods: We analyzed pooled data from 2,322 critically ill patients with predominantly cardiorenal syndrome from 10 prospective observational studies of NGAL. We used the terms NGAL(-) or NGAL(+) according to study-specific NGAL cutoff for optimal AKI prediction and the terms sCREA(-) or sCREA(+) according to consensus diagnostic increases in serum creatinine defining AKI. A priori-defined outcomes included need for renal replacement therapy (primary endpoint), hospital mortality, their combination, and duration of stay in intensive care and in-hospital.
Original languageEnglish
Pages (from-to)1752 - 1761
Number of pages10
JournalJournal of the American College of Cardiology
Volume57
Issue number17
DOIs
Publication statusPublished - 2011
Externally publishedYes

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