Detection of renal injury following primary coronary intervention among st-segment elevation myocardial infarction patients: Doubling the incidence using neutrophil gelatinase-associated lipocalin as a renal biomarker

Lior Lupu, Keren Lee Rozenfeld, David Zahler, Samuel Morgan, Ilan Merdler, Moshe Shtark, Ilana Goldiner, Shmuel Banai, Yacov Shacham

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Background: A subgroup of patients with acute kidney injury (AKI) do not fulfil the functional criteria for AKI diagnosis but show elevated levels of new biomarkers reflecting tubular injury, suggesting that these patients suffer “subclinical AKI”. We investigated the incidence and possible implications of “subclinical AKI”, compared to no and clinical AKI among ST elevation myocardial infarction patients (STEMI) treated with primary coronary intervention (PCI). Methods: We included 223 patients with STEMI treated with PCI. Neutrophil gelatinase-associated lipocalin (NGAL) was used as a marker of renal tubular damage in the absence of functional AKI, with NGAL levels ≥100 ng/mL suggesting subclinical AKI. Patients were assessed for the occurrence of in-hospital adverse outcomes. Results: Of the study patients, 45 (25%) had subclinical AKI. These patients were more likely to have left ventricular ejection fraction ≤45% (33% vs. 23%. p = 0.01), in-hospital adverse outcomes (73% vs. 48%; p = 0.005), and a combination of the two. The multivariate regression model demonstrated that subclinical AKI was independently associated with in-hospital adverse outcomes (OR 3.71, 95% CI 1.30–10.62, p = 0.02). Conclusions: Subclinical AKI is common among STEMI patients and is independently associated with adverse outcomes, even in the absence of functional AKI.

Original languageEnglish
Article number2120
JournalJournal of Clinical Medicine
Volume10
Issue number10
DOIs
StatePublished - 14 May 2021
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

  • Neutrophil gelatinase-associated lipocalin
  • Renal injury
  • ST-segment elevation myocardial infarction

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