Transient vs In-Hospital Persistent Acute Kidney Injury in Patients With Acute Coronary Syndrome

JACC Cardiovasc Interv. 2023 Jan 23;16(2):193-205. doi: 10.1016/j.jcin.2022.10.009. Epub 2022 Dec 28.

Abstract

Background: The occurrence of acute kidney injury (AKI) among patients with acute coronary syndrome (ACS) undergoing invasive management is associated with worse outcomes. However, the prognostic implications of transient or in-hospital persistent AKI may differ.

Objectives: The aim of this study was to evaluate the prognostic implications of transient or in-hospital persistent AKI in patients with ACS.

Methods: In the MATRIX (Minimizing Adverse Haemorrhagic Events by Transradial Access Site and Systemic Implementation of Angiox) trial, 203 subjects were excluded because of incomplete information or end-stage renal disease, with a study population of 8,201 patients. Transient and persistent AKI were defined as renal dysfunction no longer or still fulfilling the AKI criteria (>0.5 mg/dL or a relative >25% increase in creatinine) at discharge, respectively. Thirty-day coprimary outcomes were the out-of-hospital composite of death, myocardial infarction, or stroke (major adverse cardiovascular events [MACE]) and net adverse cardiovascular events (NACE), defined as the composite of MACE or Bleeding Academic Research Consortium type 3 or 5 bleeding.

Results: Persistent and transient AKI occurred in 750 (9.1%) and 587 (7.2%) subjects, respectively. After multivariable adjustment, compared with patients without AKI, the risk for 30-day coprimary outcomes was higher in patients with persistent AKI (MACE: adjusted HR: 2.32; 95% CI: 1.48-3.64; P < 0.001; NACE: adjusted HR: 2.29; 95% CI: 1.48-3.52; P < 0.001), driven mainly by all-cause mortality (adjusted HR: 3.43; 95% CI: 2.03-5.82; P < 0.001), whereas transient AKI was not associated with higher rates of MACE or NACE. Results remained consistent when implementing the KDIGO (Kidney Disease Improving Global Outcomes) criteria.

Conclusions: Among patients with ACS undergoing invasive management, in-hospital persistent but not transient AKI was associated with higher risk for 30-day MACE and NACE. (Minimizing Adverse Haemorrhagic Events by Transradial Access Site and Systemic Implementation of Angiox [MATRIX]; NCT01433627).

Keywords: acute coronary syndrome; percutaneous coronary intervention; persistent acute kidney injury; transient acute kidney injury.

Publication types

  • Clinical Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acute Coronary Syndrome* / diagnostic imaging
  • Acute Coronary Syndrome* / therapy
  • Acute Kidney Injury* / diagnosis
  • Acute Kidney Injury* / epidemiology
  • Acute Kidney Injury* / etiology
  • Hemorrhage / chemically induced
  • Humans
  • Myocardial Infarction* / etiology
  • Percutaneous Coronary Intervention*
  • Risk Factors
  • Treatment Outcome

Associated data

  • ClinicalTrials.gov/NCT01433627