Landi A, Branca M, Leonardi S, Frigoli E, Vranckx P, Tebaldi M, Varbella F, Calabró P, Esposito G, Sardella G, Garducci S, Andò G, Limbruno U, Sganzerla P, Santarelli A, Briguori C, Colangelo S, Brugaletta S, Adamo M, Omerovic E, Heg D, Windecker S, and Valgimigli M
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)., Competing Interests: Funding Support and Author Disclosures The trial was sponsored by Società Italiana di Cardiologia Invasiva (a nonprofit organization), which received grant support from The Medicines Company and Terumo. This substudy did not receive any direct or indirect funding. Prof Leonardi has received grants and personal fees from AstraZeneca; and has received personal fees from Daiichi Sankyo, Bayer, Pfizer/Bristol Myers Squibb, ICON, Chiesi, and Novo Nordisk (all outside the submitted work). Prof Vranckx has received personal fees from Bayer, Daiichi Sankyo, and CLS Behring (all outside the submitted work). Dr Tebaldi has received research grants from GADA and Abbott Vascular; and has received personal fees from Abbott (all outside the submitted work). Prof Andò has received personal fees and nonfinancial support from Daiichi Sankyo, Boeringer Ingelheim, and Amgen; and has received personal fees from AstraZeneca, Chiesi, and Biosensors (all outside the submitted work). Dr Brugaletta has received a research grant to the institution from AstraZeneca; has received personal fees from Abbott Vascular (outside the submitted work); and has served as an advisory board member for Boston Scientific, iVascular, and Teleflex. Dr Adamo has received speaker fees from Abbott Vascular and Medtronic (all outside the submitted work). Prof Windecker has received research and educational grants to the institution from Abbott, Amgen, AstraZeneca, Bristol Myers Squibb, Bayer, Biotronik, Boston Scientific, Cardinal Health, Cardiovalve, CSL Behring, Daiichi Sankyo, Edwards Lifesciences, Guerbet, Infraredx, Johnson & Johnson, Medicure, Medtronic, Novartis, Polares, OrPha Suisse, Pfizer, Regeneron, Sanofi, Sinomed, Terumo, and V-Wave; has served as an unpaid advisory board member and/or unpaid member of the steering or executive groups of trials funded by Abbott, Abiomed, Amgen, AstraZeneca, Bayer, Bristol Myers Squibb, Boston Scientific, Biotronik, Cardiovalve, Edwards Lifesciences, MedAlliance, Medtronic, Novartis, Polares, Sinomed, Terumo, V-Wave, and Xeltis (but has not received personal payments from pharmaceutical companies or device manufacturers); and is a member of the steering or executive committee groups of several investigator-initiated trials that receive funding from industry without impact on his personal remuneration. Prof Valgimigli has received grants and personal fees from Abbott, Terumo, and AstraZeneca; has received personal fees from Chiesi, Bayer, Daiichi Sankyo, Amgen, Alvimedica, Biosensors, and Idorsia; and has received grants from Medicure (outside the submitted work). All other authors have reported that they have no relationships relevant to the contents of this paper to disclose., (Copyright © 2023 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.)