Evidence map›Paper›PMID 42776136›Full record

ArticleBrazilian journal of cardiovascular surgery2026

Postoperative Acute Kidney Injury in Cardiovascular Surgery Patients with Prolonged Intensive Care Unit Stay: Impact on Mortality and Outcomes.

Bedih Balkan, Engin Ihsan Turan, Ahmet Said Dündar, Lokman Yalçın

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Article in Brazilian journal of cardiovascular surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Bedih BalkanDepartment of Anesthesiology and Reanimation, Intensive Care, Kanuni Sultan Süleyman Training and Research Hospital, Health Sciences University, Istanbul, Turkiye.ORCID 0000-0003-3510-6991
Engin Ihsan TuranDepartment of Anesthesiology and Reanimation, Kanuni Sultan Süleyman Training and Research Hospital, Health Sciences University, Istanbul, Turkiye.ORCID 0000-0001-7447-5074
Ahmet Said DündarDepartment of Internal Medicine, Kanuni Sultan Süleyman Training and Research Hospital, Health Sciences University, İstanbul, Turkiye.ORCID 0000-0001-9922-313X
Lokman YalçınDepartment of Cardiovascular Surgery, Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital, Istanbul, Türkiye.ORCID 0000-0002-4395-7852

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate the association between postoperative acute kidney injury (AKI) and outcomes in adults undergoing cardiovascular surgery who required a prolonged intensive care unit (ICU) stay.

methodsWe conducted a retrospective cohort study of consecutive cardiovascular surgery patients with ICU stay ≥ 72 hours. AKI was defined and staged using creatinine-based Kidney Disease: Improving Global Outcomes (KDIGO) criteria. The primary outcome was in-hospital mortality. Secondary outcomes were time to extubation, ICU days until ward transfer, and perioperative transfusion exposure (red blood cells/fresh frozen plasma/platelet/apheresis); initiation of renal replacement therapy was assessed exploratorily. Multivariable logistic regression examined the association between AKI and mortality, adjusting for age, sex, baseline renal function/chronic kidney disease (estimated glomerular filtration rate category), hypertension, diabetes, chronic obstructive pulmonary disease, ejection fraction (or Age Creatinine Ejection Fraction score), procedure type (coronary artery bypass grafting/valve/combined), cardiopulmonary bypass and cross-clamping times, transfusions, and post-cardiopulmonary bypass vasoactive/inotropic use where available.

resultsAKI was frequent after cardiovascular surgery and was independently associated with higher in-hospital mortality in adjusted analyses. Patients with AKI also had longer time to extubation, greater transfusion requirements, and prolonged ICU stay, with a stepwise worsening across KDIGO stages. Findings were consistent in sensitivity analyses. Incomplete urine-output data were acknowledged as a limitation, as oliguria forms part of KDIGO definitions.

conclusionAmong cardiovascular surgery patients with prolonged ICU stay, postoperative AKI is a strong predictor of in-hospital mortality and adverse resource-related outcomes. Emphasis on prevention, early detection, and optimized perioperative management may improve prognosis in this high-risk population.

Indexed as

Acute Kidney InjuryCardiovascular Surgical ProceduresPostoperative ComplicationsAgedFemaleHospital MortalityHumansIntensive Care UnitsLength of StayMaleMiddle AgedRetrospective StudiesRisk FactorsTime FactorsTreatment OutcomeCardiac (Use in Combination)Dialysis)FailureKidney (Renal FunctionPostoperative Care.

Identifiers

PMID42776136
PMCPMC13581271

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.