Ren Fail. 2026 Dec;48(1):2666698. doi: 10.1080/0886022X.2026.2666698. Epub 2026 May 6.
ABSTRACT
Acute kidney injury (AKI) is common in patients with acute coronary syndrome (ACS). However, understanding its prevalence, risk factors and prognosis remains incomplete. We identified 21328 patients admitted for chest pain to a regional hospital in 2021; 6685 had confirmed ACS. AKI episodes were identified by the serum creatinine criteria of the Kidney Disease: Improving Global Outcomes (KDIGO) AKI guideline. The rates of recovery and inpatient, 30-day and 90-day mortality rates were analyzed. Multi-variable analysis showed that ACS was independently associated with AKI (adjusted odds ratio [OR] 2.327; 95% confidence interval [CI] 2.130-2.542; p < 0.0001). Subgroup analysis showed that ACS was independently associated with AKI on admission (adjusted OR 2.516, 95% CI 2.305-2.746, p < 0.0001) but not new-onset AKI during hospitalization. Other factors associated with AKI were similar between patients with and without ACS. AKI in patients with ACS had similar rate of recovery as those without ACS (p = 0.4). Multi-variable logistic regression showed that both ACS types in AKI were associated with higher inpatient, 30-day and 90-day mortality rates, and they had a synergistic effect. Other factors associated with inpatient, 30-day and 90-day mortality rates of patients with AKI were similar between patients with and without ACS. We conclude that ACS was associated with a higher incidence of AKI, and the risk was mainly associated with AKI on admission. The recovery rates from AKI were similar between patients with and without ACS, but the presence of AKI and ACS synergistically increased the inpatient, 30-day and 90-day mortality rates.
PMID:42092296 | DOI:10.1080/0886022X.2026.2666698