1. Definition of acute kidney injury impacts prevalence and prognosis in ACS patients undergoing coronary angiography.
- Author
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Weferling M, Liebetrau C, Kraus D, Zierentz P, von Jeinsen B, Dörr O, Weber M, Nef H, Hamm CW, and Keller T
- Subjects
- Acute Coronary Syndrome epidemiology, Acute Kidney Injury chemically induced, Acute Kidney Injury classification, Aged, Aged, 80 and over, Biomarkers blood, Creatinine blood, Female, Germany epidemiology, Glomerular Filtration Rate, Humans, Male, Middle Aged, Predictive Value of Tests, Prevalence, Prospective Studies, Registries, Risk Assessment, Risk Factors, Acute Coronary Syndrome diagnostic imaging, Acute Kidney Injury diagnosis, Acute Kidney Injury epidemiology, Contrast Media adverse effects, Coronary Angiography adverse effects, Terminology as Topic
- Abstract
Background: Development of acute kidney injury (AKI) in invasively managed patients with acute coronary syndrome (ACS) is associated with a markedly increased mortality risk. Different definitions of AKI are in use, leading to varying prevalence and outcome measurements. The aim of the present study is to analyze an ACS population undergoing coronary angiography for differences in AKI prevalence and outcome using four established AKI definitions., Methods: 944 patients (30% female) were enrolled in a prospective registry between 2003 and 2005 with 6-month all-cause mortality as outcome measure. Four established AKI definitions were used: an increase in serum creatinine (sCR) ≥ 1.5 fold, ≥ 0.3 mg/dl, and ≥ 0.5 mg/dl and a decrease in eGFR > 25% from baseline (AKIN 1, AKIN 2, CIN, and RIFLE definition groups, respectively)., Results: AKI rates varied widely between the different groups. Using the CIN definition, AKI frequency was lowest (4.4%), whereas it was highest if the RIFLE definition was applied (13.2%). AKIN 2 displayed a twofold higher AKI prevalence compared with AKIN 1 (10.2% vs. 5.3% (p < 0.001)). AKI was a strong risk factor for mid-term mortality, with distinctive variability between the definitions. The lowest mortality risk was found in the RIFLE group (HR 6.0; 95% CI 3.7-10.0; p < 0.001), whereas CIN revealed the highest risk (HR 16.7; 95% CI 9.9-28.1; p < 0.001)., Conclusion: Prevalence and outcome in ACS patients varied considerably depending on the AKI definition applied. To define patients with highest renal function-associated mortality risk, use of the CIN definition seems to have the highest prognostic relevance.
- Published
- 2021
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