Single spot albumin to creatinine ratio: A simple marker of long-term prognosis in non-ST segment elevation acute coronary syndromes.

Autor:	Higa CC; Coronary Care Unit, Department of Internal Medicine, Hospital Alemán, Buenos Aires, Argentina. chiga@hospitalaleman.com., Novo FA, Nogues I, Ciambrone MG, Donato MS, Gambarte MJ, Rizzo N, Catalano MP, Korolov E, Comignani PD
Jazyk:	angličtina
Zdroj:	Cardiology journal [Cardiol J] 2016; Vol. 23 (3), pp. 236-41. Date of Electronic Publication: 2015 Oct 27.
DOI:	10.5603/CJ.a2015.0075
Abstrakt:	Background: Microalbuminuria is a known risk factor for cardiovascular morbidity and mortality suggesting that it should be a marker of endothelial dysfunction. Albumin to creatinine ratio (ACR) is an available and rapid test for microalbuminuria determination, with a high correlation with the 24-h urine collection method. There is no prospective study that evaluates the prognostic value of ACR in patients with non ST-segment elevation acute coronary syndromes (NSTE-ACS). The purpose of our study was to detect the long-term prognostic value of ACR in patients with NSTE-ACS. Methods: Albumin to creatinine ratio was estimated in 700 patients with NSTE-ACS at admission. Median follow-up time was 18 months. The best cutoff point of ACR for death or acute myocardial infarction was 20 mg/g. Twenty-two percent of patients had elevated ACR. Results: By multivariable Cox regression analysis, ACR was an independent predictor of the clinical endpoint: odds ratio 5.8 (95% confidence interval [CI] 2-16), log-rank 2 p < 0.0001 in a model including age > 65 years, female gender, diabetes mellitus, creatinine clearance, glucose levels at admission, elevated cardiac markers (troponin T/CK-MB) and ST segment depression. The addition of ACR significantly improved GRACE score C-statistics from 0.69 (95% CI 0.59-0.83) to 0.77 (95% CI 0.65-0.88), SE 0.04, 2 p = 0.03, with a good calibration with both models. Conclusions: Albumin to creatinine ratio is an independent and accessible predictor of long-term adverse outcomes in NSTE-ACS, providing additional value for risk stratification.
Databáze:	MEDLINE
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