The prognostic impact of in-hospital worsening of renal function in patients with acute coronary syndrome.Int J Cardiol. 2013 Aug 10; 167(3):866-70.IJ
BACKGROUND
Renal impairment is strongly linked to adverse cardiovascular (CV) events. Baseline renal dysfunction is a strong predictor of CV mortality and morbidity in patients admitted with acute coronary syndrome (ACS). However, the prognostic importance of worsening renal function (WRF) in these patients is not well characterized.
METHODS
ACS patients enrolled in the SPACE (Saudi Project for Assessment of Coronary Events) registry who had baseline and pre-discharge serum creatinine data available were eligible for this study. WRF was defined as a 25% reduction from admission estimated glomerular filtration rate (eGFR) within 7 days of hospitalization. Baseline demographics, clinical presentation, therapies, and in-hospital outcomes were compared.
RESULTS
Of the 3583 ACS patients, WRF occurred in 225 patients (6.3%), who were older, had more cardiovascular risk factors, were more likely to be female, have past vascular disease, and presented with more non-ST-segment elevation myocardial infarction than patients without WRF (39.5% vs. 32.8%; p=0.042). WRF was associated with an increased risk of in-hospital death, heart failure, cardiogenic shock, and stroke. After adjusting for potential confounders, WRF was an independent predictor of in-hospital death (adjusted odd ratio 28.02, 95% CI 13.2-60.28, p<0.0001). WRF was more predictive of mortality than baseline eGFR.
CONCLUSION
These results indicate that WRF is a powerful predictor for in-hospital mortality and CV complications in ACS patients.
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