Outcome and causes of renal deterioration evaluated by serial cystatin C measurements in acute coronary syndrome patients: results from the PLATelet inhibition and patient Outcomes (PLATO) study

BACKGROUND: To investigate if ticagrelor treatment and other clinical characteristics were associated with increased cystatin C concentrations and if a deterioration in estimated renal function was associated with worse outcome in patients with acute coronary syndromes (ACS). METHODS: Plasma cystati...

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Bibliographic Details
Main Authors: Åkerblom, Axel (Author) , Katus, Hugo (Author)
Format: Article (Journal)
Language:English
Published: 2012
In: American heart journal
Year: 2012, Volume: 164, Issue: 5, Pages: 728-734
ISSN:1097-6744
DOI:10.1016/j.ahj.2012.08.017
Online Access:Verlag, Volltext: http://dx.doi.org/10.1016/j.ahj.2012.08.017
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Author Notes:Axel Akerblom, Lars Wallentin, Agneta Siegbahn, Richard C. Becker, Andrzej Budaj, Jay Horrow, Steen Husted, Hugo Katus, Marc J. Claeys, Robert F. Storey, Nils Asenblad, and Stefan K. James

MARC

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245 1 0 |a Outcome and causes of renal deterioration evaluated by serial cystatin C measurements in acute coronary syndrome patients  |b results from the PLATelet inhibition and patient Outcomes (PLATO) study  |c Axel Akerblom, Lars Wallentin, Agneta Siegbahn, Richard C. Becker, Andrzej Budaj, Jay Horrow, Steen Husted, Hugo Katus, Marc J. Claeys, Robert F. Storey, Nils Asenblad, and Stefan K. James 
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520 |a BACKGROUND: To investigate if ticagrelor treatment and other clinical characteristics were associated with increased cystatin C concentrations and if a deterioration in estimated renal function was associated with worse outcome in patients with acute coronary syndromes (ACS). METHODS: Plasma cystatin C concentrations were determined within 24 hours of admission (baseline), at discharge, 1 month, and 6 months in the PLATO trial. The changes over time in relation to randomized treatment were analyzed by analysis of covariance. C-statistics and the relative Integrated Discrimination Improvement of the cystatin C concentrations regarding the primary outcome (cardiovascular death or myocardial infarction) was evaluated by multivariable analysis including background characteristics and biomarkers: N-terminal-pro-B-type natriuretic peptide and Troponin I. RESULTS: Mean cystatin C concentrations in 2133 ticagrelor- and 2162 clopidogrel-treated patients were at baseline (0.86 mg/L and 0.86 mg/L), discharge (1.01 mg/L and 0.98 mg/L) (P < .0005), 1 month (1.00 mg/L and 0.98 mg/L) (P = .12), and 6 months (1.00 mg/L and 0.99 mg/L) (P = .17), respectively. Age, heart failure, and type of ACS were major determinants of the cystatin C concentration. c Statistics and the relative Integrated Discrimination Improvement of the primary outcome for the baseline cystatin C concentration were 0.687 and 5.2%, compared to 0.684 and 4.5% at discharge (n = 4034) and 0.693 and 5.1% at one month (n = 3096), respectively. CONCLUSIONS: Mean cystatin C concentrations increased in ACS patients, most importantly determined by age. The initial greater increase in ticagrelor-treated patients was not sustained over time. Risk prediction did not improve with serial measurements of renal markers. 
650 4 |a Acute Coronary Syndrome 
650 4 |a Adenosine 
650 4 |a Aged 
650 4 |a Analysis of Variance 
650 4 |a Biomarkers 
650 4 |a Cystatin C 
650 4 |a Female 
650 4 |a Humans 
650 4 |a Kidney 
650 4 |a Kidney Function Tests 
650 4 |a Male 
650 4 |a Middle Aged 
650 4 |a Platelet Aggregation Inhibitors 
650 4 |a Purinergic P2Y Receptor Antagonists 
650 4 |a Risk Factors 
650 4 |a Ticlopidine 
650 4 |a Treatment Outcome 
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