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Impact of renal insufficiency on mortality in patients with ST-segment elevation myocardial infarction treated with primary percutaneous coronary intervention



Impact of renal insufficiency on mortality in patients with ST-segment elevation myocardial infarction treated with primary percutaneous coronary intervention



Bmc Cardiovascular Disorders 14: 15



Chronic kidney disease is associated with increased risk of mortality. We examined the impact of moderate and severe renal insufficiency (RI) on short- and long-term mortality among unselected patients with ST-segment elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention (PCI). From January 1, 2002 to December 31, 2010 all patients with STEMI treated with primary PCI were identified. The hazard ratio (HR) for death was estimated using a Cox regression model, controlling for potential confounders. RI was defined as creatinine clearance (CrCl) < 60 mL/min (moderate RI: CrCl ≤30 < 60 mL/min and severe RI: CrCl < 30 mL/min). The study cohort consisted of 4,116 patients of whom 898 (21.8%) had RI and 3,218 (78.2%) had a CrCl ≥ 60 mL/min. Compared to patients without RI, patients with RI were older, more often female and more likely to have diabetes mellitus, hypertension and to present with a higher Killip class.Among patients with a preserved kidney function and patients with RI, 30-day all-cause mortality was 3.5% vs. 20.9% (log-rank p < 0.001); 1-year all-cause mortality was 5.7% vs. 29.4% (log-rank p < 0.001); 5-year all-cause mortality was 13.4% vs. 47.4% (log-rank p < 0.001). Moderate and severe RI were associated with higher 1-year mortality compared to patients with a preserved renal function (CrCl ≤30 < 60 mL/min: adjusted HR 2.71 [95% CI 2.09-3.51], p < 0.001), and (CrCl < 30 mL/min: adjusted HR 7.09 [4.82-10.44], p < 0.001). In unselected STEMI patients treated with primary PCI, moderate and severe RI were associated with increased risk of mortality.

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Accession: 053723328

Download citation: RISBibTeXText

PMID: 24506974

DOI: 10.1186/1471-2261-14-15


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