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Am J Cardiol. 2012 Jan 1;109(1):19-25. doi: 10.1016/j.amjcard.2011.07.062. Epub 2011 Oct 4.

Comparison of acute coronary syndrome in patients receiving versus not receiving chronic dialysis (from the Global Registry of Acute Coronary Events [GRACE] Registry).

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University of Michigan, Ann Arbor, USA.


Patients with end-stage renal disease commonly develop acute coronary syndromes (ACS). Little is known about the natural history of ACS in patients receiving dialysis. We evaluated the presentation, management, and outcomes of patients with ACS who were receiving dialysis before presentation for an ACS and were enrolled in the Global Registry of Acute Coronary Events (GRACE) at 123 hospitals in 14 countries from 1999 to 2007. Of 55,189 patients, 579 were required dialysis at presentation. Non-ST-segment elevation myocardial infarction was the most common ACS presentation in patients receiving dialysis, occurring in 50% (290 of 579) of patients versus 33% (17,955 of 54,610) of those not receiving dialysis. Patients receiving dialysis had greater in-hospital mortality rates (12% vs 4.8%; p <0.0001) and, among those who survived to discharge, greater 6-month mortality rates (13% vs 4.2%; p <0.0001), recurrent myocardial infarction (7.6% vs 2.9%; p <0.0001), and unplanned rehospitalization (31% vs 18%; p <0.0001). The outcome in patients receiving dialysis was worse than that predicted by their calculated GRACE risk score for in-hospital mortality (7.8% predicted vs 12% observed; p <0.05), 6-month mortality/myocardial infarction (10% predicted vs 21% observed; p <0.05). In conclusion, in the present large multinational study, approximately 1% of patients with ACS were receiving dialysis. They were more likely to present with non-ST-segment elevation myocardial infarction, and had markedly greater in-hospital and 6-month mortality. The GRACE risk score underestimated the risk of major events in patients receiving dialysis.

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