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Coronary heart disease is not significantly linked to acute kidney injury identified using Acute Kidney Injury Group criteria

Authors Yayan J

Received 22 March 2012

Accepted for publication 28 June 2012

Published 10 October 2012 Volume 2012:5 Pages 831—838


Review by Single-blind

Peer reviewer comments 3

Josef Yayan

Department of Internal Medicine, Vinzentius Hospital, Landau, Germany

Background: Patients with unstable angina or myocardial infarction are at risk of acute kidney injury, which may be aggravated by the iodine-containing contrast agent used during coronary angiography; however, the relationship between these two conditions remains unclear.
Objective: The current study investigated the relationship between acute kidney injury and coronary heart disease prior to coronary angiography.
Methods: All patients were evaluated after undergoing coronary angiography in the cardiac catheterization laboratory of the Vinzentius Hospital in Landau, Germany, in 2011. The study group included patients with both acute coronary heart disease and acute kidney injury (as defined according to the classification of the Acute Kidney Injury Group); the control group included patients without acute coronary heart disease. Serum creatinine profiles were evaluated in all patients, as were a variety of demographic and health characteristics.
Results: Of the 303 patients examined, 201 (66.34%) had coronary artery disease. Of these, 38 (18.91%) also had both acute kidney injury and acute coronary heart disease prior to and after coronary angiography, and of which in turn 34 (16.91%) had both acute kidney injury and acute coronary heart disease only prior to the coronary angiography. However, the occurrence of acute kidney injury was not significantly related to the presence of coronary heart disease (P = 0.95, Chi-square test).
Conclusion: The results of this study indicate that acute kidney injury is not linked to acute coronary heart disease. However, physicians should be aware that many coronary heart patients may develop kidney injury while hospitalized for angiography.

Keywords: acute kidney injury, acute coronary heart disease, myocardial infarction, angina pectoris, incidence, association

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