Original articleAdult cardiacCardiac Surgery-Associated Acute Kidney Injury: A Comparison of Two Consensus Criteria
Section snippets
Patients and Methods
The Northern New England Cardiovascular Disease Study Group was founded in 1987 as a regional voluntary consortium capturing all of the coronary revascularizations and valve procedures in the northern New England area at eight medical centers in the states of Vermont, New Hampshire, and Maine. The group consists of clinicians, hospital administrators, and health care research personnel who seek to continuously improve the quality, safety, effectiveness, and cost of medical interventions in
Results
In general, the patient cohort was predominantly male, 71% had a history of hypertension, 88% had coronary artery disease, 73% had normal or near normal glomerular filtration rate, and 69% underwent CABG surgery alone (Table 2). Acute kidney injury developed in 7,391 patients (30%) using the AKIN criteria, and in 7,730 patients (31%) using the RIFLE criteria (Table 3). While the general classification was similar, the classification of the extent of injury appears to be different. Most patients
Comment
Our study compared the sensitivity and specificity of the AKIN and RIFLE classifications in assessing the presence of AKI and in predicting in-hospital mortality. We found similar rates of AKI as those previously reported by both the AKIN and RIFLE criteria. Additionally, there was no significant difference in prediction of in-hospital mortality between the two classifications. This is the largest study aimed at comparing the two classifications in cardiac surgery patients. However, we confirm
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