Acute Kidney Injury After Cardiac Surgery Based on KDIGO Criteria

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

2804 participants

Study Classification

OBSERVATIONAL

Study Start Date

2003-01-31

Study Completion Date

2013-06-30

Brief Summary

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The aim of this study was to apply the acute kidney injury criteria based on KDIGO classification in a population of patients undergoing cardiac surgery \[coronary artery bypass grafting (CABG) or cardiac valve surgery (CVS)\] and evaluate its impact as a predictor of 30-day mortality.

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Detailed Description

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This was a single center study. We evaluated retrospectively patients from the Cardiac Surgery Intensive Care Unit in Hospital de Base, São José do Rio Preto Medical School, São Paulo, Brazil. Demographics, type of surgery, laboratory data and preoperative, perioperative, and postoperative information were retrieved from a prospectively collected database of 2878 patients older than 18 years undergoing isolated CABG (1786) or CVS (1092), from January 2003 to June 2013. After applying the exclusion criteria (51 patients with incomplete data and 23 patients with end-stage kidney disease) we analyzed 2804 patients in total, 1738 (62%) underwent CABG and 1066 (38%) underwent CVS.

Conditions

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Acute Kidney Injury

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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KDIGO 0

Patients with no acute kidney injury after cardiac surgery

No interventions assigned to this group

KDIGO 1

Patients with acute kidney injury KDIGO stage 1 after cardiac surgery (Increase in SCr by ≥ 0.3 mg/dL (≥ 26.5 lmol/L) or 1.5 to 1.9 times baseline)

No interventions assigned to this group

KDIGO 2

Patients with acute kidney injury KDIGO stage 2 after cardiac surgery (2.0 to 2.9 times baseline SCr)

No interventions assigned to this group

KDIGO 3

Patients with acute kidney injury KDIGO stage 3 after cardiac surgery (3.0 times baseline or more; or increase in SCr to ≥ 4.0 mg/dL; or initiation of renal replacement therapy)

No interventions assigned to this group