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Clinical Trial Summary

Postoperative acute renal failure is a frequent complication after cardiac surgery. The current practice cannot predict Acute Kidney Injuries (AKI) early enough to reduce a significant kidney assault and prevent an organic dysfunction leading to cortical tubular necrosis.

Several recent studies in cardiac surgery have shown that, both sonographic criteria, such as the Renal Resistive Index (IRR) and urinary biomarkers can predict AKI promptly. These urinary biomarkers are the 'tissue inhibitor of metalloproteinases' (TIMP-2) and the 'insulin-like growth factor binding protein' (IGFBP7). These two proteins are sought noninvasively, directly in the urine, within the same test called 'NephroCheckTM'. These markers, ultrasonographic and biologic, have the advantage of being easy to perform, accessible and seem to have both high sensitivity and specificity to predict AKI promptly after cardiac surgery. Thus, the IRR and the NephroCheckTM test could become essential tests to guide clinicians in determining rapidly whether a patient will develop AKI. However, so far, no study has compared these markers yet.

Therefore, the aim of this prospective observational study will be to compare the effectiveness of the IRR with the NephroCheckTM to predict AKI promptly after cardiac surgery. The secondary outcome will be to determine the threshold of these markers from which patients will be likely to develop AKI


Clinical Trial Description

n/a


Study Design

Observational Model: Cohort, Time Perspective: Prospective


Related Conditions & MeSH terms


NCT number NCT02325726
Study type Observational
Source University Hospital, Bordeaux
Contact
Status Completed
Phase N/A
Start date September 2014
Completion date November 2014

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