Low perfusion pressure is associated with renal tubular injury in infants undergoing cardiac surgery with cardiopulmonary bypass: A secondary analysis of an observational study.

Details

Serval ID
serval:BIB_57A0AAA76AEA
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Low perfusion pressure is associated with renal tubular injury in infants undergoing cardiac surgery with cardiopulmonary bypass: A secondary analysis of an observational study.
Journal
European journal of anaesthesiology
Author(s)
Bojan M., Basto Duarte M.C., Lopez V., Tourneur L., Vicca S., Froissart M.
ISSN
1365-2346 (Electronic)
ISSN-L
0265-0215
Publication state
Published
Issued date
08/2018
Peer-reviewed
Oui
Volume
35
Number
8
Pages
581-587
Language
english
Notes
Publication types: Journal Article ; Observational Study ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
Earlier work on adults undergoing surgery with cardiopulmonary bypass suggests that there is a close relationship between the lower limit of the cerebral and renal autoregulation pressures. Although cerebral autoregulation during bypass in infants has been extensively investigated, the impact of bypass on kidney function is not well known. It is, nevertheless, acknowledged that the main pathophysiological process involved in cardiac surgery-related kidney damage is tubular injury, and that urine neutrophil gelatinase-associated lipocaline (uNGAL) is a reliable biomarker of injury.
To identify the most predictive bypass variable for the measurement of renal injury, its threshold value and the most predictive time below that threshold.
Observational study linking electronically recorded bypass perfusion pressure and oxygen delivery rate with intra-operative uNGAL excretion. Variations in bypass variables were accounted for by their excursions below several thresholds.
French tertiary referral paediatric cardiac centre.
A total of 72 infants in whom uNGAL was measured within 1 h of bypass.
None.
Renal injury, identified by a high creatinine normalised uNGAL concentration (>21.2 μg mmol).
At the end of bypass, 43.75% of infants had high uNGAL. A more than 40% pressure drop below the normal age-standardised mean arterial pressure was associated with high uNGAL. Receiver operating curve [interquartile range] areas were 0.626 [0.501 to 0.752] for a more than 40% drop, and 0.679 [0.555 to 0.804] for a more than 50% drop. A more than 40% pressure drop for 19.5 min provided a 0.65 negative predictive value for high uNGAL, and a more than 50% pressure drop for 5.4 min provided a 0.67 negative predictive value. The link between uNGAL and oxygen delivery rate was negligible.
Maintaining the perfusion pressure above 60% of the normal age-standardised mean arterial pressure may provide an effective renal protective strategy.
Registered on October 11, 2010, ClinicalTrials.gov Identifier: NCT01219998.
Keywords
Acute Kidney Injury/physiopathology, Cardiopulmonary Bypass, Female, Humans, Infant, Kidney/blood supply, Kidney/physiopathology, Male, Postoperative Complications/physiopathology, Regional Blood Flow/physiology, Risk Factors
Pubmed
Web of science
Create date
15/02/2018 21:07
Last modification date
20/08/2019 15:11
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