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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Arch+Med+Sci
2017 ; 13
(5
): 1111-1120
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Cardiac surgery related cardio-renal syndrome assessed by conventional and novel
biomarkers - under or overestimated diagnosis?
#MMPMID28883853
Biernawska J
; Bober J
; Kotfis K
; Bogacka A
; Barnik E
; ?ukowski M
Arch Med Sci
2017[Aug]; 13
(5
): 1111-1120
PMID28883853
show ga
INTRODUCTION: Serum creatinine is a 'gold standard' criterion of recognizing and
staging of acute kidney injury (AKI) despite it being a suboptimal, delayed
indicator. The interpretation of increased values of biomarkers imposes great
difficulty regarding cardiac surgery procedures performed with cardiopulmonary
bypass and may lead to under- or overestimated diagnosis. The aim of this study
was to evaluate the clinical utility of the sole serum creatinine or urine
neutrophil gelatinase-associated lipocalin (NGAL) concentration used for
identification of patients with AKI after cardiac surgery. MATERIAL AND METHODS:
A prospective observational study was conducted on a group of 88 adult patients
undergoing a coronary artery bypass grafting procedure. Serum creatinine was
evaluated on the day of the operation, and 24 and 48 h post-operatively. Urinary
NGAL concentration was measured: immediately after and one hour after
cardiopulmonary bypass, and 24 h from the beginning of the operation. We assessed
features of kidney injury and 30-day and 5-year mortality. RESULTS: Patients in
the AKI group diagnosed with creatinine level and urine output criteria presented
more advanced age (p = 0.01), higher body mass index (p = 0.01) and preoperative
myocardial infarction (p = 0.02). Elevation of NGAL level was observed in 5 of 13
cases with AKI, based on creatinine criteria and 4 of 75 cases without AKI.
Within 5 years after the surgical procedure the recurrence of renal failure was
36% in the AKI group (with perioperative NGAL elevation in 2 cases only).
CONCLUSIONS: In the cardiac surgery patients the diagnosis of AKI based on sole
serum creatinine or urine NGAL concentration confirmed transient kidney injury.
However, the clinical implications of these findings are insufficient for
prediction of clinical outcome.