Evaluation of estimated glomerular function (eGFR) versus creatinine clearance (CrCl) to predict acute kidney injury when using zoledronate for the treatment of osteoporosis

Author(s):  
M. Schini ◽  
N. Peel ◽  
L. Toronjo-Urquiza ◽  
E. Thomas ◽  
S. Salam ◽  
...  
2016 ◽  
Vol 56 (4) ◽  
pp. 230
Author(s):  
Meta Herdiana Hanindita ◽  
Riskky Vitria Prasetyo ◽  
Ninik Asmaningsih Soemyarso ◽  
I Ketut Alit Utamayasa ◽  
Paul Tahalele

Background Acute kidney injury (AKI) is still diagnosed by measuring the estimated creatinine clearance (eCCl), despite the fact that it may not change until 50% or more of kidney function has been lost. AKI after cardiac surgery is related to prolonged intensive care, decreased quality of life, and increased long term mortality. Neutrophil gelatinase-associated lipocalin (NGAL) represents an early biomarker of AKI, which may be useful for assessing AKI in cardiac patients.Objective To determine the validity of urinary and plasma NGAL as biomarkers for AKI in children after cardiac surgery.Methods Subjects were children who underwent cardiac surgery in Dr. Soetomo Hospital, Surabaya, Indonesia from August 2013 to January 2014. Serial urine and blood samples were analyzed for NGAL before surgery, as well as at 2h, 4h, 12h, and 24h after surgery. The AKI was established based on pRIFLE criteria. Estimated creatinine clearance (eCCl) was calculated from the estimated glomerular filtration rate (eGFR), according to age by the traditional Schwartz formula. Serum creatinine was assayed by the Jaffe method before surgery, as well as at 12h, 24h, 48h, and 72h after surgery.Results Of 20 subjects, 5 developed AKI. Urinary and plasma NGAL increased markedly at 2h postoperatively, as compared to eGFR which showed a rise at 12-48 h after cardiac surgery. Analysis of 2h post-operative urinary NGAL at a cut off value of 11.270ng/mL yielded an area under the curve (AUC) of 1.00 (95%CI 2.63 to 12.13), with sensitivity and specificity of 100% each for AKI. In addition, 2h post-operative plasma NGAL at a cut off value of 8.385 ng/mL yielded an AUC of 1.00 (95%CI 3.71 to 12.15) with sensitivity and specificity of 100% each for AKI.Conclusion Urinary and plasma NGAL are valid as early biomarkers for AKI in children after cardiac surgery.


Hypertension ◽  
2012 ◽  
Vol 60 (suppl_1) ◽  
Author(s):  
Duska Dragun ◽  
Uwe Hoff ◽  
Maximilian Blum ◽  
Gordana Bubalo ◽  
Mandy Fechner ◽  
...  

Females are naturally protected against ischemia/reperfusion (I/R)-induced acute kidney injury (AKI) in various clinical and experimental settings. However, the underlying mechanisms are unknown. We hypothesized that female protection may be conferred by enhanced production of cytochrome P450 (CYP)-dependent epoxyeicosatrienoic acids (EETs) that promote vasodilation as well as antiinflammatory and antiapoptotic pathways in the kidney. To test this hypothesis, we first analyzed the renal CYP-eicosanoid profile by liquid chromatography tandem mass spectrometry in male and female Lewis rats. Ischemia was induced through 45 min of left renal vessel clamping after right nephrectomy (n=6-8 per group). In non-ischemic controls, male and female kidneys stored almost identical amounts of EETs as well as 20-hydroxyeicosatetraenoic acid (20-HETE), both predominantly esterified into phospholipids, under basal non-ischemic conditions. 45 min of ischemia induced a massive release of EETs from membrane stores in females but not males. The free renal EET-levels reached 70.2±20.1 in females compared to only 4.6±1.3 ng/g in males. After ischemia, the ratio of free EETs to free 20-HETE was about 1:1 in females and 1:3 in males. Next, we proved the functional importance of EETs in renal protection by pretreating males with a synthetic EET-agonist (12-HUDE) and females with a selective EET-antagonist (14,15-EEZE-mSI). As analyzed two days after reperfusion, the EET-agonist protected males against loss of creatinine clearance (1.03±0.18 vs. 0.26±0.02 ml/min, p<0.01 vs. vehicle, compared to 1.28±0.06 ml/min in sham control). Females were rendered susceptible to I/R-injury by the EET-antagonist (creatinine clearance: 0.25±0.05 vs. 0.67±0.04; p<0.01 vs. vehicle, compared to 0.81±0.04 ml/min in sham control). Changes in inflammatory cell infiltration and tubular apoptosis paralleled these effects on renal function. Our results indicate that female rats are protected against renal I/R-injury by enhanced ischemia-induced EET-release and demonstrate that renal protection can be transferred to males using synthetic EET-agonists.


2018 ◽  
Vol 71 (4) ◽  
pp. 1921-1927 ◽  
Author(s):  
Carolina Ferreira Vasco ◽  
Mirian Watanabe ◽  
Cassiane Dezoti da Fonseca ◽  
Maria de Fátima Fernandes Vattimo

ABSTRACT Objective: To evaluate the antioxidant action of N-acetylcysteine and diosmin-hesperidin in an experimental model of sepsis-induced acute kidney injury in rats. Methods: The study used 20 Wistar adult male rats divided into the following groups: control (laparotomy with no induction of abdominal sepsis), sepsis (experimental model of sepsis with cecal ligation and puncture), N-acetylcysteine + sepsis and diosmin-hesperidin + sepsis. The evaluation contemplated physiological parameters (temperature, glycemia, and average blood pressure), kidney function (creatinine clearance), oxidative stress (urinary peroxides) and kidney histology. Results: The animals submitted to cecal ligation and puncture (sepsis) presented lower body temperature, lower average blood pressure, reduced creatinine clearance and increased urinary hydrogen peroxide levels. Treatment with diosmin-hesperidin improved kidney function and led to a reduction in the excretion of oxidative metabolites. Conclusion: The present study highlighted the protective antioxidant action of diosmin-hesperidin in the experimental model of sepsis-induced acute kidney injury.


Critical Care ◽  
2014 ◽  
Vol 18 (Suppl 1) ◽  
pp. P385
Author(s):  
P Timmermans ◽  
J Gunst ◽  
G Van den Berghe ◽  
M Schetz

2014 ◽  
Vol 2 (02) ◽  
pp. 60-65 ◽  
Author(s):  
Girish Gopal

Background: Acute kidney injury (AKI) is a common consequence of perinatal asphyxia, occurring in upto 56% of these neonates. It is important to recognize AKI in asphyxiated neonates to facilitate administration of appropriate fluids and electrolytes in order to improve their outcome. Objectives: To determine the incidence of AKI in asphyxiated neonates and to correlate the severity and type of AKI with Apgar score and severity of hypoxic ischemic encephalopathy (HIE). Methods: 75 neonates were enrolled – 50 asphyxiated and 25 healthy neonates. Renal functions were assessed using urine output, urine microscopy, biochemical parameters and sonography. The values obtained were correlated with the severity of HIE. Neonates with AKI were managed as per unit protocol. Results: Of the 50 asphyxiated neonates, 32 (64%) had AKI: 25 (78.12 %) neonates with pre-renal AKI and the remaining 7 (21.88 %) with intrinsic AKI. Out of the 32 asphyxiated neonates with AKI, 12 (37.5%) had oliguric AKI, while the remaining 20 (62.5%) had non-oliguric AKI. Levels of blood urea and serum creatinine were significantly higher in asphyxiated neonates as compared to healthy controls (p 0.001). Biochemical derangements correlated well with the severity of HIE and Apgar scores. Serum sodium and creatinine clearance showed significantly different values in asphyxiated babies compared to controls. There was no significant difference in the urine ouput in the control and study group. Sonographic abnormalities were seen most often in oliguric babies, and indicated bad prognosis. Mortality was higher in babies with oliguric AKI. Conclusions: Perinatal asphyxia is an important cause of neonatal AKI. Majority of the babies had non-oliguric AKI and responded well to fluid challenge. Abnormalities in the renal function correlates well with the severity of HIE. Intrinsic AKI, oliguria, hyponatremia, reduced creatinine clearance and abnormal sonographic scan suggest bad prognosis in neonatal AKI secondary to perinatal asphyxia.


2018 ◽  
Vol 8 (3) ◽  
pp. 217-227
Author(s):  
Ali Amiri ◽  
Reza Ghanavati ◽  
Hassan Riahi Beni ◽  
Seyyed Hashem Sezavar ◽  
Mehrdad Sheykhvatan ◽  
...  

Background: Finding patients at risk of developing contrast-induced acute kidney injury (CI-AKI) is important because of its associated complications. In the present study, the contribution of different variables, such as the presence of metabolic syndrome (MetS), the volume creatinine clearance (V/CrCl) ratio, the iodine-dose (I-dose)/CrCl ratio, or hypertension, to CI-AKI was evaluated. Methods: A total of 255 patients undergoing elective coronary angiography with or without intervention were enrolled and divided into a MetS and a control group. All patients were assessed for the development of CI-AKI after the procedures. Results: CI-AKI occurred in 39.23% (51 of 130) of the MetS patients and 14.4% (18 of 125) of the control group (p < 0.001). The multivariable regression model showed that male sex and the use of statins decreased the risk of CI-AKI, and high triglyceride levels, I-dose/CrCl > 0.52, MetS, CrCl ≤60 mL/min, and age ≥70 years increased the risk of CI-AKI, independent of confounding factors. The difference in the mean V/CrCl ratio was statistically significant between patients who developed CI-AKI and those who did not show renal impairment (2.36 ± 1.35 vs. 1.43 ± 0.89, respectively; p < 0.001). The ROC curve analysis of I-dose/CrCl determined the best cutoff value for patients with and those without MetS as 0.51 and 0.63, with a sensitivity value of 68 and 72% and a specificity value of 73 and 74%, respectively. Conclusions: We showed that MetS is a strong risk factor for CI-AKI in nondiabetic patients undergoing elective coronary interventions; and the I-dose/CrCl ratio is a strong predictor of CI-AKI in these patients. We suggest that clinicians identify MetS patients and calculate their I-dose/CrCl ratio before coronary interventions.


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