scholarly journals Obesity and recovery from acute kidney injury (Ob AKI): a prospective cohort feasibility study

BMJ Open ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. e024033 ◽  
Author(s):  
Helen L MacLaughlin ◽  
Rochelle M Blacklock ◽  
Kelly Wright ◽  
Gerda Pot ◽  
Satish Jayawardene ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Cohort Study ◽  
Feasibility Study ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Kidney Injury ◽  
Tertiary Hospital ◽  
Study Data ◽  
Inclusion Criteria

ObjectivesTo test the methodology of recruitment, retention and data completeness in a prospective cohort recruited after a hospitalised episode of acute kidney injury (AKI), to inform a future prospective cohort study examining the effect of obesity on AKI outcomes.DesignFeasibility study.SettingSingle centre, multi-site UK tertiary hospital.Participants101 participants (67M; 34F) with a median age of 64 (IQR 53–73) years, with and without obesity, recruited within 3 months of a hospitalised episode of AKI.Outcome measuresFeasibility outcomes were recruitment (>15% meeting inclusion criteria recruited), participant retention at 6 and 12 months (≥80%) and completeness of data collection. Exploratory measures included recovery from AKI (regaining >75% of pre-AKI estimated glomerular filtration rate [eGFR]) at 6 months, development or progression of chronic kidney disease (CKD) (kidney function decrease of ≥25% +  rise in CKD category) at 12 months, and associations with poorer kidney outcomes.Results41% of eligible patients consented to take part, exceeding the target recruitment uptake rate of 15%. Retention was 86% at 6 months and 78% at 12 months; 10 patients died and three commenced dialysis during the study. Data were 90%–100% complete. Median BMI was 27.9 kg/m2 (range 18.1 kg/m2–54.3 kg/m2). 50% of the cohort had stage 3 AKI and 49% had pre-existing CKD. 46% of the cohort met the AKI recovery definition at 6 months. At 12 months, 20/51 patients developed CKD (39%) and CKD progression occurred in 11/49 patients (22%). Post-AKI interleukin-6 and cystatin-C were associated with 12 months decline in eGFR.ConclusionsFeasibility to conduct a long-term observational study addressing AKI outcomes associated with obesity was demonstrated. A fully powered prospective cohort study to examine the relationships between obesity and outcomes of AKI is warranted.

Urinary exosomal CD26 is associated with recovery from acute kidney injury in intensive care units: a prospective cohort study

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Juan Du ◽  
Yihui Li ◽  
Qiang Sun ◽  
Zhihao Wang ◽  
Feng Wang ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Cohort Study ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Kidney Injury ◽  
Prediction Performance ◽  
Control Cohort ◽  
Clinical Factors ◽  
Qilu Hospital ◽  
Major Adverse Kidney Events

Abstract Objectives Currently there is no validated method to predict renal reversal and recovery after acute kidney injury (AKI). As exosomes have the potential for AKI prognosis and CD26 is involved in the mechanisms in AKI, this study aims to investigate whether urinary exosomal CD26 is associated with renal-related outcomes and explore its prospect as a novel prognosis biomarker. Methods This was a single-center, prospective cohort study. A total of 133 AKI patients and 68 non-AKI patients admitted to ICU in Qilu Hospital Shandong University from January 2017 to January 2018. Urine samples were collected at enrollment and the relative expression of CD26 (CD26 percentage) in urinary exosomes was examined, that was then categorized into a low-CD26 level and a high-CD26 level. Results CD26 percentage was significantly lower in the AKI cohort than in the control cohort. Within the AKI cohort, a high-CD26 level was associated with lower incidence of major adverse kidney events within 90 days, but higher incidence of reversal within 28 days. In AKI survivors, a high-CD26 level had a 4.67-, 3.50- and 4.66-fold higher odds than a low-CD26 level for early reversal, recovery and reversal, respectively, after adjustment for clinical factors. Prediction performance was moderate for AKI survivors but improved for non-septic AKI survivors. Conclusions Urinary exosomal CD26 is associated with renal reversal and recovery from AKI and is thus a promising prognosis biomarker.

scholarly journals Prognosis of Acute Kidney Injury and Hepatorenal Syndrome in Patients with Cirrhosis: A Prospective Cohort Study

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Andrew S. Allegretti ◽  
Guillermo Ortiz ◽  
Julia Wenger ◽  
Joseph J. Deferio ◽  
Joshua Wibecan ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Cohort Study ◽  
Prospective Cohort Study ◽  
Acute Tubular Necrosis ◽  
Prospective Cohort ◽  
Hepatorenal Syndrome ◽  
Kidney Injury ◽  
Multicenter Studies ◽  
Urinary Sediment ◽  
Tubular Necrosis

Background/Aims. Acute kidney injury is a common problem for patients with cirrhosis and is associated with poor survival. We aimed to examine the association between type of acute kidney injury and 90-day mortality.Methods. Prospective cohort study at a major US liver transplant center. A nephrologist’s review of the urinary sediment was used in conjunction with the 2007 Ascites Club Criteria to stratify acute kidney injury into four groups: prerenal azotemia, hepatorenal syndrome, acute tubular necrosis, or other.Results. 120 participants with cirrhosis and acute kidney injury were analyzed. Ninety-day mortality was 14/40 (35%) with prerenal azotemia, 20/35 (57%) with hepatorenal syndrome, 21/36 (58%) with acute tubular necrosis, and 1/9 (11%) with other (p=0.04overall). Mortality was the same in hepatorenal syndrome compared to acute tubular necrosis (p=0.99). Mortality was lower in prerenal azotemia compared to hepatorenal syndrome (p=0.05) and acute tubular necrosis (p=0.04). Ten participants (22%) were reclassified from hepatorenal syndrome to acute tubular necrosis because of granular casts on urinary sediment.Conclusions. Hepatorenal syndrome and acute tubular necrosis result in similar 90-day mortality. Review of urinary sediment may add important diagnostic information to this population. Multicenter studies are needed to validate these findings and better guide management.

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