Estimation of Missing Baseline Serum Creatinine for Acute Kidney Injury Diagnosis in Hospitalized Patients

Nephron ◽  
2020 ◽  
pp. 1-10
Author(s):  
Olga Laszczyńska ◽  
Milton Severo ◽  
Sofia Correia ◽  
Ana Azevedo
Keyword(s):  
Acute Kidney Injury ◽  
Random Forest ◽  
Serum Creatinine ◽  
Kidney Injury ◽  
Hospitalized Patients ◽  
Tertiary Referral Centre ◽  
Baseline Serum ◽  
High Concentrations ◽  
Acute Kidney Injury Diagnosis ◽  
Cr Concentration

<b><i>Introduction:</i></b> In hospitalized patients, information on preadmission kidney function is often missing, impeding timely and accurate acute kidney injury (AKI) detection and affecting results of AKI-related studies. <b><i>Objective:</i></b> In this study, we provided estimates of preadmission serum creatinine (SCr), based on a multivariate linear regression (Model 1) and random forest model (Model 2) built with different parametrizations. Their accuracy for AKI diagnosis was compared with the accuracy of commonly used surrogate methods: (i) SCr at hospital admission (first SCr) and (ii) SCr back-calculated from the assumed estimated glomerular filtration rate of 75 mL/min/1.73 m<sup>2</sup> (eGFR 75). <b><i>Methods:</i></b> From 44,670 unique adult admissions to a tertiary referral centre between 2013 and 2015, we analysed 8,540 patients with preadmission SCr available. To control for differences in characteristics of patients with and without SCr, we used an inverse probability weighting technique. <b><i>Results:</i></b> Estimates of SCr were likely to be higher than true preadmission SCr in a low Cr concentration and undervalued in high concentrations although for Model 2 Complete-SCr these differences were smallest. The true cumulative incidence of AKI was 14.8%. Model 2 Complete-SCr had the best agreement for AKI diagnosis (kappa 0.811, 95% CI 0.787–0.835), while surrogate methods resulted in the lowest agreement: (kappa 0.553, 0.516–0.590) and (0.648, 0.620–0.676) for first SCr and eGFR 75, respectively. <b><i>Conclusions:</i></b> Multivariable imputation of preadmission SCr, taking into account elementary admission data, improved accuracy in AKI diagnosis over commonly used surrogate methods. Random forest-based models can serve as an effective tool in research.

Evaluation of the accuracy of estimated baseline serum creatinine for acute kidney injury diagnosis

2017 ◽  
Vol 22 (2) ◽  
pp. 405-412 ◽  
Author(s):  
Yutaka Hatakeyama ◽  
Taro Horino ◽  
Keitaro Nagata ◽  
Hiromi Kataoka ◽  
Tatsuki Matsumoto ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Serum Creatinine ◽  
Kidney Injury ◽  
Baseline Serum ◽  
Baseline Serum Creatinine ◽  
Acute Kidney Injury Diagnosis

P0199 : Acute kidney injury in cirrhosis: Baseline serum creatinine predicts patient outcomes

2015 ◽  
Vol 62 ◽  
pp. S380 ◽  
Author(s):  
F. Wong ◽  
J.G. O’Leary ◽  
K.R. Reddy ◽  
G. Garcia-Tsao ◽  
M.B. Fallon ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Serum Creatinine ◽  
Patient Outcomes ◽  
Kidney Injury ◽  
Baseline Serum ◽  
Baseline Serum Creatinine

scholarly journals FREQUENCY OF ACUTE KIDNEY INJURY AMONG PATIENTS UNDERGOING CORONARY ANGIOGRAPHY

2021 ◽  
Vol 70 (Suppl-4) ◽  
pp. S828-32
Author(s):  
Sajid Khan ◽  
Abdul Hameed Siddiqui ◽  
Ariz Samin ◽  
Syed Hassan Mustafa ◽  
Akhtar Gul ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Coronary Angiography ◽  
Serum Creatinine ◽  
Study Design ◽  
Kidney Injury ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Baseline Serum ◽  
Control And Prevention

Objective: To determine the frequency of acute kidney injury among patients undergoing coronary angiography. Study Design: Descriptive cross-sectional study. Place and Duration of Study: Department of Cardiology, Hayatabad Medical Complex, Peshawar, from Jan 2018 to Jul 2018. Methodology: This study was conducted in the in the Department of Cardiology, Hayatabad Medical Complex, Peshawar from 22nd Jan 2018 to 22nd Jul 2018. Through a descriptive cross-sectional study design, a total of 116 patients scheduled for coronary angiography were included in the study in a consecutive manner and baseline / follow up serum creatinine was recorded to detect acute kidney injury. Results: In this study 116 patients were included, 61.2% males and 38.8% females. Mean age of the patients was 55.6 years with a standard deviation of 6.6 years. Mean baseline serum creatinine level was 0.9 ± 0.11mg/dl which was 1.5 ± 0.11 48 hours after coronary angiography (p 0.000). AKI was recorded in 19.8% of patients. Conclusion: Acute kidney injury after coronary angiography is not uncommon in our population. More studies are recommended on its risk factors and complications to draw future directions for its control and prevention.

Mo1892 Acute Kidney Injury in Cirrhosis: Baseline Serum Creatinine Predicts Patient Outcomes

2015 ◽  
Vol 148 (4) ◽  
pp. S-1075
Author(s):  
Florence Wong ◽  
Jacqueline G. O'Leary ◽  
K. Rajender Reddy ◽  
Guadalupe Garcia-Tsao ◽  
Michael B. Fallon ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Serum Creatinine ◽  
Patient Outcomes ◽  
Kidney Injury ◽  
Baseline Serum ◽  
Baseline Serum Creatinine

scholarly journals Incidence and Predictors of Acute Kidney Injury Among Women With Severe Pre-eclampsia at Mbarara Regional Referral Hospital

2021 ◽  
Author(s):  
Mariam Hassan ◽  
Roland Mayanja ◽  
Wasswa G.M Ssalongo ◽  
Natumanya Robert ◽  
Lugobe Henry Mark ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Risk Factor ◽  
Serum Creatinine ◽  
Independent Risk Factor ◽  
Statistical Significance ◽  
Kidney Injury ◽  
Referral Hospital ◽  
Chronic Hypertension ◽  
Baseline Serum ◽  
Regional Referral Hospital

Abstract BackgroundThe presence of acute kidney injury (AKI) in pre-eclampsia complicates treatment including; increasing length of hospital stay and a need to access services like dialysis which are largely expensive in resource-limited settings. We aimed to determine incidence and predictors of acute kidney injury among women with severe pre-eclampsia at Mbarara Regional Referral Hospital in southwestern Uganda. MethodsWe carried out a hospital-based prospective cohort study from 16 November 2018 to 18 April 2019, among pregnant women with severe preeclampsia followed up in the hospital. We enrolled 70 mothers with severe pre-eclampsia and eclampsia; we excluded patients with a history of chronic renal disease, chronic hypertension, and gestational hypertension.Data on socio-demographics, laboratory parameters, health system, obstetric and medical factors were collected. Baseline serum creatinine, complete blood count, and CD4 T-cell count were all done at admission (0-hour). Second serum creatinine was done at 48-hours to determine the presence of AKI. AKI was defined as a rise in serum creatinine of 0.3mg/dl or more from the baseline. The proportion of women diagnosed with acute kidney injury among the total number of women with severe pre-eclampsia was reported as incidence proportion. Univariate and multivariate logistic regression was used to establish the association of acute kidney injury and severe pre-eclampsia.ResultsIncidence of acute kidney injury was high (41.4%) among women with severe pre-eclampsia. Antenatal care attendance was protective 0.36 (0.16, 0.80), p<0.013 at bivariate analysis but had no statistical significance at multivariate analysis. Eclampsia was an independent risk factor for acute kidney injury. (aRR 2.74 (1.06, 7.08), P<0. 037.ConclusionThe incidence of acute kidney injury in patients with preeclampsia is high. Eclampsia is an independent risk factor of acute kidney injury.

Definition and Diagnosis of Acute Kidney Injury in Cirrhosis

2015 ◽  
Vol 33 (4) ◽  
pp. 539-547 ◽  
Author(s):  
Florence Wong
Keyword(s):  
Acute Kidney Injury ◽  
Serum Creatinine ◽  
Urine Output ◽  
Negative Impact ◽  
Kidney Injury ◽  
Acute Kidney Injury Network ◽  
Severe Form ◽  
Loss Of Function ◽  
Baseline Serum ◽  
Advanced Cirrhosis

Background: Acute kidney injury (AKI) is a common complication of advanced cirrhosis. Type 1 hepatorenal syndrome is the best-known and most severe form of AKI, and it has a precise definition and a set of specific diagnostic criteria. More recently, it has become recognized that milder degrees of renal dysfunction also have a negative impact on patient outcome in various patient populations. Key Messages: Several definitions and criteria for staging the severity of AKI have been proposed, including the RIFLE (Risk, Injury, Failure, Loss of Function and End-Stage Renal Disease) group, the Acute Kidney Injury Network (AKIN), and the Kidney Disease: Improving Global Outcome (KDIGO) group. All of them incorporate some changes of serum creatinine and urine output in the definition and staging of AKI. The hepatology community has mostly embraced the AKIN diagnostic and staging criteria and has applied them in the prognostication of patients with advanced cirrhosis. However, the AKIN criteria have not been strictly applied in all studies on cirrhosis. This is partly related to the fact that changes in urine output are difficult to assess in advanced cirrhosis, and partly related to the difficulty in defining the baseline serum creatinine from which the change in serum creatinine is calculated. This has led to some confusion in the interpretation of results of the various studies on AKI in cirrhosis. More recently, some investigators have suggested incorporating the AKIN criteria with setting a lower limit of serum creatinine of 1.5 mg/dl in determining the diagnosis and prognosis of AKI in cirrhosis. Conclusions: This is an ongoing debate as to how best to define AKI in cirrhosis. In the near future there should be prospective clinical trials that will clarify which diagnostic and staging criteria of AKI will best serve the cirrhotic population.

Risk of acute kidney injury associated with neuroimaging obtained during triage and treatment of patients with acute ischemic stroke symptoms

2016 ◽  
Vol 8 (12) ◽  
pp. 1231-1234 ◽  
Author(s):  
Shelby L Hall ◽  
Stephan A Munich ◽  
Marshall C Cress ◽  
Leonardo Rangel-Castilla ◽  
Elad I Levy ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Ischemic Stroke ◽  
Serum Creatinine ◽  
Serum Creatinine Level ◽  
Acute Ischemic Stroke ◽  
Creatinine Level ◽  
Kidney Injury ◽  
Vascular Pathology ◽  
Baseline Serum ◽  
Iodinated Contrast

BackgroundCombining non-contrast CT (NCCT), CT angiography (CTA), and CT perfusion (CTP) imaging (referred to as a CT stroke study, CTSS) provides a rapid evaluation of the cerebrovascular axis during acute ischemic stroke. Iodinated contrast-enhanced CT imaging is not without risk, which includes renal injury. If a patient's CTSS identifies vascular pathology, digital subtraction angiography (DSA) is often performed within 24–48 h. Such patients may receive multiple administrations of iodinated contrast material over a short time period.ObjectiveWe aimed to evaluate the incidence of acute kidney injury (AKI) in patients who underwent a CTSS and DSA for evaluation of acute ischemic symptoms or for stroke intervention within a 48 h period between August 2012 and December 2014.MethodsWe identified 84 patients for inclusion in the analysis. Patients fell into one of two cohorts: AKI, defined as a rise in the serum creatinine level of ≥0.5 mg/dL from baseline, or non-AKI. Clinical parameters included pre- and post-imaging serum creatinine level, time between CTSS and DSA, and type of angiographic procedure (diagnostic vs intervention) performed.ResultsFour patients (4.7%) experienced AKI, one of whom had baseline renal dysfunction (defined as baseline serum creatinine level ≥1.5 mg/dL). The mean difference between baseline and peak creatinine values was found to be significantly greater in patients with AKI than in non-AKI patients (1.65 vs −0.09, respectively; p=0.0008).ConclusionsThis study provides preliminary evidence of the safety and feasibility of obtaining CTSS with additional DSA imaging, whether for diagnosis or intervention, to identify possible acute ischemic stroke.

Acute Kidney Injury in Cirrhosis: Baseline Serum Creatinine Predicts Patient Outcomes

2017 ◽  
Vol 112 (7) ◽  
pp. 1103-1110 ◽  
Author(s):  
F Wong ◽  
J G OʼLeary ◽  
K R Reddy ◽  
G Garcia-Tsao ◽  
M B Fallon ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Serum Creatinine ◽  
Patient Outcomes ◽  
Kidney Injury ◽  
Baseline Serum ◽  
Baseline Serum Creatinine
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