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Published on: June 11, 2012
Hyperglycemia on Admission Predicts Acute Kidney Failure and Renal Functional Recovery among Inpatients
Yuri Gorelik1,2, Natalie Bloch-Isenberg1,2, Siwar Hashoul2,3
1Department of Medicine D, Rambam Health Care Campus, Haifa 3109601, Israel.
High blood glucose on admission increases risks for hospitalized patients, particularly non-diabetics. This study found hyperglycemia linked to acute kidney injury, kidney function recovery, and mortality, with effects lessening in diabetic individuals.
Area of Science:
- Nephrology
- Endocrinology
- Internal Medicine
Background:
- Hyperglycemia (high blood glucose) is a known risk factor for adverse outcomes in hospitalized patients.
- The impact of admission glucose levels on kidney function changes and clinical outcomes requires further investigation, especially concerning diabetes and baseline kidney function.
- Understanding these associations can inform patient management and improve outcomes.
Purpose of the Study:
- To assess the effect of admission glucose levels on subsequent kidney function (deterioration or improvement) in hospitalized patients.
- To investigate the modifying role of diabetes and baseline kidney function on the relationship between hyperglycemia and clinical outcomes.
- To determine the association between admission glucose levels and outcomes such as acute kidney injury (AKI), acute kidney functional recovery (AKR), and mortality.
Main Methods:
- Retrospective cohort analysis comparing patients with normal versus high glucose levels upon admission.
- Multivariable logistic regression models were used to analyze the association between baseline glucose and renal/clinical outcomes.
- Interaction terms were incorporated to examine the potential modifying effect of diabetes.
Main Results:
- The study included 95,556 inpatients; 16.5% had plasma glucose >180 mg/dL, with 72% being diabetic.
- Higher admission glucose was associated with older age and more comorbidities.
- Rates of AKI, AKR, and mortality were proportional to reduced renal function and nearly doubled in patients with high baseline glucose.
- Multivariable analysis indicated an increasing probability of adverse events with higher glucose, primarily in non-diabetic patients.
Conclusions:
- Hyperglycemia is linked to AKI, AKR, and mortality in non-diabetic inpatients, with risk escalating with illness severity.
- The association between hyperglycemia and adverse outcomes is less pronounced in diabetic patients.
- This suggests that renal derangements in diabetic patients may be more treatable and reversible.
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Acute Kidney Injury VI: Nursing Management
Acute Kidney Injury II: Pathophysiology

