Acute Kidney Injury

2010 ◽  
Vol 21 (4) ◽  
pp. 350-356
Author(s):  
Rhonda K. Martin

Acute kidney injury (AKI) is a common disease in the acutely ill patient population, as a singular diagnosis or a complication of sepsis, causing significant mortality and morbidity. Progress in diagnosis, treatment, and research in AKI has been limited by the lack of a universally accepted clinical definition. The clinical definition of AKI onset and progression, early diagnostic indicators, and understanding the unique pathophysiology of AKI are requisite to early treatment and management and ultimately positive patient outcomes. This article reviews the advances in defining and staging AKI on the basis of international consensus statements. An update on the most recent concepts affecting renal pathophysiology in AKI is also presented. Current clinical tools used in diagnosing and monitoring AKI, including the development of renal biomarkers, are discussed.


2020 ◽  
Author(s):  
Aileen Ebadat ◽  
Eric Bui ◽  
Carlos V. R. Brown

Acute renal failure definitions have changed dramatically over the last 5 to 10 years as a result of criteria established through the following consensus statements/organizations: RIFLE (Risk, Injury, Failure, Loss of function, End stage renal disease), AKIN (Acute Kidney Injury Network), and KDIGO (Kidney Disease: Improving Global Outcomes). In 2002, the Acute Dialysis Quality Initiative was tasked with the goal of establishing a consensus statement for acute kidney injury (AKI). The first order of business was to provide a standard definition of AKI. Up to this point, literature comparison was challenging as studies lacked uniformity in renal injury definitions. Implementing results into evidence-based clinical practice was difficult. The panel coined the term “acute kidney injury,” encompassing previous terms, such as renal failure and acute tubular necrosis. This new terminology represented a broad range of renal insults, from dehydration to those requiring renal replacement therapy (RRT). This review provides an algorithmic approach to the epidemiology, pathophysiology, diagnosis, prevention, and management of AKI. Also discussed are special circumstances, including rhabdomyolysis, contrast-induced nephropathy, and hepatorenal syndrome. Tables outline the AKIN criteria, most current KDIGO consensus guidelines for definition of AKI, differential diagnosis of AKI, agents capable of causing AKI, treatment for specific complications associated with AKI, and options for continuous RRT. Figures show the RIFLE classification scheme and KDIGO staging with prevention strategies. This review contains 1 management algorithm, 2 figures, 6 tables, and 85 references. Keywords: Kidney, renal, KDIGO, azotemia, critical, urine, oliguria, creatinine, dialysis



2020 ◽  
Author(s):  
Aileen Ebadat ◽  
Eric Bui ◽  
Carlos V. R. Brown

Acute renal failure definitions have changed dramatically over the last 5 to 10 years as a result of criteria established through the following consensus statements/organizations: RIFLE (Risk, Injury, Failure, Loss of function, End stage renal disease), AKIN (Acute Kidney Injury Network), and KDIGO (Kidney Disease: Improving Global Outcomes). In 2002, the Acute Dialysis Quality Initiative was tasked with the goal of establishing a consensus statement for acute kidney injury (AKI). The first order of business was to provide a standard definition of AKI. Up to this point, literature comparison was challenging as studies lacked uniformity in renal injury definitions. Implementing results into evidence-based clinical practice was difficult. The panel coined the term “acute kidney injury,” encompassing previous terms, such as renal failure and acute tubular necrosis. This new terminology represented a broad range of renal insults, from dehydration to those requiring renal replacement therapy (RRT). This review provides an algorithmic approach to the epidemiology, pathophysiology, diagnosis, prevention, and management of AKI. Also discussed are special circumstances, including rhabdomyolysis, contrast-induced nephropathy, and hepatorenal syndrome. Tables outline the AKIN criteria, most current KDIGO consensus guidelines for definition of AKI, differential diagnosis of AKI, agents capable of causing AKI, treatment for specific complications associated with AKI, and options for continuous RRT. Figures show the RIFLE classification scheme and KDIGO staging with prevention strategies. This review contains 1 management algorithm, 2 figures, 6 tables, and 85 references. Keywords: Kidney, renal, KDIGO, azotemia, critical, urine, oliguria, creatinine, dialysis



2020 ◽  
Author(s):  
Aileen Ebadat ◽  
Eric Bui ◽  
Carlos V. R. Brown

Acute renal failure definitions have changed dramatically over the last 5 to 10 years as a result of criteria established through the following consensus statements/organizations: RIFLE (Risk, Injury, Failure, Loss of function, End stage renal disease), AKIN (Acute Kidney Injury Network), and KDIGO (Kidney Disease: Improving Global Outcomes). In 2002, the Acute Dialysis Quality Initiative was tasked with the goal of establishing a consensus statement for acute kidney injury (AKI). The first order of business was to provide a standard definition of AKI. Up to this point, literature comparison was challenging as studies lacked uniformity in renal injury definitions. Implementing results into evidence-based clinical practice was difficult. The panel coined the term “acute kidney injury,” encompassing previous terms, such as renal failure and acute tubular necrosis. This new terminology represented a broad range of renal insults, from dehydration to those requiring renal replacement therapy (RRT). This review provides an algorithmic approach to the epidemiology, pathophysiology, diagnosis, prevention, and management of AKI. Also discussed are special circumstances, including rhabdomyolysis, contrast-induced nephropathy, and hepatorenal syndrome. Tables outline the AKIN criteria, most current KDIGO consensus guidelines for definition of AKI, differential diagnosis of AKI, agents capable of causing AKI, treatment for specific complications associated with AKI, and options for continuous RRT. Figures show the RIFLE classification scheme and KDIGO staging with prevention strategies. This review contains 1 management algorithm, 2 figures, 6 tables, and 85 references. Keywords: Kidney, renal, KDIGO, azotemia, critical, urine, oliguria, creatinine, dialysis



2018 ◽  
Vol 43 (1) ◽  
pp. 34-44 ◽  
Author(s):  
Eva Rodríguez ◽  
Carlos Arias-Cabrales ◽  
Sheila Bermejo ◽  
Adriana Sierra ◽  
Carla Burballa ◽  
...  


2015 ◽  
Vol 62 ◽  
pp. S380 ◽  
Author(s):  
F. Wong ◽  
J.G. O’Leary ◽  
K.R. Reddy ◽  
G. Garcia-Tsao ◽  
M.B. Fallon ◽  
...  


Author(s):  
Maura Scott ◽  
Grace McCall

Acute kidney injury (AKI) is under-recognised in children and neonates. It is associated with increased mortality and morbidity along with an increased incidence of chronic kidney disease in adulthood. It is important that paediatricians are able to recognise AKI quickly, enabling prompt treatment of reversible causes. In this article, we demonstrate an approach to recognising paediatric AKI, cessation of nephrotoxic medication, appropriate investigations and the importance of accurately assessing fluid status. The mainstay of treatment is attempting to mimic the kidneys ability to provide electrolyte and fluid homeostasis; this requires close observation and careful fluid management. We discuss referral to paediatric nephrology and the importance of long-term follow-up. We present an approach to AKI through case-presentation.



2018 ◽  
Author(s):  
Alice Sabatino ◽  
Giuseppe Regolisti ◽  
Filippo Fani ◽  
Enrico Fiaccadori

Protein-energy wasting (PEW) is particularly common in patients with acute kidney injury (AKI). It is correlated, at least in part, with specific factors of the reduction of renal function and is associated with significant increase in mortality and morbidity. In this clinical condition, the optimal nutritional support remains an open question due to its qualitative composition in terms of macro- and micronutrients. In fact, data on critically ill patients have confirmed that nutritional support targeting the real protein and energy needs is associated with improvement of clinical outcome. However, data available in AKI patients are still scarce. AKI is characterized by increased risk of both under- and overfeeding because of the coexistence of many factors that can influence the evaluation of nutrient needs, such as a rapid change in body weight due to alterations in fluid balance, loss of nutrients during renal replacement therapy (RRT), and the presence of hidden calories in the RRT (ie, calories derived from anticoagulants and/or from solutions used in the different dialysis methods). As AKI comprises a highly heterogeneous group of patients, with oscillatory nutrient needs during patients’ clinical course, nutritional requirements should be frequently reassessed, individualized, and carefully integrated with RRT. Nutrient needs in patients with AKI can be difficult to estimate and should be directly measured, especially in the intensive care unit setting. This review contains 4 figures, 3 tables and 104 references Keywords: Malnutrition In ICU Patients,  Acute Kidney Injury, Nutritional Support, Indirect Calorimetry, Resting Energy Expenditure, Lipid Oxidation Rate, Glucose Oxidation Rate, Micronutrients



2015 ◽  
Vol 148 (4) ◽  
pp. S-1075
Author(s):  
Florence Wong ◽  
Jacqueline G. O'Leary ◽  
K. Rajender Reddy ◽  
Guadalupe Garcia-Tsao ◽  
Michael B. Fallon ◽  
...  


Antioxidants ◽  
2018 ◽  
Vol 7 (8) ◽  
pp. 105 ◽  
Author(s):  
Egor Plotnikov ◽  
Anna Brezgunova ◽  
Irina Pevzner ◽  
Ljubava Zorova ◽  
Vasily Manskikh ◽  
...  

Neonatal sepsis is one of the major causes of mortality and morbidity in newborns, greatly associated with severe acute kidney injury (AKI) and failure. Handling of newborns with kidney damage can be significantly different compared to adults, and it is necessary to consider the individuality of an organism’s response to systemic inflammation. In this study, we used lipopolysaccharide (LPS)-mediated acute kidney injury model to study mechanisms of kidney cells damage in neonatal and adult rats. We found LPS-associated oxidative stress was more severe in adults compared to neonates, as judged by levels of carbonylated proteins and products of lipids peroxidation. In both models, LPS-mediated septic simulation caused apoptosis of kidney cells, albeit to a different degree. Elevated levels of proliferating cell nuclear antigen (PCNA) in the kidney dropped after LPS administration in neonates but increased in adults. Renal fibrosis, as estimated by smooth muscle actin levels, was significantly higher in adult kidneys, whereas these changes were less profound in LPS-treated neonatal kidneys. We concluded that in LPS-mediated AKI model, renal cells of neonatal rats were more tolerant to oxidative stress and suffered less from long-term pathological consequences, such as fibrosis. In addition, we assume that by some features LPS administration simulates the conditions of accelerated aging.



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