scholarly journals Sepsis-associated acute kidney injury

2021 ◽  
Vol 17 (6) ◽  
pp. 44-50
Author(s):  
L.A. Maltseva ◽  
L.V. Novytska-Usenko ◽  
V.V. Nykonov ◽  
T.V. Kanchura

Acute kidney injury (AKI) is a condition that develops as a result of a rapid decrease in the glomerular filtration rate, which leads to the accumulation of nitrogenous, including urea and creatinine, and non-nitrogenous metabolic products with electrolytic disorders, impairment of the acid-base balance, and the volume of fluid excreted by the kidneys. Objective: to provide a review of the literature concerning sepsis-associated acute kidney injury. We presented the problems of diagnosis, risk factors, the pathogenesis of sepsis-associated acute kidney injury, as well as to outline terminologically the clinical form of sepsis-associated acute kidney injury: the paradigm shifts from ischemia and vasoconstriction to hyperemia and vasodilation, from acute tubular necrosis to acute tubular apoptosis. Sepsis contributes significantly to the development of AKI: in sepsis, it occurs in 19 % of patients; nevertheless, it is much more frequent in septic shock (45 % of cases), the mortality of individuals with AKI is especially high in non-septic and septic conditions (45 and 73 %, respectively). To effectively diagnose the functional state of the kidneys and conduct nephroprotective therapy, stratification scales for assessing the severity of acute kidney damage are applied, which are based on the determination of plasma creatinine level and urine output: RIFLE (risk, injury, failure, loss of kidney function, and end-stage renal failure), AKIN (Acute Kidney Injury Network), KDIGO (Kidney Disease Improving Global Outcomes); the experts considered KDIGO scale more modern and perfect. It has been found that plasma creatinine is not an early biomarker of AKI that indicates the advisability of using other integral indicators. AKI biomarkers are substances that either participate in the pathological process or witness it allowing diagnose AKI even before an increase in plasma creatinine level. The characteristics of the structure, role of functions of such biomarkers as neutrophil gelatinase-associated lipocalin, cystatin C, interleukin-18, kidney injury molecule-1 and others are given. Intensive care for sepsis-associated acute kidney injury includes the standard therapy corresponding to 2016 Surviving Sepsis Campaign and KDIGO guidelines. Also, the paper focuses on renal replacement therapy (RRT): renal and extrarenal indications for the initiation, factors affecting the initiation of RRT, the timing of initiation, ways of optimization, the timing of RRT discontinuation, recommendations for the dose of RRT, the dose of renal replacement therapy in sepsis-associated AKI, choice of method, advantages and disadvantages of continuous RRT and intermittent hemodialysis, medication support for continuous therapy, the role of hemodialysis machine in the intensive care unit.

Author(s):  
Toby Hoskins ◽  
Brendan Pearmain ◽  
Coralie Carle

There are several methods of renal replacement therapy but none has a definitive survival benefit in patients with acute kidney injury. This article discusses the advantages and disadvantages of continuous and intermittent renal replacement for patients with acute kidney injury.


PLoS ONE ◽  
2022 ◽  
Vol 17 (1) ◽  
pp. e0261958
Author(s):  
Farid Samaan ◽  
Elisa Carneiro de Paula ◽  
Fabrizzio Batista Guimarães de Lima Souza ◽  
Luiz Fernando Cardoso Mendes ◽  
Paula Regina Gan Rossi ◽  
...  

Introduction Multicenter studies involving patients with acute kidney injury (AKI) associated with the disease caused by the new coronavirus (COVID-19) and treated with renal replacement therapy (RRT) in developing countries are scarce. The objectives of this study were to evaluate the demographic profile, clinical picture, risk factors for mortality, and outcomes of critically ill patients with AKI requiring dialysis (AKI-RRT) and with COVID-19 in the megalopolis of São Paulo, Brazil. Methods This multicenter, retrospective, observational study was conducted in the intensive care units of 13 public and private hospitals in the metropolitan region of the municipality of São Paulo. Patients hospitalized in an intensive care unit, aged ≥ 18 years, and treated with RRT due to COVID-19-associated AKI were included. Results The study group consisted of 375 patients (age 64.1 years, 68.8% male). Most (62.1%) had two or more comorbidities: 68.8%, arterial hypertension; 45.3%, diabetes; 36.3%, anemia; 30.9%, obesity; 18.7%, chronic kidney disease; 15.7%, coronary artery disease; 10.4%, heart failure; and 8.5%, chronic obstructive pulmonary disease. Death occurred in 72.5% of the study population (272 patients). Among the 103 survivors, 22.3% (23 patients) were discharged on RRT. In a multiple regression analysis, the independent factors associated with death were the number of organ dysfunctions at admission and RRT efficiency. Conclusion AKI-RRT associated with COVID-19 occurred in patients with an elevated burden of comorbidities and was associated with high mortality (72.5%). The number of organ dysfunctions during hospitalization and RRT efficiency were independent factors associated with mortality. A meaningful portion of survivors was discharged while dependent on RRT (22.3%).


2019 ◽  
Vol 12 (9) ◽  
pp. e228709 ◽  
Author(s):  
Hatem Elabd ◽  
Mennallah Elkholi ◽  
Lewis Steinberg ◽  
Anjali Acharya

The kidney is one of the major organs affected in preeclampsia. There is evidence suggesting a role for excessive complement activation in the pathogenesis of preeclampsia. We describe a case of preeclampsia with severe features, including HELLP syndrome (hemolysis, elevated liver enzymes, low platelets) and acute kidney injury (AKI) that developed following caesarian section. The patient required renal replacement therapy. A trial of daily plasma exchange was not effective. The patient received a single dose of eculizumab, a humanised monoclonal IgG antibody that binds to complement protein C5. One week post administration of eculizumab, there was significant improvement in haematologic, hepatic and renal function. Blood pressure had normalised and renal replacement therapy was discontinued. The use of eculizumab may have contributed to recovery of kidney function further supporting the role of complement activation in the pathogenesis of preeclampsia and associated AKI.


Author(s):  
Sofie A Gevaert ◽  
Eric Hoste ◽  
John A Kellum

Acute kidney injury is a serious condition, occurring in up to two-thirds of intensive care unit patients, and 8.8-55% of patients with acute cardiac conditions. Renal replacement therapy is used in about 1.5-15% of intensive care unit patients. The term cardiorenal syndrome refers to combined heart and kidney failure; three types of acute cardiorenal syndrome have been described: acute cardiorenal syndrome or cardiorenal syndrome type 1, acute renocardiac syndrome or cardiorenal syndrome type 3, and acute cardiorenal syndrome type 5 (cardiac and renal injury secondary to a third entity such as sepsis). Acute kidney injury replaced the previously used term 'acute renal failure' and comprises the entire spectrum of the disease, from small changes in function to the requirement of renal replacement therapy. Not only failure, but also minor and less severe decreases, in kidney function are of clinical significance both in the short and long-term. The most recent definition for acute kidney injury is proposed by the Kidney Disease: Improving Global Outcomes clinical practice guidelines workgroup. This definition is a modification of the RIFLE and AKIN definitions and staging criteria, and it stages patients according to changes in the urine output and serum creatinine (see Tables 68.1 and 68.2). Acute kidney injury is a heterogeneous syndrome with different and multiple aetiologies, often with several insults occurring in the same individual. The underlying processes include nephrotoxicity, and neurohormonal, haemodynamic, autoimmune, and inflammatory abnormalities. The most frequent cause for acute kidney injury in intensive cardiac care patients are low cardiac output with an impaired kidney perfusion (cardiogenic shock) and/or a marked increase in venous pressure (acute decompensated heart failure). Predictors for acute kidney injury in these patients include: baseline renal dysfunction, diabetes, anaemia, and hypertension, as well as the administration of high doses of diuretics. In the intensive cardiac care unit, attention must be paid to the prevention of acute kidney injury: monitoring of high-risk patients, prompt resuscitation, maintenance of an adequate mean arterial pressure, cardiac output, and intravascular volume (avoidance of both fluid overload and hypovolaemia), as well as the avoidance or protection against nephrotoxic agents. The treatment of acute kidney injury focuses on the treatment of the underlying aetiology, supportive care, and avoiding further injury from nephrotoxic agents. More specific therapies have not yet demonstrated efficacy. Renal replacement therapy is indicated in life-threatening changes in fluid, electrolyte, and acid-base balance, but there are also arguments for more early initiation.


2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Jonny Jonny ◽  
Moch Hasyim ◽  
Vedora Angelia ◽  
Ayu Nursantisuryani Jahya ◽  
Lydia Permata Hilman ◽  
...  

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