Acute Kidney Injury

The goal of this observational study is to assess the performance of the multiFlux hemofilterwith regional or systemic anticoagulation during CKRT treatments. The multiFlux hemofilter is a single use device within the extracorporeal blood circuit during extracorporeal blood purification treatments for acute renal replacement therapies.

We hypothesized that in patients undergoing elective hepatobiliary-pancreatic surgery, the group in which anesthesia is induced and maintained with remimazolam during surgery would maintain hemodynamic stability and reduce the incidence of postoperative acute kidney injury compared to propofol. The purpose is to provide practical evidence for perioperative management differentiated from other surgeries for hepatobiliary-pancreatic surgery patients for whom intraoperative fluid therapy is restricted.

The purpose of this study is to determine the effect of a multidisciplinary intervention at care transitions for acute kidney injury survivors on patient-centered outcomes.

This study will enroll adults aged 18 to 80 years diagnosed with sepsis due to a suspected or confirmed bacterial infection, within 7 days of being admitted to the hospital, and who have also developed acute kidney injury within 72 hours of the onset of sepsis. Eligible participants will be randomly assigned to receive either AZD4144 or a placebo intravenously once daily for the number of days specified in the CSP. During this Treatment Period, participants will undergo daily safety monitoring, as well as blood and urine sample collection and other assessments. After the Treatment Period, participants will continue to be monitored for safety and other assessments during each additional day they remain hospitalized (if applicable) as well as during up to 2 follow up visits after discharge. The main goal is to compare specific kidney function measurements between those participants receiving AZD4144 and those receiving the placebo.

This study is to assess the benefits of goal-directed fluid management with ACUMEN in cardiac surgical patients and its impact on cardiac surgery-induced kidney injury.

To verify whether albumin administration to achieve serum concentration above 30g/L (treated group) and its maintenance within plasmatic physiologic range (above 30 g/L) for five days diminishes rate of AKI at Day 7 after liver transplantation as compared to restrained albumin administration (when serum concentration is at 20 g/L or below (control)).

The goal of the BRAVE-HEART study is to learn if an amino acid infusion can reduce the risk of developing acute kidney injury after cardiac surgery in children. The main questions it aims to answer are: 1. Does an amino acid infusion decrease the number of participants with acute kidney injury? 2. Does an amino acid infusion decrease the number of days that participants are on a ventilator after cardiac surgery? Researchers will compare amino acids to a placebo (a look-alike substance that contains no drug) to see if amino acids decrease the number of participants with acute kidney injury. Participants will receive an amino acid or placebo infusion for up to 72 hours starting during cardiac surgery and only while in the operating room or the intensive care unit.

Septic shock is one of the leading causes of death in patients admitted to the intensive care unit (ICU). Acute kidney injury (AKI) occurs in almost 50% of septic patients and is associated with significant mortality. Progression to the last stage (KDIGO stage 3) of AKI is an important step in the disease, as it usually requires initiation of RRT. Renal biomarkers are unable to accurately identify those patients who will progress to severe AKI (KDIGO 3). However, identification of patients at risk of progression to severe AKI could help the clinician to initiate optimal therapy including RRT. A new urine test, the Nephrocheck™ corresponding to the product of the urinary concentrations of 2 markers of renal tubule injury (TIMP2 and IGFBP7) has been validated. The Investigator have already performed two previous studies including septic shock patients (AKICHECK and BIOOCHECK). those previous datas will be reanalysed to examine whether the new urinary biomarkers TIMP2 and IGFBP7 can predict progression within 24 hours and 72 hours from mild and moderate (KDIGO 1 or 2) to severe AKI (KDIGO 3) in patients with septic shock. -All the datas required will be collected from two previous studies (AKICHECK and BIOCHECK) performed in 3 centers: Amiens medical ICU, Melun medico surgical ICU and Montpellier Medical ICU.

Acute kidney injury (AKI) is common in critically ill patients and is frequently associated with fluid overload, which can worsen clinical outcomes. Continuous renal replacement therapy (CRRT) allows fluid removal through net ultrafiltration (UFNET), but some patients develop hemodynamic instability or signs of poor tissue perfusion during this process. The purpose of this prospective observational study is to evaluate tolerance to net ultrafiltration in critically ill patients with AKI receiving CRRT. The study will assess clinical, hemodynamic, ultrasound, perfusion, and biochemical parameters before and during fluid removal to identify factors associated with ultrafiltration intolerance. The investigators hypothesize that alterations in hemodynamic, perfusion, and congestion-related parameters can identify patients at increased risk of ultrafiltration intolerance before the development of overt hypotension. The results may help improve individualized fluid removal strategies and optimize the safety of CRRT in critically ill patients.

This study aims to investigate shorter vs. standard filter lifespans in critically ill patients receiving continuous renal replacement therapy (CRRT) for acute kidney injury (AKI). The aim of this trial is to reliably implement,scheduled filter changes and to investigate whether shorter filter lifetime is associated with a lower incidence in rate of new infections.

To evaluate the percentage of subjects with AKI within 7 days following on-pump cardiac surgery defined by the KDIGO (Kidney Disease: Improving Global Outcomes) criteria: 1. Increase in baseline (pre-surgery) serum creatinine (SCr) by ≥26.5 μmol/L (≥0.3 mg/dL) within 7 days; OR 2. Increase in baseline SCr to ≥1.5 times baseline, which is known or presumed to have occurred within the first 7 days following surgery; OR 3. Urine output \< 0.5 mL/kg/h for \>6 hours.

Nearly one in ten people who are hospitalized in Canada develop a complication with sudden loss of kidney function, called acute kidney injury (AKI). AKI may lead to other severe health problems after discharge home, such as kidney failure requiring dialysis treatment, heart failure, heart attacks, stroke, and even premature death. Discharge from hospital to home can be a difficult transition where there are often gaps in identification, communication, care coordination, education, and planning of care for AKI. The study team will co-design and evaluate a tailored post-discharge care plan that is based on the risk of later kidney problems and uses currently available, yet untapped digital innovation to improve the health and experience of people with AKI. This study will be built into Alberta's new Epic Systems based provincial electronic health record (EHR). The plan is to use digital tools in the EHR to identify all people in Alberta hospitals that have had an AKI event and are at increased risk of long-term complications. Half will randomly be assigned to receive a tailored care plan based on their risk at hospital discharge while the other half will receive care as it is currently provided by their healthcare team. The electronic health system will automatically calculate a patient's risk and report this risk in their chart along with recommendations for care. The study team includes patients, healthcare providers, and health system decision makers needed to co-develop the proposed strategy and introduce the changes needed to deliver this intervention. The investigators will study whether this strategy can reduce health problems that may happen after AKI including death, chronic kidney disease (CKD), kidney failure, heart attacks, and stroke. The investigators will also determine if the approach improves patient experience during the transition from hospital to home. This study has the potential to revolutionize how we care for people that leave hospital after having AKI.

This study aims to evaluate the incidence of acute kidney injury (AKI) among patients presenting with acute upper gastrointestinal bleeding (UGIB) at Sohag University Hospitals, and to identify predictors associated with renal impairment in these patients.

The goal of this clinical trial is to learn if adding the iron-binding drug MEX-CD1 to dialysis fluid can help remove excess iron in adults with sepsis-associated acute kidney injury (AKI) requiring dialysis who are in the intensive care unit (ICU). The main questions it aims to answer are: Does adding MEX-CD1 to the dialysis fluid increase the amount of iron removed during dialysis? Is using MEX-CD1 in dialysis fluid safe for patients? Participants will: Be adults in the ICU with sepsis-associated AKI who need continuous dialysis (renal replacement therapy) Receive two 24-hour dialysis sessions: one with standard dialysis fluid and one with dialysis fluid containing MEX-CD1 Serve as their own control, meaning they will receive both treatments Researchers will measure: The amount of iron removed in the dialysis waste fluid (primary outcome) Blood levels of iron Changes in other trace elements Markers of inflammation and oxidative stress Safety outcomes up to 28 days after treatment This is a pilot study being done at a single hospital in France.

This prospective observational study aims to evaluate renal perfusion in adult patients undergoing elective minimally invasive abdominal surgery. Renal perfusion will be assessed using two non-invasive monitoring techniques: Doppler ultrasonography-derived Renal Resistive Index (RRI) and Near-Infrared Spectroscopy (NIRS)-derived renal regional oxygen saturation (rSO₂). Measurements will be obtained at predefined perioperative time points, including after induction of anesthesia, during pneumoperitoneum, before extubation, and during the early postoperative period. Perioperative changes in renal perfusion parameters will be analyzed and correlated with clinical variables such as intra-abdominal pressure, pneumoperitoneum duration, hemodynamic parameters, fluid administration, urine output, and postoperative renal function. The study also aims to investigate the relationship between intraoperative renal perfusion changes and the development of postoperative acute kidney injury. The findings may contribute to improved perioperative monitoring and optimization of renal perfusion during minimally invasive abdominal surgery.

This multicenter, randomized, open-label, active-controlled, parallel-group trial will evaluate the efficacy and safety of nafamostat mesylate anticoagulation compared with regional citrate anticoagulation in adult patients with sepsis-associated acute kidney injury requiring continuous renal replacement therapy. Eligible participants will be randomized in a 1:1 ratio to receive either nafamostat mesylate or regional citrate anticoagulation during CRRT. The primary outcome is MAKE30, a composite of all-cause mortality, new or ongoing renal replacement therapy, or persistent renal dysfunction within 30 days after randomization. Secondary outcomes include filter lifespan, CRRT-free days, 30-day all-cause mortality, renal replacement therapy status, persistent renal dysfunction, ICU and hospital mortality, length of stay, CRRT duration, major bleeding, new bloodstream infection during ICU stay, SOFA score, number of filters used, and protocol-defined safety outcomes.

Calculous anuria caused by obstructing upper ureteral stones in a solitary functioning kidney is a urological emergency requiring urgent decompression. Both retrograde JJ ureteral stenting and percutaneous nephrostomy are commonly used emergency drainage methods. However, limited evidence is available regarding whether the initial drainage method affects subsequent definitive flexible ureteroscopy/retrograde intrarenal surgery outcomes. This multicenter prospective randomized controlled trial will compare emergency JJ ureteral stent drainage versus percutaneous nephrostomy drainage in adult patients presenting with calculous anuria due to a single upper ureteral stone in a solitary functioning kidney. After renal functional improvement, clinical stabilization, and appropriate urine culture management, all participants will undergo standardized definitive flexible ureteroscopy/retrograde intrarenal surgery. The study will assess renal functional recovery, first-session surgical success, stone-free rate, operative parameters, complications, and microbiological outcomes.

Acute calculous anuria is a urological emergency caused by ureteral stone obstruction in a solitary functioning kidney or bilateral ureteral obstruction. Urgent decompression of the upper urinary tract is required to restore urine drainage and prevent further renal impairment. This prospective randomized double-blind controlled trial will evaluate whether intravesical aminophylline can facilitate urgent retrograde ureteral stenting in adult patients with acute calculous anuria due to ureteral stones. Eligible patients will be randomly assigned to receive either intravesical aminophylline diluted in normal saline or placebo saline before attempted retrograde Double-J ureteral stent placement. The primary outcome is technical success, defined as successful placement of a Double-J ureteral stent across the obstructing stone without the need for percutaneous nephrostomy. Secondary outcomes include stenting time, intraoperative complications, renal function recovery, postoperative pain, analgesic requirement, and the need for alternative drainage.

The goal of this clinical trial is to learn whether different ways of providing information and follow-up support after acute kidney injury, also called AKI, can improve care transitions for adults being discharged from the hospital. AKI is a sudden decrease in kidney function that can occur during a hospital stay. The main questions this study aims to answer are: * Does an AKI discharge summary template improve communication about AKI after hospital discharge? * Does a chat-based educational messaging program improve patient understanding of AKI and support follow-up care after hospital discharge? * Researchers will compare usual care, an AKI discharge summary template, a chat-based educational messaging program, and the combination of the discharge summary template plus chat-based messaging. Researchers will compare four groups: * Usual care * An AKI discharge summary template * A chat-based educational messaging program * Both the AKI discharge summary template and the chat-based educational messaging program Participants will complete questionnaires at the start of the study and about 4 weeks after hospital discharge. Participants will also receive a brief phone call about 3 months after discharge, and the research team will review their medical record for information about follow-up care, lab testing, emergency department visits, and hospital readmissions.

This is a Phase 2, dose-ranging, double-blind, double-dummy, placebo-controlled, randomized study preceded by an open label safety run-in, in patients at high risk for Cardiac Surgery Associated - Acute Kidney Injury (CSA-AKI) following coronary artery bypass graft (CABG), valve surgery, aortic surgery, or a combination of the above, involving cardiopulmonary bypass (CPB). Subjects are eligible for screening if they are scheduled for non-emergent CABG, valve surgery, surgery of the ascending part of the aorta, or a combination of the above, involving CPB, within 4 weeks after screening. In addition, subjects are eligible if AKI risk factors are present (at screening): a. If isolated surgery (CABG, single valve surgery, or of the ascending part of the aorta surgery) is scheduled, at least two AKI risk factors should be present b. If combined surgery is scheduled, at least one AKI risk factor should be present Risk factors for AKI are defined below: • Chronic kidney disease (CKD) stage III • Diabetes mellitus on pharmacological treatment • Confirmed diagnosis of hypertension • Documented history of Chronic Heart Failure with New York Heart Association (NYHA) class III or higher * Left ventricular ejection fraction (LVEF) ≤40% * Peripheral vascular disease defined as one or more of the following: claudication, carotid occlusion or \>50% stenosis, amputation for arterial disease, previous or planned intervention on the abdominal aorta, limb arteries or carotids. * Stroke/transient ischemic attack (TIA) defined as sudden onset of focal or global brain, spinal cord, or retinal vascular damage, resulting in symptoms and signs of acute nervous system defects, which is associated with cerebral circulation disorders * Documented atrial fibrillation (AF) on the ECG performed at the screening visit * Anemia with hemoglobin ≤11 g/dL at any time during the 3-month period before or at the time of screening * Body Mass Index (BMI) ≥ 30 kg/m2 * Age ≥70 years at the time of screening The first dose of Investigational Medicinal Product (IMP: R2R01 or Placebo) will be administered subcutaneously (SC) the day before surgery at 06:00 PM (+/- 30 min); the second dose will be administered SC on the day of surgery between 07:00 and 08:00 AM when the surgery is scheduled for the morning, or between 11:00 AM and 12:00 PM when the surgery is scheduled for the afternoon; subsequent doses will be administered SC every 24 hours (+/- 90 min.) starting 24 hours after the second dose, and will continue to be administered until postoperative Day 5 or discharge, whichever occurs first. The follow-up period extends until postoperative Day 30. The study consists of: A. An Open-Label Safety Run-In Part, followed by B. A Double-Blind, Placebo-Controlled, Randomized Part A. An Open-Label Safety Run-In Part The first 10 subjects will be treated with R2R01 5.0 mg SC to ascertain its safety in this population. The Safety Run-In part will be run at the San Raffaele Hospital in Milan (PI Dr. Landoni). Data collected will include but will not be limited to: (1) detailed hemodynamic parameters; (2) use of vasopressors and/or inotropic agents during surgery and in the postoperative period; (3) incidence, severity, and relationship of adverse events (AEs), including serious adverse events (SAEs); (4) postoperative clinical course; (5) available PK data. A Scientific Review Committee (SRC), consisting of three CSA-AKI experts and at least one medical representative of the Sponsor, will review the data from the 5.0 mg dose cohort (open-label Part), based on the safety and available pharmacokinetic data collected from the 10 enrolled patients through postoperative Day 7 or discharge, whichever occurs first. If the SRC agrees to proceed with the 5.0 mg dose, enrollment will open to the randomized part B of the study. If instead, the SRC determines that the 5.0 mg dose is not appropriate, a new dose (i.e., 2.5 mg) will be selected by the SRC for evaluation in 10 additional subjects enrolledin the open-label safety run-in part. Upon completion of the Open-Label Safety Run-In Part, and once the SRC has determined the appropriate R2R01 dose(s) to be tested, enrollment will open to the Double-Blind, Placebo-Controlled, Randomized Part. B. Double-Blind, Placebo-Controlled, Randomized Part Approximately 430 patients will be randomly assigned in a 1:1:1 manner to receive one of the two doses of R2R01or placebo. At randomization, patients will be stratified by presence of CKD stage III (strata: eGFR 59-30 ml/min/1.73m2 vs. eGFR ≥60 ml/min/1.73m2). The randomized part will be conducted at all investigational sites. AKI will be staged according to KDIGO as follows: Stage 1: increase in SCr ≥0.3 mg/dL or an increase in serum creatinine ≥1.5-fold to 2-fold from baseline. Stage 2: incrincrease in SCr \>2-fold to 3-fold from baseline. Stage 3: increase in SCr \>3-fold or SCr ≥4.0 mg/dl or initiation of renal replacement therapy (RRT)

This is a multinational, prospective, observational study designed to characterize patient demographics, prescription parameters, and process measures of continuous renal replacement therapy (CRRT) in intensive care units (ICUs) worldwide. The study aims to examine similarities and differences in CRRT practices and outcomes among critically ill adult patients across a global network of medical centers. The goal is to develop a large, comprehensive repository of data on CRRT practices and outcomes. This repository will enable characterization of variation in standard CRRT practices across medical centers. Natural variability in practice patterns-both between and within centers-will provide an opportunity to compare outcomes associated with different approaches and to generate high-quality preliminary data to inform future interventional trials. Primary Objective \- To describe global patient characteristics, CRRT modalities, and clinical outcomes among patients receiving CRRT. Secondary Objectives * To compare clinical outcomes across geographic regions and CRRT modalities. * To identify patient-level and practice-level predictors of outcomes. * To assess the impact of comorbid conditions (e.g., diabetes mellitus) on CRRT outcomes. Exploratory Objectives * To evaluate long-term renal outcomes and patient-reported quality of life. * To explore health economics and resource utilization related to CRRT. Study Population All patients receiving CRRT as part of routine clinical care in the ICU at participating centers will be eligible for inclusion. Data Collection The study will support an epidemiological assessment of patients undergoing CRRT, including, but not limited to, demographics, underlying disease states, severity of illness, physiological support, indications for CRRT, and clinical outcomes. Outcomes of interest include ICU and hospital mortality, ICU and hospital length of stay, and renal recovery.

This is a prospective, multi-center, randomized effectiveness trial of the CardioGard Embolic Protection Cannula in high-risk valve surgery patients.

The BRACKETS pilot study is a multicentre, prospective, randomized controlled trial of prophylactic preoperative tranexamic acid (TXA) versus placebo and, using a partial factorial design, of prophylactic preoperative desmopressin versus placebo.

This investigator-initiated, pragmatic trial evaluates whether displaying a machine learning (ML)- derived perioperative AKI risk score-alone or paired with an interruptive Best/Our Practice Advisory (BPA/OPA)-improves kidney-protective care and reduces kidney injury after non-obstetric surgery at UCSF. Approximately 75-100 attending anesthesiologists (clusters) are randomized 1:1:1 to: (a) Control (risk score hidden), (b) Score Only (visible preoperative AKI risk probability with passive KDIGO bundle recommendation), or (c) Score + BPA (visible risk plus interruptive KDIGO prompt for high-risk patients). CRNAs/residents follow their attending' s assignment. Adult inpatients (age ≥18) with expected overnight stay and eGFR ≥15 mL/min/1.73 m² are included; obstetrics, chronic dialysis, and kidney transplant patients are excluded. The underlying preoperative model was prospectively validated at UCSF and outperforms anesthesiologist risk estimation reported in the literature. The model was reviewed and approved by the AI Oversight Committee at UCSF. Primary endpoint is the continuous change in serum creatinine (mg/dL) from baseline to POD 1-2. Secondary outcomes include KDIGO-defined AKI, adherence to bundle elements (hemodynamics, balanced fluids, nephrotoxin avoidance, glycemic control), intraoperative hypotension time, fluid volumes, nephrotoxin exposure, perioperative hyperglycemia, length of stay, unplanned ICU transfer, readmission, dialysis, and in-hospital mortality. Data are obtained from the EHR; analysts are blinded. No direct subject interaction is planned; the investigators will request a waiver of patient consent. The study aims to demonstrate that ML-enabled, workflow-embedded decision support can safely and feasibly improve guideline concordant care and decrease early postoperative kidney injury.

In patients requiring renal replacement therapy (RRT) in the intensive care unit (ICU), continuous techniques are predominantly using due to better hemodynamic tolerance. The most employed techniques in ICU are continuous venovenous hemodiafiltration (CVVHDF) and continuous venovenous hemodialysis (CVVHD). To our knowledge, there are no prospective studies comparing the efficiency of these two techniques with the same dose of dialysis (and the same filter). In the CompEER study, we aim to compare the efficiency of CVVHD and CVVHDF on urea reduction rate in intensive care patients with acute kidney injury. The research hypothesis is that CVVHD citrate technique is as effective as CVVHDF heparin technique for urea reduction and provides prolonged and stable clearance, facilitating antibiotic management during RRT.