Acute Kidney Injury

This is a multi-center, 1:1 randomized pilot study examining the efficacy and safety of infliximab 5mg/kg x 1 paired with 2 weeks of prednisone 1mg/kg per day for 2 weeks versus standard-of-care glucocorticoid therapy (prednisone 1mg/kg/day x 2 weeks followed by a 4 week taper) on the rate and speed of renal recovery from immune checkpoint inhibitor-associated AKI.

One in three adults over 65 fall annually, with one in five remaining on the floor for greater than one hour, which is referred to as a long lie. Pressure on the National Health Service has resulted in extended stays in the Emergency Department (ED) (sometimes longer than 12 hours) and prolonged ambulance response times. This impacts the older adults who have fallen and remain on the floor. This project aims to develop a risk prediction model (RPM) for use within the ED to understand which older adults (60 years or older) who fall over and remain on the floor for longer than one hour ("long lie") and develop rhabdomyolysis (a serious condition where muscle breaks down and releases substances into the blood that can damage the kidneys) will develop poor outcomes and need admission to hospital for treatment and which patients can be safely discharged home. Aim: To develop a RPM to identify which older adults who have a fall and a long lie and attend the ED develop poor outcomes such as Acute kidney Injury (AKI) \[kidneys suddenly stop working properly\], needing kidney replacement therapy (KRT) \[a treatment that helps kidneys that aren't working properly do their job of cleaning the blood\] and mortality \[death\]. Objectives: 1. Abstract patient level data (e.g. biochemical, demographic, situational, medical history, medication history) from medical records combined with outcomes to understand which variables lead to poor outcomes such as AKI, needing KRT and mortality. 2. Analyse the data using a statistical package (Statistical Package for Social Sciences \[SPSS\]) to develop a RPM with good discriminative abilities \[how well the score can tell high-risk from low-risk patients\]. 3. Demonstrate the ability of the RPM to identify which patients need admission to hospital with treatment and which patients can be safely discharged home.

This pilot study will evaluate the feasibility of using a clinical decision support(CDS) message to support consideration of SGLT2 inhibitor prescribing in patients with type 2 diabetes who recently had acute kidney injury. Participating M Health Fairview primary care clinics will be randomized to either receive the clinical decision support intervention or continue usual care. In intervention clinics, providers or clinic pharmacists will receive a message before a scheduled encounter with an eligible patient. The message is intended to support clinical decision-making about SGLT2 inhibitor use, but prescribing decisions will remain with the patient's usual clinical care team. The study will assess feasibility outcomes, including identification of eligible patients, delivery of clinical decision support (CDS) messages, provider/pharmacist receipt of CDS messages, SGLT2i consideration, SGLT2i prescribing, and availability of follow-up kidney function data in the electronic health record.

Acute kidney injury (AKI) is a frequent complication of critical illness and is associated with increased morbidity and mortality. Early identification of patients at risk of progressing to moderate-to-severe AKI may facilitate closer monitoring and timely implementation of kidney-protective strategies. This prospective observational cohort study will evaluate the predictive performance of the Renal Angina Index (RAI) for the development of Kidney Disease: Improving Global Outcomes (KDIGO) stage 2 or stage 3 AKI in adult intensive care unit patients. Consecutive eligible patients admitted to the participating adult intensive care unit will be enrolled. The RAI will be calculated 24 hours after ICU admission using routinely available clinical characteristics and the change in serum creatinine between ICU admission and 24 hours. The primary outcome will be the development of KDIGO stage 2 or stage 3 AKI during the subsequent 48 hours. AKI staging will incorporate serum creatinine, urine-output, and renal replacement therapy criteria according to KDIGO definitions. The predictive performance of RAI will be evaluated using receiver operating characteristic analysis and the prespecified RAI threshold of ≥10. Secondary outcomes will include 7-day and 30-day intensive care unit mortality, intensive care unit length of stay, and duration of invasive mechanical ventilation.

Obstructive uropathy is a serious complication frequently seen in cancer patients, occurring when urine flow from the kidneys is blocked by tumor compression, invasion, or benign etiologies such as radiation-induced strictures and stones. If left untreated, this blockage leads to hydronephrosis, acute kidney impairment, and interruptions in cancer therapy. When internal ureteral stenting fails or is not possible, percutaneous nephrostomy (PCN), which involves inserting a small drainage tube through the back directly into the renal collecting system, is required to decompress the kidney and preserve renal function. Traditionally, PCN is performed under fluoroscopy, exposing patients and healthcare staff to ionizing radiation. Ultrasound guidance provides continuous real-time visualization of the renal structures while completely eliminating radiation hazards. The primary purpose of this prospective interventional study is to evaluate the technical success, safety, and complication rates of ultrasound-guided percutaneous nephrostomy in oncology patients presenting with urinary tract obstruction. Participants in this study undergo ultrasound-guided PCN under local anesthesia using the standard Seldinger technique to place an 8Fr pigtail drainage catheter. The study evaluates the technical success rate of the procedure, procedural and post-procedural complications (such as bleeding or sepsis), recovery of kidney function measured by changes in serum creatinine levels, and hospital length of stay.

Contrast-associated acute kidney injury (CA-AKI) is a potential complication that can occur following exposure to iodinated contrast media during diagnostic and interventional procedures, contributing to prolonged hospital stays, increased morbidity, and higher mortality. Although several clinical risk factors are well-recognized, pre-procedural risk stratification remains challenging. The serum uric acid-to-albumin ratio (UAR) has emerged as a composite biomarker reflecting oxidative stress and inflammation that may help identify vulnerable patients prior to contrast exposure. The primary purpose of this prospective observational cohort study is to evaluate the predictive performance of the pre-procedural uric acid-to-albumin ratio for the development of contrast-associated acute kidney injury. The study will also compare the predictive value of UAR between patients undergoing cardiac procedures, specifically percutaneous coronary intervention (PCI), and those undergoing non-cardiac contrast procedures. A total of 100 adult participants will be enrolled across two groups: 50 patients undergoing PCI and 50 patients undergoing non-cardiac contrast procedures. Baseline venous blood samples will be obtained prior to the procedure to measure serum creatinine, uric acid, and albumin levels. Follow-up kidney function tests will be evaluated at 48 and 72 hours post-procedure to detect the development of CA-AKI and assess the diagnostic accuracy of pre-procedural UAR.

The Hamburg Acute Kidney Injury Study (HAKIS) is a prospective observational cohort study aimed at investigating the mechanisms, risk factors, and clinical determinants of acute kidney injury (AKI) trajectories and consequences.

Critically ill patients admitted to intensive care units (ICUs) frequently develop elevated blood sugar levels (hyperglycemia) as a result of acute illness-related stress, even if they do not have diabetes. While high blood glucose in the ICU is known to be associated with complications such as acute kidney injury and increased mortality, absolute glucose measurements alone may not distinguish acute stress from pre-existing chronic elevation. The Stress Hyperglycemia Ratio (SHR) evaluates the relative increase in blood glucose by dividing admission plasma glucose by the patient's estimated background average glucose derived from glycated hemoglobin (HbA1c). This measurement reflects the intensity of acute physiologic stress adjusted for baseline glycemic control. The purpose of this prospective observational study is to evaluate the prognostic utility of admission Stress Hyperglycemia Ratio in adult critically ill patients admitted to the intensive care units of Assiut University Hospitals. The study aims to determine whether admission SHR can predict in-hospital ICU mortality, acute kidney injury (AKI), the severity of acute organ failure measured by Sequential Organ Failure Assessment (SOFA) scores, the requirement and duration of invasive mechanical ventilation and vasopressor support, and the overall length of ICU stay. All participants will receive standard clinical care in accordance with institutional ICU protocols; no experimental drugs or clinical interventions will be administered as part of this study.

Major abdominal surgery (MAS) carries a high risk of 30-day mortality (\>5%). Perioperative myocardial injury (PMI) and myocardial injury after noncardiac surgery (MINS) frequently develop asymptomatically due to surgical analgesia. The 2022 European Society of Cardiology (ESC) Guidelines recommend routine surveillance with high-sensitivity cardiac troponin (hs-cTn) before and after surgery in high-risk patients, defining PMI by an absolute increase in hs-cTnT \>= 14 ng/L or a peak \> 5x ULN (\> 70 ng/L). However, validation in Asian populations and major abdominal visceral resections is scarce. This prospective observational cohort study (TROP-MAS) recruits \>= 650 consecutive high-cardiovascular-risk patients undergoing major abdominal surgery at Bach Mai Hospital (Hanoi, Vietnam). The study systematically evaluates the incidence and prognostic significance of hs-cTnT kinetics (T0 baseline, T1 24h, T2 48h postoperative) regarding 30-day all-cause mortality, major adverse cardiovascular events (MACE), and severe noncardiac complications (acute kidney injury, sepsis, anastomotic leak, bowel ischemia). Furthermore, it derives and validates population-specific optimal prognostic cut-off values using ROC curve analysis and multivariable Cox modeling.

This prospective observational study evaluates the feasibility, technical success, safety, and clinical outcomes of ultrasound-guided percutaneous peritoneal dialysis (PD) catheter insertion for urgent-start dialysis in pediatric patients with acute kidney injury (AKI). Acute kidney injury in children frequently requires prompt renal replacement therapy. While traditional surgical placement of peritoneal dialysis catheters often requires general anesthesia and an extended waiting period before use, percutaneous insertion under real-time ultrasound guidance using a modified Seldinger technique allows for bedside placement under local anesthesia and rapid initiation of dialysis. The study includes 50 pediatric patients (ranging from neonates up to 18 years of age) admitted to Assiut University Hospitals who require urgent renal replacement therapy and are candidates for peritoneal dialysis. Participants undergo percutaneous catheter placement guided in real time by ultrasound, followed by the initiation of an urgent-start dialysis protocol. The primary focus is to determine the technical success of the insertion procedure, evaluate catheter function and short-term catheter survival, and record procedure-related complications such as bleeding, dialysate leakage, infection, and mechanical malfunction. Secondary objectives include assessing renal recovery, patient survival to hospital discharge, and the need for conversion to alternative dialysis modalities.

This nationwide observational cohort study will investigate the association between frailty, chronological age, and clinical outcomes in critically ill patients receiving continuous renal replacement therapy (CRRT) in Sweden. Using data from the Swedish Intensive Care Registry, the study will assess whether the Clinical Frailty Scale (CFS) and other measures of comorbidity and illness severity provide prognostic information beyond chronological age. Outcomes will include 30-day mortality, intensive care unit length of stay, and mortality at 60, 90, and 365 days following intensive care unit (ICU) admission. The study aims to contribute to more individualized assessment of critically ill patients who may require CRRT.

This project aims to conduct an international, prospective, multicentre, observational study to determine the incidence of Postoperative Acute Kidney Injury (PO-AKI) in hospitalized children after noncardiac surgery. Urinary biomarkers are intended to be evaluated as predictors of PO-AKI in the same subjects. The study employs modern standardized classifications for AKI to comprehensively address the issue of PO-AKI in children. Describing the incidence and identifying risk factors for PO-AKI will play a crucial role in developing preventive strategies aimed at reducing associated mortality and morbidity. Furthermore, investigating the relationship between urinary biomarkers of renal injury and PO-AKI will provide valuable insights into assessing postoperative renal function in paediatric patients, especially when repeated blood sampling is not feasible.

The COPE-AKI study is a randomized, pragmatic, parallel-arm trial comparing a multimodal intervention to usual care on hospital-free days through 90 days of study follow up. The primary study hypothesis is that patients randomized to the intervention will have increased odds of more hospital-free days through 90 days (primary clinical) compared to those randomized to usual care. Key secondary hypotheses will investigate the impact of the intervention on rates of major adverse kidney events, rates of recurrent AKI, and changes in patient-reported outcomes. Participants (N=2145) will be allocated 1:1 to the intervention or usual care using a web-based system to maintain allocation concealment using stratified randomization with randomly permuted blocks. Randomization will be stratified by clinical site.

Use of regional citrate anticoagulation in an at risk population with decreased citrate metabolism. This study assesses the feasibility and safety of regional citrate anticoagulation in this population.

This study will evaluate the effectiveness of an evidence-based respiratory and renal care training program combined with case-based discussion on nurses' clinical reasoning, knowledge \& practice, nurse-physician collaboration, as well as selected clinical outcomes among mechanically ventilated patients in a tertiary-level ICU in Bangladesh. The intervention will provide structured education and practical training to ICU nurses on evidence-based respiratory and renal care for mechanically ventilated patients. Case-based discussions will be conducted to promote clinical reasoning, evidence-based decision-making, and nurse-physician collaboration during daily ICU rounds. Nurses' outcomes will be assessed before and after the intervention, focusing on clinical reasoning, knowledge, practice, and nurse-physician collaboration. Patient outcomes will be assessed using historical pre-intervention data and post-intervention data among eligible mechanically ventilated ICU patients, focusing on ventilator-associated events (VAE), ventilator-associated pneumonia (VAP), Acute Kidney Injury (AKI), duration of mechanical ventilation, ICU length of stay, and ICU mortality. The study is intended to determine whether evidence-based respiratory and renal care training with case-based discussion can improve ICU nurses' clinical reasoning, knowledge, practice, nurse-physician collaboration and contribute to improved outcomes among mechanically ventilated patients.

Contrast-Induced Nephropathy (CIN) is a serious complication following primary percutaneous coronary intervention (PCI) in patients presenting with acute ST-segment elevation myocardial infarction (STEMI). While the standard Mehran Risk Score uses static baseline clinical and procedural variables, it lacks dynamic parameters reflecting acute myocardial ischemic duration. Total ischemic time-from symptom onset to balloon inflation-drives systemic inflammation, forward cardiac failure, and renal hypoperfusion. This prospective observational validation cohort study aims to evaluate the independent predictive value of Total Ischemic Time for CIN in acute STEMI patients undergoing primary PCI. Additionally, it investigates whether integrating total ischemic duration into the classic Mehran Risk Score enhances discrimination accuracy, net reclassification, and calibration performance for early pre-procedural risk stratification.

PrismaLung+ is a sterile, single-use medical device aimed at performing partial removal of carbon dioxide (CO2) from the patient's venous blood via diffusion through a membrane. The goal of this prospective, open label, randomized controlled study is to evaluate the efficacy and safety of PrismaLung+ on extracorporeal carbon dioxide removal (ECCO2R) in critically ill patients under invasive mechanical ventilation (IMV). Patients will be randomized to receive either IMV combined with ECCO2R (using PrismaLung+) in the study group or IMV alone in the control group, at a ratio of 2:1.

Acute kidney injury can occur after coronary artery bypass grafting (CABG). This prospective, single-center observational study will evaluate whether two measurements obtained from renal Doppler ultrasound-the renal augmented velocity index (AVI) and renal resistive index (RRI)-can help predict postoperative acute kidney injury. About 200 adults undergoing elective isolated CABG with cardiopulmonary bypass will have bilateral renal Doppler examinations one day before surgery, within 60 minutes after admission to the intensive care unit, and 6 hours after intensive care unit admission. The primary outcome is acute kidney injury within the first 7 days after surgery, defined according to Kidney Disease: Improving Global Outcomes (KDIGO) criteria. Ultrasound measurements will be analyzed offline and will not influence clinical care.

Acute kidney injury (AKI) is a common complication after major liver surgery. This study will evaluate whether intraoperative management guided by renal regional oxygen saturation (RrSO₂), measured using near-infrared spectroscopy, can reduce postoperative acute kidney injury in adults undergoing elective hepatectomy. Approximately 1,200 participants at about 20 hospitals in China will be randomly assigned in a 1:1 ratio to RrSO₂-guided management or usual perioperative care. All participants will undergo continuous bilateral renal RrSO₂ monitoring. In the intervention group, RrSO₂ values will be visible to the anesthesia team, and a decrease of 10% or more from baseline on either side will trigger a standardized assessment and stepwise management algorithm. In the control group, RrSO₂ data will be recorded but concealed from the clinical team and will not guide treatment. The primary outcome is AKI within 7 days after surgery or before hospital discharge, whichever occurs first, based on Kidney Disease: Improving Global Outcomes serum creatinine criteria or initiation of renal replacement therapy.

This study aims to discover and validate new biomarkers for predicting CSA-AKI before cardiovascular surgery. Nested case-control studies embedded in prospective cohorts. Adult patients scheduled for cardiovascular surgery were continuously included. Blood/urine/stool samples and clinical data before and after contrast agent exposure and before and after cardiovascular surgery were collected, and the occurrence, progression and outcome of CSA-AKI events were dynamically monitored. Based on the exposure to contrast agents and the occurrence of CSA-AKI, two case-controls were constructed in the prospective cohort. In the construction of two case-controls, biomarkers were identified and validated by using multi-omics analysis techniques and machine learning techniques, etc.

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 prospective comparative observational study will compare the incidence of true nephrotoxicity in adult patients receiving vancomycin in combination with either piperacillin-tazobactam or meropenem. Vancomycin plus piperacillin-tazobactam has been associated with a higher incidence of kidney injury based mainly on increases in serum creatinine. However, it remains uncertain whether these increases represent true kidney injury or pseudo-nephrotoxicity, in which serum creatinine increases without a corresponding decline in kidney function. To address this uncertainty, the study will prospectively assess kidney function using both serum creatinine and cystatin C. True nephrotoxicity will be identified when changes in both biomarkers meet the study criteria for acute kidney injury, while an increase in serum creatinine without a corresponding cystatin C increase will be considered pseudo-nephrotoxicity. The study will compare true nephrotoxicity between patients receiving vancomycin plus piperacillin-tazobactam and those receiving vancomycin plus meropenem. It will also evaluate the timing, persistence, severity, and recovery of kidney injury. The results may help clarify whether the higher rates of nephrotoxicity reported with vancomycin plus piperacillin-tazobactam represent true renal injury and may help guide antibiotic selection when balancing antimicrobial coverage and kidney safety.

This randomized, controlled, pivotal study is intended to determine whether up to ten sequential 24-hour treatments with the Selective Cytopheretic Device (SCD) will improve survival in patients with Acute Kidney Injury (AKI) requiring continuous kidney replacement therapy (CKRT) when compared to CKRT alone (standard of care). This study is further intended to determine whether SCD therapy will reduce the duration of maintenance dialysis secondary to AKI. This study will enroll approximately 339 subjects across 30 US sites. Participants will be patients in an intensive care unit (ICU) setting with a diagnosis of AKI requiring CKRT.

Iodinated contrast dye used during computed tomography (CT) scans can sometimes cause kidney stress or damage, known as contrast-associated acute kidney injury (CA-AKI). Currently, doctors evaluate a patient's kidney safety using standard estimated glomerular filtration rate (eGFR). However, standard eGFR is calculated for an average body size rather than an individual's actual body size, which can misrepresent a person's true kidney excretion capacity. This study aims to evaluate whether comparing the volume of contrast dye directly to a patient's true, individualized kidney function (the contrast volume-to-absolute GFR ratio) can accurately predict the risk of developing kidney injury after an intravenous contrast-enhanced CT scan. This is a prospective, observational study involving adult outpatients who are already scheduled for a clinically necessary contrast-enhanced CT scan. Participation is observational and does not alter the patient's planned scan, medical treatment, or the amount of contrast dye administered by their healthcare team. Participants will: * Have their baseline kidney function assessed through a routine blood test (serum creatinine) within 48 hours prior to their CT scan. * Have their height and weight recorded to calculate their individualized, absolute kidney function. * Complete a follow-up blood test (serum creatinine) 48 to 72 hours after the CT scan to evaluate any changes in kidney function. Researchers will analyze whether the ratio of contrast volume to absolute kidney function reliably identifies patients at higher risk of contrast-associated kidney complications, helping to establish safer, personalized contrast dosing strategies in the future.

Acute kidney injury (AKI) is a common complication after cardiac surgery using cardiopulmonary bypass, leading to longer hospital stays and worse outcomes. Effective preventive therapies are lacking. This randomized controlled trial investigates whether transcutaneous auricular vagus nerve stimulation (taVNS)-a non-invasive ear stimulation technique-can reduce AKI after cardiac surgery. A total of 152 patients undergoing elective cardiac surgery with cardiopulmonary bypass will be randomly assigned to receive either taVNS or sham stimulation. The intervention begins before surgery and continues daily through postoperative day 5. The primary outcome is the incidence of AKI within 7 days after surgery. Secondary outcomes include AKI severity, need for dialysis, kidney function recovery, complications, and inflammatory biomarkers. This study is approved by the institutional ethics committee. All participants will provide written informed consent.