View clinical trials related to Acute Kidney Injury.
Filter by:After the use of iodinated contrast agents, there is a risk of developing contrast nephropathy. Limited data in the literature are available on the incidence of contrast nephropathy after fluorescein angiography (FFA), which is an iodine-free organic contrast. Additionally, factors associated with contrast nephropathy after FFA are not clearly understood. Our study aims to evaluate these points.
Fluid expansion with isotonic crystalloids is a first-line intervention in the treatment of patients with acute kidney injury (AKI). While it is generally accepted that the timely correction of kidney hypoperfusion will minimize the extent of injury as well as potentially facilitate recovery, there are potential harms involved in indiscriminate administration of intravenous fluids. Although anticipating fluid tolerance is part of the clinical evaluation of a patient for whom intravenous fluid therapy is considered, it has been suggested that using Point-Of-Care ultrasound (POCUS) may enable the early identification of patients with a high-risk of congestive complications and guide clinical decisions with greater precision[1]. However, it has not been shown that providing this information in the context of AKI result in a change in management or a prevention of complications. This single-center pilot randomized controlled trial aim to determine the feasibility of comparing a management including a POCUS evaluation of fluid tolerance to usual care in non-critically ill patients with AKI. In the intervention group, a POCUS evaluation will be performed and interpreted by experienced staff producing a report that will be presented to the attending care team. This assessment will be repeated 48-72 hours later. The primary aim of the study will be to establish the feasibility of this intervention. Secondary objectives will include determining the difference between the intervention arm and the control arm in relationship with fluid administration, diuretic use, evolution of kidney function, and intensification of care.
Laparoscopic and minimally-invasive robotic access has transformed the delivery of urological surgery. While associated with numerous desirable outcomes including shorter post-operative stay and faster return to preoperative function, these techniques have also been associated with morbidity such as reduced renal blood flow and post-operative renal dysfunction. The mechanisms leading to these renal effects complex are multifactorial, and have not been fully elucidated. However they are likely to include direct effects from raised intra-abdominal pressure, and indirect effects secondary to carbon dioxide absorption, neuroendocrine factors and tissue damage from oxidative stress. It is well documented that pneumoperitoneum places profound stress on the cardiovascular, respiratory and gastrointestinal systems; it also places strain on the renal system. During robotic surgery, continuous pneumoperitoneum and continuous rising of intra-abdominal pressure causes transient oliguria. Moreover, kidney function, estimated by the GFR, deteriorates during elevated intra abdominal pressure (IAP), and most of the studies identified decrease in renal blood flow (RBF) and renal cortical perfusion. Studies conducted to assess the contribution of the nitric oxide (NO) system to the renal hemodynamic/function alterations during pneumoperitoneum, concluded that these adverse effects are probably related to interference with the NO system, and could be partially ameliorated by pretreatment with nitroglycerine. Mannitol is an osmotic diuretic and a renal vasodilator that promotes tubular flow, prevents intratubular cast formation, decreases postischemic cellular swelling, and might serve as a free radical scavenger. Mannitol has traditionally been administered before renal surgeries to minimize perioperative renal dysfunction according to preclinical animal studies and clinical experience with renal transplantation. However, high-level clinical data in support of this belief are not available. The aim of this study is to characterize the effects of increased intra-abdominal pressure on renal perfusion and function in cases undergoing robotic lower tract urologic surgeries, and to assess the contribution of either mannitol or nitroglycerin infusion to the renal hemodynamic/function alterations during pneumoperitoneum.
Heart failure is a syndrome that progresses with symptoms and signs caused by cardiac dysfunction and results in a shortened life expectancy (1). Acute heart failure resulting in hospitalization is a significant cause of morbidity and mortality. With the increase in the severity of the disease and rapid advances in the treatment of heart failure, these patients are frequently hospitalized and monitored in intensive care. (2) Five years after diagnosis, mortality can be up to 67%. Additionally, it is known that patients with heart failure are hospitalized on average once a year after diagnosis. (3) In a multicenter study, it constituted 14% of 3000 cardiac patients admitted to intensive care units. Additionally, due to longer ICU stays, these patients accounted for 33% of total inpatient days. An increasing number of heart failure patients require intensive care due to respiratory failure, regardless of left ventricular ejection fraction. Heart failure accounts for approximately one-third of patient days in intensive care units, and this burden is increasing. This shows that attention should be paid to the quality of care for patients requiring critical care. (2) Multidisciplinary programs have been implemented to deal with the high prevalence. However, the optimal follow-up frequency is unknown. Therefore, some tools are needed to improve patient prognosis (3). Neutrophil gelatinase-associated lipocalin (NGAL) is a biomarker whose values in both urine and plasma have been associated with acute kidney injury (AKI). Although NGAL is an early specific biomarker for AKI, it has not yet come into routine use, but is frequently used in clinical and experimental studies (4). Venous load ultrasonography score (VExUS) is a new systemic congestion scoring method based on inferior vena cava dilation and pulsed wave Doppler (PW-Doppler) morphology of the hepatic, portal and renal veins. It has been proposed as a score to assess systemic congestion.
To study the ability of RRI, measured by bedside Doppler ultrasound, in detecting acute kidney injury in high-risk patients admitted to surgical intensive care unit, Aswan university hospital, compared with renal biomarkers and conventional assessment using urine output and serum creatinine levels.
This study aims to establish a cohort of 500 patients with hematological disease who undergoing allogeneic hematopoietic stem cell transplantation in the northwest region. All patients will be followed up at the outpatient clinic once a week after transplantation until 100 days after transplantation to observe the presence of acute graft versus host disease, acute kidney damage, and major cardiovascular adverse events. Serum samples from the day before pre-treatment, day after pre-treatment, 2 weeks，4 weeks，8 weeks and 12 weeks after transplantation will be detected by metabolomics sequencing.The primary objective is to explore the serum metabolic markers of acute graft versus host disease，acute kidney injury, and major adverse cardiac events within 100 days after transplantation，the secondary objective is to observe the high-risk factors for early complications.
This is a prospective randomized clinical trial designed to determine the effect of intraoperative dexmedetomidine administration on renal function after coronary artery bypass graft surgery.
Approximately 150 patients with acute kidney injury (AKI) associated with acute hypoxemic respiratory failure (AHRF) will be randomized at up to 40 sites. Patients will be randomly assigned to either Auxora or matching placebo. Study drug infusions will occur every 24 hours for five consecutive days for a total of five infusions.
Renal perfusion and neutrophil-mediated inflammation will be assessed in the kidney in sepsis patients with acute kidney injury using positron emission tomography. For marked water will be used for renal perfusion and a newly developed PET tracer molecule (11C-GW457427) with specific binding to neutrophil elastase which provides a measure of the amount of infiltrating neutrophils in the renal parenchyma for inflammation. The study is performed in a PET-CT camera where anatomical imaging takes place at the same time as the PET examinations.
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.