View clinical trials related to Acute Kidney Injury.
Filter by:Acute kidney injury (AKI) after major surgery is a well-known complication. The incidence of AKI after major surgery ranges from 13% to 50%. The morbidity and mortality rates increase in patients with AKI due to the treatments applied and the prolonged hospital stay. In addition, as a result of all these processes, hospital costs increase and burden the health systems. Classifications such as Acute Kidney Injury Network (AKIN) or Kidney Disease Improving Global Outcomes (KDIGO) are used in the diagnosis of AKI. In these classifications, evaluation is made based on kidney damage, serum creatinine (Scr), and urine output. However, Scr; is affected by factors such as age, gender, diet, muscle mass, and medication. In addition, in healthy individuals in terms of kidney reserve, a loss of up to 50% in nephrons is tolerated by the body and there is no change in Scr values. Therefore, the onset of the increase in Scr values occurs 48-72 hours after kidney damage. This situation causes delays in the treatments applied and increases morbidity and mortality rates. For these reasons, interest in biomarkers used in the early diagnosis of AKI has increased in recent years. Neutrophil gelatinase-associated lipocalin (NGAL) is a 25 KDa, neutrophil-derived molecule from the lipocalin family. It is also secreted in small amounts from kidney, prostate, and respiratory tract epithelial cells. After ischemic and nephrotoxic acute tubular necrosis, NGAL levels peak at the 3rd hour and remain elevated for approximately 24 hours. In patients who do not progress to AKI, NGAL levels begin to decrease in the 1st hour after injury. When the current literature is examined, scientific studies on NGAL have mostly been carried out on cardiovascular surgery cases to date. There are very few studies evaluating NGAL levels in patients who develop AKI after major abdominal surgery. These few studies evaluated either serum NGAL or urinary NGAL levels. In this study, both serum NGAL and urinary NGAL will be measured simultaneously to detect AKI that may develop in patients undergoing major abdominal surgery.
In addition to respiratory involvement, SARS-CoV 2, the virus responsible for coronavirus 2019 or Covid-19, appears to be responsible for renal involvement such as acute renal failure or proteinuria, so the mechanisms are not known at this time. The consequences of Covid-19 on renal function in the short and long term are not known. It is important to be able to better document these renal impairments to understand the mechanisms of this disease. The main objective of this study is to describe the prevalence of Covid-19-related renal damage (acute renal failure, proteinuria, microalbuminuria, hematuria) in a large cohort of patients in intensive care for SARS-CoV 2 infection with severe respiratory impairment. The other objectives will be to evaluate in this cohort the impact of these renal impairments on the severity of the Covid-19 disease, and to compare them to the renal impairments of patients in intensive care for acute respiratory distress syndrome (ARDS) due to other respiratory diseases. Blood and urine samples will be taken at the time of intubation in all critically ill patients with respiratory distress requiring mechanical ventilation for Covid-19 or other cause of respiratory distress with PaO2/FiO2 ratio < 300. Patients will be followed for the duration of their ICU and hospital stay. Data will be collected prospectively in three ICUs in the University Hospitals of Marseille.
The goal of this clinical trial is to learn about in postoperative acute kidney injury in cardiac surgery. The main questions it aims to answer are: - Intraoperative Transesophageal Ultrasound Doppler venous imaging can be used to predict the occurrence of cardiac surgery associated acute kidney injury (CSA-AKI ) in the early stage by observing the changes of renal vein, portal vein and hepatic vein blood flow patterns, calculating the renal vein stasis index and portal vein pulsatility index, and evaluating the degree of venous congestion. - Controlled low central venous pressure (CLCVP) technology can reduce the occurrence of CSA-AKI by reducing venous congestion and increasing renal perfusion pressure. Participants will receive Transesophageal Ultrasound Doppler during cardiac surgery. If the participant is assigned to the intervention group, if the central venous pressure of the participant is ≥ 10mmHg 30 minutes after the end of cardiopulmonary bypass, he will receive nitroglycerin pumped to apply the controlled low central venous pressure (CLCVP) technology; If participants are assigned to the control group, no intervention measures will be taken. The researchers will compare the intervention group with the control group to see the occurrence of AKI and AKD after cardiac surgery.
Acute kidney injury (AKI) is a critical complication associated with a high incidence of morbidity and mortality that can occur in critically ill patients and after major surgical procedures. The aim of this study is to identify the incidance and outcomes of patients underwent pneumonectomy, defined by Kidney Disease Improving Global Outcomes (KDIGO) criteria.
Renal lithium clearance is hypothesized to be a useful indicator of renal tubular function. In this study lithium clearance will be monitored in patients with sepsis associated acute kidney injury and in healthy controls.
The goal of this observational study is to compare in ICU patients received CVVH treatment. The main questions it aims to answer are: Control of Filtration fraction by built-in calculator - Reduced filter clotting and prolong filter lifespan - Improve patient mortality Participants will divided into before group and after group based on the day when built-in calculator for calculating Filtration fraction was utilized. Researchers will compare before group to see if there were differences in clotting events, filter downtime, filter lifespan, mortality, etc.
The goal of this prospective cohort study is to evaluate, in pediatric patients after cardiac surgery, the predicting capability of biomarkers for acute kidney injury. The main questions it aims to answer: - The predicting capability of acute kidney injury (AKI) biomarkers for the primary endpoint: the occurrence of AKI stage ≥ 1 within 48-h after intensive care unit (ICU) admission. - The predicting capability of AKI biomarkers for the secondary endpoint: the occurrence of AKI stage ≥ 2 within 12-h after ICU admission. - Investigated biomarkers include urine chitinase 3-like protein 1 (uCHI3L1), urine neutrophil gelatinase-associated lipocalin (uNGAL), tissue inhibitor of metalloproteinases-2 (TIMP-2), insulin-like growth factor-binding protein 7(IGFBP7), NephroCheck® and Δ serum creatinine [postop-preop]. Differences in concentration between patients with and without AKI development were investigated, as well as AKI diagnostic performance of (combined) biomarkers. During and after cardiac surgery several blood and urine samples will be taken of participants to investigated AKI occurrence and to measure biomarker concentrations.
In our study, to show the effect of pneumoperitoneum on acute kidney injury in patients scheduled for laparoscopic surgery, NGAL and IGF-1 values will be measured before, after and 24 hours after pneumoperitoneum, and these values will be compared. In our study, we aimed to investigate the effect of pneumoperitoneum applied on acute kidney injury in patients who underwent laparoscopic surgery. Creatinine and NGAL have been used successfully in the follow-up of acute kidney injury. Our study investigates whether IGF-1 will be an effective indicator in acute kidney injury by comparing IGF-1 and NGAL values before pneumoperitoneum, after pneumoperitoneum and at the postoperative 24th hour.
Total joint arthroplasty (TJA) is a common orthopedic procedure to treat patients with end-stage knee arthritis. Over 4,000 TJA were performed in the Hong Kong public hospitals in the past 12 months (July 2020 - June 2021) and the demand for this procedure is ever increasing with time. TJA are rehabilitative surgeries with an aim to accelerate patient ambulation and minimize hospital stay. To facilitate this process, multi-disciplinary enhanced recovery after surgery (ERAS) programs are implemented. This involves surgeons, anaesthetists, physiotherapists and nurses who follow an integrated care pathway to allow early patient mobilization and hospital discharge. The program reduces the hospital length of stay and this can reduce the risk of complications and mortality. One of the major challenges in TJA is postoperative pain. TJA is a very painful procedure with up to 50% of patients have moderate to severe pain (numeric rating scale >4) immediately after surgery. This can delay patient mobilization and hinder postoperative recovery. Severe postoperative pain is also associated with an increased risk of infection, myocardial ischaemia, respiratory complications and the development of chronic pain. Therefore, an effective multimodal analgesia is an essential component in the ERAS program. It combines different oral analgesics to limit opioid use and its related side effects. Celecoxib has been shown to reduce pain and opioid use after TJA. It is therefore recommended to be used routinely. However, its potential nephrotoxic property has led to its judicious use, especially in patients with preoperative chronic renal failure. Postoperative acute kidney injury (AKI) is an independent risk factor for mortality, cardiovascular complications and hospital length of stay6. However, the studies assessing the incidence of AKI following TJA are scarce, and with conflicting results. Therefore, the aim of our study is to retrospectively review the incidence and duration of AKI following elective TJA in a tertiary institution. We will evaluate the effect of celecoxib in our multimodal analgesia regimen on the risk of postoperative AKI and determine the risk factors associated.
Renal resistive index (RRI) is calculated from ultrasonographic Doppler measurements of flow velocities in intraparenchymal renal arteries. Normal values are around 0.60, and 0.70 is considered the upper normal threshold in adults. Both preoperative and postoperative elevation of RRI has shown promise in early detection of AKI after cardiac surgery. Further, elevated RRI before coronary angiography is associated with an increased risk of cardiovascular complications up to 1 year after the procedure. The role of preoperative RRI in predicting long-term renal and cardiovascular complications after elective surgery is however not known. The aim of this study is to assess the role of preoperative RRI to predict the risk of persistent renal dysfunction as well as renal- and cardiovascular complications up to 5 years after surgery.