View clinical trials related to Acute Kidney Injury.
Filter by:This study evaluates Different effects of two anesthetic techniques on renal function during the perioperative period of cardiac surgery in children.
Researchers are observing the values of proEnkephalin (PENK) via a blood draw in hospitalized patients that are volume overloaded requiring diuresis. If changes in PENK are found, physicians may predict values of change in kidney function during treatment.
The aim of this study is to evaluate whether the application of glutamine versus control in patients with high risk for AKI identified by biomarkers can reduce kidney damage after cardiac surgery.
The aim of this study is to evaluate the role of remote ischemic preconditioning (RIPC) in preventing acute kidney injury after lower limb revascularization. Remote ischemic preconditioning(RIPC) is a simple, cost-free and non invasive procedure (transient upper limb ischemia/reperfusion) that could provide organ protection (Heart, Brain and Kidney) following ischemia injuries.
Patients aged 18-89 with stable CAD and comorbidities receiving optimal medical treatment requiring PCI with iodinated contrast media. The aim of the study is to assess the prevalence of contrast-induced AKI in 2012-2013 and 2017 cohorts and to evaluate the potential risk factors of CI-AKI to better guide the prevention in patients of higher risk.
The investigators aim to compare between standard versus comprehensive care for post-acute kidney injury who are admitted with acute kidney injury at least stage 2 or receive renal replacement therapy.
Severe metabolic acidemia in the critically ill (pH equal or less than 7.20; PaCO2 equal or less than 45mmHg and bicarbonate concentration equal or less than of 20 mmol/l) is associated with a 50% rate of day 28 mortality. Moderate to severe acute kidney injury is a frequent cause of metabolic acidemia in the critically ill. When both severe metabolic acidemia and moderate to severe acute kidney injury are observed, day 28 mortality is approximatively 55-60%. Severe acidemia has been shown to be a biomarker of severity but may also contribute by itself to outcome. Investigators recently performed a multiple center randomised clinical trial (BICARICU-1) that suggests that sodium bicarbonate infusion titrated to maintain the pH equal or more than 7.30 is associated with a higher survival rate (secondary endpoint) in patients presenting both severe metabolic acidemia and moderate to severe acute kidney injury patients. Whether sodium bicarbonate infusion may improve long term survival (Day 90, primary outcome) in these severe acute kidney injury patients is currently unknown.
Acute kidney injury (AKI) is associated with significant morbidity and mortality, and because no specific treatment is available, early acknowledgment is needed. The incidence of AKI and chronic kidney disease (CKD) have been increasing over time but it is not until the past decade there is an understanding of a bidirectional nature between AKI and CKD, where AKI predisposes to CKD and vice versa. The criteria for diagnosing AKI is through serum creatinine (sCr) and/or urine output. As detection of sCr-increases are delayed by 48-72 hours it is not an optimal biomarker for early recognition of AKI. In contrast the biomarker neutrophil gelatinase-associated lipocalin (NGAL) has shown to predict AKI within 12h of critical disease or postoperative, and without the requirement of prior measurements for comparison. The purpose of the project is to investigate if the relatively new biomarker NGAL (neutrophil gelatinase-associated lipocalin), which is known to be able to detect AKI in an early phase, can be used to detect development of CKD and potential future hospital admissions in a relatively large and diverse cohort of patients admitted to the Acute Emergency Department at North Zealand Hospital. The study is designed as a longitudinal prospective study where there is an enrollment estimation of 3600 unselected patients over one year. Blood tests will be taken when admitted and thereafter every day for the first week and subsequently every once a week throughout hospitalization. Patients that are sent home the same day, will still be included in the study but without further NGAL analyses.
BACKGROUND: The incidence of acute kidney injury (AKI) in patients undergoing cardiac surgery can reach 35% and between 2 and 5% require kidney replacement therapy during the AKI episode. The development of AKI n this context is independently associated with higher long-term mortality (5-10 years). In addition, there is strong evidence that an episode of AKI in the hospital increases the risk of developing chronic kidney disease in the medium-long term. On the other hand, once AKI has been recovered according to creatinine values, there are no established biomarkers to predict patients at risk of progression to chronic kidney disease, which will allow us to increase nephroprotection and surveillance measures in this group of patients. STUDY DESIGN: Open-label randomized unicentric prospective study of patients undergoing valvular replacement heart surgery ± coronary bypass with acute kidney injury (AKI) risk >30% according to the Leicester Cardiosurgery scale. Patients will be randomized 1:1 in two groups: standard hemodynamic management or intensive hemodynamic management based on premorbid mean perfusion pressure (MPP). The interventional period will span from intra-operation until the first 24 hours postoperative. The incidence of AKI will be evaluated according to KDIGO criteria between 48 hours and 7 days after surgery. Patients will be followed for one year. Biomarkers of mitochondrial damage will be analyzed at various points during the follow-up to patients presenting AKI. INTERVENTIONS: A) Group 1/Intensive management: Intra-surgical values of ± 25% basal MAP will be maintained and once in the ICU an algorithm corresponding to group 1 based on cardiac index and ± 25% MPP will be followed for 24 hours. B) Group 2/Standard management: MAP during surgery will be maintained > 60 mmHg according to usual protocol. Once in ICU, during the first 24 hours an algorithm corresponding to group 2 based on cardiac index, MAP and CVP will be followed. Biomarkers of mitochondrial damage will be determined in urine in patients in both groups only in patients developing AKI according to KDIGO guidelines between 48h and 7 days. EXPECTED RESULTS:A 50% reduction in the incidence of AKI in the intervention group compared to the control group is expected. At the same time, markers of mitochondrial damage are expected to be validated in our cohort as biomarkers of AKI progression and to investigate its usefulness as biomarkers of transition to Chronic kidney disease.
Currently, contrast-induced kidney injury cannot be diagnosed on the day of cardiac catheterization. Recently, proenkephalin (penKid) was introduced as a new glomerular filtration marker. The aim of this study is to investigate whether the change in penKid level allows for early detection of affected patients.