View clinical trials related to Acute Kidney Injury.
Filter by:The aim of this study was to identify and validate novel biomarkers for predict acute kidney injury (AKI) subphenotype, major adverse kidney events and other poor outcomes.
The objective is to determine the effectiveness of pulsatile flow during cardiopulmonary bypass to reduce the incidence of acute kidney injury after cardiac surgery. Investigators will also evaluate the safety and impact of pulsatile flow on clinical outcomes compared to non-pulsatile flow during cardiopulmonary bypass.
Liver transplantation (LT) is a high-risk surgery for hemodynamic instability and haemorrhagic shock with a high-risk of acute kidney injury (AKI). Indeed, the incidence of post-transplant AKI exceeds 50% in some series with 15% of patients requiring renal replacement therapy. Acute kidney injury after LT is a predisposing factor for chronic renal failure which is independently associated with higher morbidity and mortality. Arginine vasopressin (AVP), an essential stress hormone released in response to hypotension, binds to AVPR1a to promote vasoconstriction. Furthermore, it may have nephroprotective effects with a preferential vasoconstriction of the post-glomerular arteriole resulting in increased glomerular filtration The hypothesis of the present work is that low-dose arginine-vasopressin supplementation reduce posttransplant AKI in liver transplantation.
This study aims to investigate the potential factors contributing to the development of Acute Kidney Injury (AKI) in patients undergoing pulmonary resection with Video Assisted Thoracoscopic Surgery (VATS) for lung malignancy. The study will focus on demographic data, laboratory parameters, perioperative fluid management, and haemodynamics. The research will be conducted at SBÜ Ankara Atatürk Sanatorium Training and Research Hospital. The study will involve patients who have given informed consent and will undergo VATS with standard anaesthesia monitoring. Anaesthesia management will follow our routine protocol in our clinic. Patients will be divided into two groups based on whether they have a more than 25% decrease in estimated glomerular filtration rate (t-GFH) and/or a 1.5-fold increase in serum creatinine and/or a 6-hour urine volume of less than 0.5 ml/kg/h. The patients will be divided into two groups based on this definition, and the risk factors between these groups will be analysed. The preoperative routine blood values, demographic data (age, gender, height, weight, and BMI), ASA physical status, smoking and alcohol habits, comorbidities, and regular medication use will be recorded. Intraoperative urine output and haemodynamic parameters will also be monitored. Routine blood gas analysis, blood urea nitrogen (BUN), glomerular filtration rate (GFR), albumin, haemoglobin, sodium, potassium, chlorine, and magnesium will be measured and recorded, along with urine output and t-GFH. Patients will be evaluated in the hospital on the day the surgeon calls for a postoperative check-up and on the 30th postoperative day to see if there are any complications.
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.
The goal of this study is to quantitatively assess renal microcirculation changes by contrast-enhanced ultrasound and to obtain systemic hemodynamic information by ultrasound Doppler at the same time, to analyze the relationship between renal microcirculation changes and systemic hemodynamic changes, and to explore its predictive value in renal function recovery in patients with critical acute kidney injury. The main questions it aims to answer are: 1. To explore the quantitative parameters of contrast-enhanced ultrasound which can reflect the changes of renal microcirculation. 2. To explore the relationship between renal microcirculation and systemic hemodynamics. 3. To explore the value of renal microflow changes quantitatively evaluated by contrast-enhanced ultrasound in predicting renal function recovery.
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.
Fluid overload is harmful in critically ill patients; In addition to increasing mortality, it may increase the incidence of acute kidney injury (AKI), length of ICU stay, and duration of mechanical ventilation by causing end-organ damage. (1-3) Mortality attributable to AKI is 20% and is an independent determinant of mortality. (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. When the IVC diameter is < 2 cm, it means there is no congestion and VEXUS is 0. Mild congestion: In addition to the IVC measuring approximately 2 cm, normal patterns such as the systolic wave being greater than the diastolic wave in the hepatic vein PW-doppler, pulsatility below 30% in the portal vein Doppler, continuous flow in the renal vein PW-doppler, or slightly abnormal patterns, i.e. hepatic The systolic wave in vein PW-doppler is smaller than the diastolic wave, the pulsatility in portal PW-doppler is between 30-50%, and the renal vein PW-doppler is accompanied by biphasic flow, and VEXUS is scored as 1. Moderate congestion is scored as VEXUS 2, which is measured as IVC 2 cm or more, plus inversion of the systolic wave on hepatic vein PW-doppler, pulsatility greater than 50% on portal PW-doppler, and discontinuous monophasic flow with only the diastolic phase on renal vein PW-doppler. It is accompanied by one of the serious abnormal patterns such as There is severe congestion, that is, VEXUS 3: IVC diameter of 2 cm or more and the presence of at least two seriously abnormal PW-Doppler morphologies. (5) The primary aim of this study is to describe the prevalence of venous congestion based on VExUS in general ICU patients. Secondary outcomes were to evaluate the association between VExUS, AKI, and 28-day mortality.
Predictors of Acute Kidney Injury in critically ill children admitted to PICU during one year.
In this prospective observational study, patients hospitalized in mixed intensive care unit, aged between 18 and 80, and diagnosed with sepsis and septic shock according to sepsis-3 criteria will be included. To determine whether patients develop AKI during the first five days of ICU admission, creatinine and urine output will be monitored daily for the first five days of ICU admission according to KDIGO criteria. Clinical diagnosis and treatment of AKI will be made according to KDIGO. According to KDIGO, patients will be divided into two groups: those who develop AKI and those who do not. By comparing plasma NGAL and VEXUS scores between groups, the sensitivity and specificity of the VEXUS score in determining AKI will be determined.