Active clinical trials for "Acute Kidney Injury"

The assessment of renal functional reserve (RFR) has been proposed for the risk stratification of patients undergoing potentially nephrotoxic procedures. The investigators hypothesized that there is a correlation between IRRIV and RFR under normal conditions. For this purpose, externally validation of IRRIV test is performed in a validation cohort of healthy subjects.

Esophagectomy serves as an exemplar of major operative trauma, with well-known risk of pulmonary, cardiac, anastomotic, and septic complications and the presence of postoperative complications after esophagectomies for cancer is associated with a reduced long-term survival. There is a paucity in the literature regarding postoperative renal outcomes after esophageal surgery, with a wide range of incidence. The investigators will conduct a historical cohort study aiming to evaluate the incidence of postoperative acute kidney injury in patients undergoing elective esophageal cancer surgery. Secondary, the investigators will assess the progression of the acute injury and the association with adverse pulmonary, cardiac, anastomotic, and septic events, as well as increase in hospital stay and mortality. The investigators will also identify risk factors associated with acute kidney injury occurrence.

At Maastricht University Medical Centre (Maastricht UMC+) a specialised unit was established where a dual screening process including both renal and cardiac parameters is used to minimize the risk of contrast-induced acute kidney injury as well as the risk of prophylactic hydration in eGFR<30mL/min/1.73m2 patients. Very little data exists on patients with eGFR <30mL/min/1.73m2 in this context. The current study aims to describe post-contrast outcomes of patients to whom this screening method has been applied.

The first presentations of patients with acute kidney injury (AKI) are usually to the emergency departments. While the mortality rate is 5-10% in uncomplicated AKI, it is between 40-90% in patients hospitalized in the intensive care unit. Therefore early diagnosis and treatment of AKI in the emergency department is important in terms of morbidity and mortality. Sonographic evaluation of the venous system (hepatic, portal and renal vein) may be useful for diagnosis. Studies conducted so far have generally been based on predicting cardiorenal AKI and renal poor outcomes and have been designed in general ICU conditions. In this study, the investigators aimed to determine the diagnostic value of sonographic venous Doppler imaging in terms of distinguishing subgroups of AKI in patients presented to the emergency department with AKI.

Acute kidney injury (AKI) is a severe complication after liver resection and is associated with morbidity and mortality. The incidence of postoperative AKI is significantly higher in elderly patients, especially in those with comorbidities. There is currently limited evidence on the incidence and associations of postoperative AKI in elderly patients following liver resection. This study will evaluate the incidence and associations of AKI in elderly patients after liver resection and its impact on postoperative mortality.

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.

The aim of this study is to evaluate the rate and outcomes of COVID-19 associated acute kidney injury (AKI) and use of kidney replacement therapy (KRT) in critically ill COVID-19 patients in ICUs in several large hospitals in Flanders, the northern region of Belgium. We will also explore the associations between several baseline risk factors for AKI, therapeutic strategies and COVID-19 related clinical signs and the occurrence of AKI and use of KRT.

The purpose of this study is to evaluate the possible association between portal vein flow pulsatility and acute kidney injury after cardiac surgery. Participants will undergo assessment of portal vein flow and intra-renal blood flow using bedside Doppler ultrasound before surgery and daily for three days after cardiac surgery.

Our aim is to test whether short term perioperative administration of oral spironolactone could reduce incidence of postoperative acute kidney injury (AKI) in cardiac surgical patients.

Per-dialytic hypotension is common in Intensive Care Unit patients under continuous renal replacement therapy, and occurs in nearly 50% of the patients. To date, there is a lack of study having characterized the underlying mechanism of hypotension in this setting. New diagnostic methods are now available with high reliability to identify hypovolemia as the underlying cause of hypotension, among which change in cardiac index during passive leg raising may be the less affected by restrictive validity criteria. A change in cardiac index greater than 10% during this test is highly predictive of preload dependence, i.e the probability than cardiac index will increase if cardiac preload increases. The aim of this study is then to identify, among hypotensive episodes occurring during renal replacement therapy in Intensive Care Unit patients, the percentage of episodes related to preload dependence as identified by passive leg raising.