View clinical trials related to Renal Insufficiency.
Filter by:Donor-derived cell-free DNA (dd-cfDNA) has shown promise as an early marker for cellular injury caused by rejection. dd-cfDNA changes may also indicate other injuries that lead to progressive decline in transplant organ function associated with, in the case of kidney transplantation, the presence of interstitial fibrosis (IF) and tubular atrophy (TA) seen in biopsy specimens. Here, we will study the utility of dd-cfDNA to predict rejection in pancreas and pancreas-kidney recipients.
The purpose of this research study is to show the blood pressure lowering effect of aprocitentan, a new drug, when added to the background antihypertensive therapy in patients with uncontrolled blood pressure and chronic kidney disease (CKD) stage 3 or 4. Participation in the research study will last up to 21 weeks (about 5 months).
This study is being conducted in healthy subjects and in subjects with a mild or moderate decrease in GFR (subjects with renal impairment).
To investigate whether increasing water intake has renal protective effect on PA patients after surgical treatment.
The "Hypotension Prediction Index (HPI)" was established by the Edwards Lifescience Company (Irvine, California, USA) and is CE certified. As part of the Edwards Acumen Decision-Support-Software-Suite the HPI is supported by the minimal invasive FloTrac Sensor. The HPI displays the probability of an occurring hypotension. The software was established with the help of 20.000 analyzed patient events. If the upper limit of the HPI is reached, the software is alarming the treating physician 8. At the university hospital of Giessen HPI analyses are used in the daily clinical routine as well as for scientific purposes. Preliminary data of the HPI-I-Trial ("Influence of the Hypotension Prediction Index on the number and duration of intraoperative hypotension in primary hip-endoprothetic replacement", University Hospital of Giessen) included patients, which underwent hip-endoprothetic replacement surgery and revealed that the use of HPI with a goal directed therapy (GDT) protocol compared to standard care significantly reduced the incidence and duration of intraoperative hypotension. Therefore HPI with GDT might reduce the incidence of hypotension related complications in a sicker patient cohort. The aim of the study is to investigate whether a goal directed treatment according to the Hypotension Prediction Index compared to standard care can reduce the incidence of intraoperative hypotension in patients under single lung ventilation.
Bovine Early Access, Compatibility, and Hemostasis (BEACH) Trial Study is to evaluate the Safety and Effectiveness of Early Access in Patients Who Require an Arteriovenous Conduit for Hemodialysis using the Artegraft® Collagen Vascular Graft™. The objective of the BEACH Trial is to demonstrate that early access of Artegraft is associated with acceptable rates of successful early access, and acceptable rates of a composite of adverse events, to support a modification of existing device labeling stating that Artegraft is capable of cannulation within 72 hours post implantation.
Strategies to stop AKI-AKD-CKD continuum - Policy is one of the collaborative projects, Strategies to stop AKI-AKD-CKD continuum, Epidemiology, Immunology, Repair, Artificial intelligence, and Policy (EIRAP). It is aimed to study effective interventional strategies that lower the incidence of CKD among patients with AKD. The intensified AKD care to reduce CKD (ISACC trial) is a prospective, open-labeled, randomized controlled trial is designed to evaluate the efficacy of multidisciplinary team care (MDT) model and acute kidney disease (AKD) clinic visits
A Clinical Study Comparatively Evaluating the Pharmacokinetics, Pharmacodynamics and Safety of Intravenous Administration of HSK3486 Injectable Emulsion in Patients with Chronic Renal Impairment and Subjects with Normal Renal Functions
End-stage renal disease (ESRD) is a growing global health problem, strictly connected with progressive ageing population and longer survival of patients living on renal replacement therapy. The majority of ESRD patients is on hemodialysis (HD) treatment. A successful HD procedure requires a functional vascular access (VA) to provide safe and long-lasting way to connect patient circulation to the artificial kidney. To date, VA dysfunction is the major cause of morbidity and hospitalisation in HD patients, and the major limitation of HD treatment. The current recommendation for VA is the native artero-venous fistula (AVF), surgically created in the forearm, but is still affected by high non-maturation and early failure rates. The most common cause of AVF early-failure is vascular stenosis due to neointimal hyperplasia (NH). Despite the exact mechanisms underlying stenosis development remain tentative, there is general consensus that hemodynamic conditions play a key role in the formation of NH. Previous computational fluid dynamics (CFD) investigations inside patient-specific AVF models conducted by our group revealed transitional laminar-to-turbulent flow in the juxta-anastomotic vein. Various vascular access devices have been designed to incorporate features to regularize the hemodynamics and favour spiral flow development in the venous segment of the AVF. The VasQ external support device (Laminate Medical Technologies, Israel) is a novel Nitinol implant, externally surrounding and supporting the vein and "hugging" the artery near the junction site, without being in contact with the blood flow. VasQ attempts at constraining and shaping geometrical parameters of the AVF, as well as reinforcing the vulnerable perianastomotic vein against high pressure, wall tension and flow levels. A prospective single-centre study demonstrated the safety of the VasQ external support device, but the effect of its use on hemodynamic conditions and the advantages in terms of flow regularization in patient-specific AVFs still need to be investigated. A detailed analysis of the local blood flow field in patient-specific AVFs can be obtained coupling non contrast-enhanced MRI (NCE-MRI) and high-resolution CFD simulations, using a NCE-MRI protocol recently optimized by our group. Our MRI sequence has the advantage of providing high-quality images in a short acquisition time of 5-10 minutes compared to other MRI protocols that require more than 45 minutes for a single acquisition. Combined with high-resolution CFD, our MRI-to-CFD pipeline allowed us to characterize morphological and hemodynamic changes in the AVF of one patient at two timepoints, immediately after AVF surgery and at AVF maturation. Therefore, it seems to be a promising approach to perform morphological and hemodynamic analysis also in AVF created using the VasQ device and can be used to elucidate the effects of VasQ device on hemodynamic conditions, as compared to hemodynamic conditions present in AVFs created using conventional surgery without the use of any device.
Haemodialysis is a renal replacement therapy that can be introduced to patients with end-stage renal disease (ESRD) to help them maintain a good healthy life. The patient's blood is pumped through a dialysis machine to remove excess fluid, salt and waste, then it is pumped back into the patient's circulation system. In order to carry out haemodialysis, vascular access (VA) is required to connect the patient to the dialysis machine. Patients have only three options of vascular access: arteriovenous fistula (AVF), an anastomosis between a native vein and an artery; arteriovenous graft (AVG), a connection between a synthetic tube and native blood vessels; and (3) central line, a cuffed catheter placed in a large neck vein. Arteriovenous fistulas are the preferred method for VA because of their longevity and causing the least number of complications. Although there are a number of factors that may increase the probability of AVF failure rate such as age and gender of the patient, poor native vessel structure, medications and the level of surgical experience, 30-40% of new AVFs fail to mature for unknown reasons. For an AVF to become functionally mature postoperative, remodelling and dilation of the native artery and vein are essential to accommodate significantly increased blood flow. However, pre-existing diseases in patients with ESRD such as arterial stiffness and endothelial dysfunction may impair AVF and preclude dialysis. It has been asserted that the lack of AVF success is attributable to insufficient arterial dilation because of poor arterial wall elasticity. The study aims to investigate the role of arterial stiffness and endothelial dysfunction in predicting AVF outcome using novel non-invasive ultrasound applications: 2D shear wave elastography and 2D strain speckle tracking will be employed to assess arterial stiffness, while an intraoperative flow-mediated dilation (FMD) technique will be used to evaluate endothelial dysfunction.