Active clinical trials for "Renal Insufficiency"

Acute renal failure is a frequent and severe postoperative complication of cardiac surgery performed under extracorporeal circulation. It is an independent risk factor for mortality and significantly increases the length of hospital stay. The origin of renal insufficiency after extracorporeal circulation is multifactorial (long duration of extracorporeal circulation, hemodynamic instability per and post-extracorporeal circulation, prolonged hypotension, transfusion ...). Nevertheless, an entirely different pathophysiological mechanism, though not recent, is less often mentioned but shows renewed interest. This is the concept of renal venous congestion which may be responsible for impaired renal function in the absence of cardiac dysfunction. Based on Guyton's circulatory model, the investigators approach this systemic venous hypertension through the measurement of the Pmsf-PVC gradient.

Contrast media-induced nephropathy following diagnostic and therapeutic cardiac catheterization.

Chronic Hemodialysis is a treatment for kidney failure. It involves the construction of three treatment sessions per week extrarenal lasting 4 hours each. This treatment is necessary but it has an impact on the quality of life of patients.The investigators believe that to improve the overall quality of life in hemodialysis patients, the quality of each hemodialysis session must be improved. The quality criterion is not only medical, it must also take into account the patient's perception about the course of its meeting : that's what we call quality of experience of the dialysis session. Our daily healthcare practice shows that each hemodialysis session is experienced differently by the patient according to different factors : physical, psychological, relational, technical, temporal. The quality of the experience of a hemodialysis session could be positively influenced by the use of supplements occupational assets or liabilities, for improving patient satisfaction or by enhancing its relationship with the staff. Indeed, a preliminary study ( in the nephrology unit of our establishment in January 2012) of 8 patients undergoing active occupational educational activity during hemodialysis, showed that the experience of the hemodialysis session was potentially improvable (experienced patients improved, reduced cramps ... ). However, to assess the impact of such measures on the lives of the dialysis session and the quality of life in general, the investigators need to measure the quality of living of a dialysis session. There is not, at present, specific tool to measure the quality of the experience of a hemodialysis session. This tool would measure the impact of a caregiver support occupational during dialysis sessions. The main objective of this study is to create and validate an instrument to measure the quality of living of a hemodialysis of chronic renal insufficiency subject.

Previous studies indicate that patients with cardiovascular disease have a variable response to aspirin. Despite treatment with aspirin a large number of patients suffer a myocardial infarction. This has given rise to the phenomenon "aspirin low-responsiveness". Laboratory aspirin low-responsiveness can be defined as the failure of aspirin to inhibit platelet production of thromboxane A2 or inhibit thromboxane-dependent platelet aggregation. Whether a low platelet response to aspirin results in an increased risk of future thrombotic events is of great clinical significance, but is still unknown. The investigators hypothesize that patients with a reduced response to aspirin, determined by platelet aggregation using the apparatus Verify Now Aspirin and Multiplate, have a higher risk of thrombosis. The purpose of this study is to investigate whether a higher incidence of cardiovascular events is found in patients with coronary artery disease (CAD) having a reduced biochemical response to aspirin compared with CAD patients having a normal biochemical response to aspirin. In addition to CAD, all patients have at least one of the following risc factors: previous myocardial infarction, type 2 diabetes mellitus and/or renal insufficiency.

Renal failure and high plasmatic level of urea have been associated with an increased risk of hemorrhage in surgical patients. There is only sparse data on the impact of renal replacement therapy on homeostatic parameters. The aim of this study is to describe potential changes in homeostatic parameters before and after renal replacement therapy.

The objectives are to better understand, in the dialysis patient, the relationships between microvascular morphometry and cardiovascular events, survival, arterial hypertension, the pathology responsible for renal failure, the age of dialysis and metabolic parameters. The investigator team also want to better understand the relationship between the diameter of small arteries and parameters such as hypertension, the pathology that causes kidney failure, the age of dialysis, the use of VKA or EPO, metabolic parameters (HbA1c, NFS, reticulocytes, BNP, lipid balance, phosphocalcic balance).

The aim of the current study is to screen different causes and characteristics of Gastrointestinal bleeding in Chronic Renal Failure patients at Assuit University Hospital according to their stages based on e GFR (Stage I to IV), in order to assess different modalities of therapeutic intervention from medical therapy up to therapeutic intervention.

The occurrence of renal failure during severe forms of COVID-19 is common (20-35% of patients treated in intensive care) and associated with an unfavorable short-term prognosis, but the medium-term renal outcome is not is not known. The aim of the study is to establish the frequency of chronic kidney failure after AKI KDIGO 2 and 3 occurring during severe COVID-19 in intensive care.

Liver transplantation is associated with a modification of the perfusion pressures of the abdominal organs (preoperative portal hypertension in connection with liver pathology, and normalization of the perfusion pressures during surgery). This abrupt change in the infusion regime is probably responsible for an alteration in renal function in some patients, and the identification of renal vascular profiles using Doppler could point to pathological profiles, which should be diagnosed early.

Determination of IgM and IgG antibodies against SARS-CoV-2 in dialysis patients by continous monitoring in the period from March 2020 to december 2020