Use of Bicarbonate to Reduce the Incidence of Acute Renal Failure After Cardiac Surgery
Kidney FailureAcute1 moreThe purpose of this study is to determine if the incidence of acute renal failure (ARF) in high risk patients who undergo coronary artery bypass grafting (CABG) is reduced by treating patients in the perioperative period with intravenous (IV) sodium bicarbonate. Patients will be randomized in a 50:50 allocation to receive either IV sodium bicarbonate or IV normal saline. The volume of fluid given in each arm of the study is equal. All other interventions in those patients will be according to standard cardiothoracic anesthesia protocol at our institution.
Prevention of Acute Kidney Injury in Cardiac Surgery Patients
Kidney InjuryAcute kidney injury (AKI) has no uniform criteria, but is commonly defined as an increase in serum creatinine concentration by at least 25% from baseline. It occurs in 30% of patients following cardiac surgery, and at least 50% of patients with underlying renal insufficiency. Patients who have a reduced creatinine clearance pre-operatively are at the greatest risk of developing post-operative AKI. The purpose of the current study is to determine if intravenous hydration with either isotonic saline or sodium bicarbonate 150 mEq/L is effective at preventing post-operative AKI in patients with baseline kidney insufficiency and who are undergoing cardiac surgery using cardiopulmonary bypass. The study hypothesis is that an infusion of sodium bicarbonate 150 mEq/L will be more effective than isotonic saline in reducing the incidence of post-operative AKI in cardiac surgery patients with a preoperative glomerular filtration rate (GFR) less than 60 ml/min/1.73m2.
Prevention of Contrast Nephropathy by Sodium Bicarbonate Versus Sodium Chloride and N-acetylcysteine...
Acute Renal Failure Contrast NephropathyThe objective of this study is to assess the efficacy of sodium bicarbonate compared with sodium chloride and oral N-acetylcysteine (NAC ) pretreatment for prevention of contrast nephropathy in patients with advanced renal disease undergoing cardiac catheterisation.
A Study of RBT-3 in Healthy Volunteers and Volunteers With Stage 3-4 Chronic Kidney Disease
Kidney FailureAcuteThis is a Phase 1b, single center, dose-escalating study evaluating the safety, tolerability, and pharmacodynamic effect of RBT-3 in healthy volunteers and in subjects with stage 3-4 chronic kidney disease.
Assessment of ProEnkephalin to Detect Acute Kidney Injury (AKI)
Heart FailureVolume Overload2 moreResearchers 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.
A Study to Evaluate RMC-035 in Subjects Undergoing Cardiac Surgery
Acute Kidney Injury (AKI)The purpose of the clinical study is to assess safety, tolerability and pharmacokinetics of RMC-035 for the prevention and treatment of acute kidney injury (AKI) in patients undergoing cardiac surgery.
BIA Versus Physician Adjustment in Acute Kidney Injury Patients Requiring Renal Replacement Therapy...
Intradialytic HypotensionCardiac Event2 moreThis study was designed to compare the efficacy of BIA and physician adjustment to prevent intradialytic hypotension in patients with acute kidney injury who received renal replacement therapy. The investigators randomized 9 patients with acute kidney injury and volume overloaded who underwent acute hemodialysis for 45 sessions in Vajira hospital between October 2017 and February 2018. In physician adjust-group (control) estimate by physical examination and fluid balance record. Primary outcome was intradialytic hypotensive episode and secondary outcome was hemodialysis-related adverse events and other clinical outcome.
The Effect of Spironolactone on Acute Kidney Injury in Patients Undergoing Coronary Angiography...
Acute Kidney InjuryIHD1 morean interventional study to measure the possible effects of spironolactone ( an aldosterone antagonist) on the incidence of acute kidney injury after coronary angiography
PrevenTion of Contrast-inducEd nephroAThy With urinE Alkalinization
Acute Kidney InjuryContrast Media ReactionIntravascular administration of iodinated contrast media is an essential tool for cardiovascular imaging and percutaneous coronary interventions. Nonetheless, the increasing incidence of contrast-induced nephropathy (CIN) has become an important and prognostically relevant problem along with the spreading of diagnostic and interventional procedures. CIN is largely dependent on oxidative damage and represents a considerable cause of renal failure, being associated with prolonged hospitalization and significant morbidity/mortality. The most effective treatment strategy of this serious complication remains prevention, and several preventive measures have been extensively investigated in the last few years. Pre-procedural hydration is the best known and mostly accepted strategy. The administration of sodium bicarbonate (HCO3) has controversial effects, and is likely to be ineffective when the infused dose is unable to achieve adequate urine alkalinization. Since alkaline pH suppresses the production of free radicals, increasing urine pH would be an attractive goal for CIN prevention. In a randomized clinical trial the investigators will test the hypothesis that urine alkalinization with either oral or i.v. bicarbonate on top of hydration alone is the main determinant of CIN prevention in a population of patients with moderate or severe chronic kidney disease scheduled for coronary angiography and/or angioplasty. If the investigators, demonstrate non-significant differences in urine alkalinization (primary endpoint) and incidence of CIN (secondary endpoint) between the bicarbonate groups, a practical implication will be that oral administration is preferable for practical reasons over the administration of i.v. bicarbonate.
Nitric Oxide in Cardiopulmonary Bypass for Renal Protection in Cardiac Surgery
Coronary Artery DiseaseHeart Valve Diseases2 moreThis prospective randomized study evaluates the nephroprotective effects of exogenous nitric oxide delivered to the extracorporeal circulation circuit during cardiac surgery with cardiopulmonary bypass.