Acute Kidney Injury in Patients Undergoing Contrast Exposure: VQ vs. CT
Acute Kidney InjuryPulmonary Embolism1 moreBoth, CT scans and VQ scans, are used by doctors to look for pulmonary embolism. The most common reason to order a VQ scan is to avoid the IV dye. The IV dye used for CT scans can cause kidney problems in some patients, called contrast-induced nephropathy or "CIN." This is a kidney problem that usually does not make patients feel any differently or change how they urinate. Most of the time, it can only be found by testing blood several days later. This kind of kidney problem can be very mild and some patients will never have any symptoms, rarely these problems can be severe. Some patients can also have similar kidney problems for many other reasons (reactions to medications, blood pressure problems, etc.) and can even happen in patients that do not get IV dye. That is why doctors are not sure exactly who will have these problems or if using a test that does not use IV dye can prevent this kidney problem. The VQ scan uses a different medication through the IV that is not IV dye and has not been linked to kidney problems. The purpose of this study is to learn if using the test that does not use IV dye (the "VQ scan") instead of a CT scan in some patients can help to prevent kidney problems.
Prevention of Acute Kidney Injury in Patients With NSTEMI
Non-ST Elevation Myocardial Infarction (NSTEMI)A randomized, double-blind, placebo-controlled, multi-center, phase 2 clinical study in patients with NSTEMI undergoing urgent coronary angiography. Approximately 220 patients with CKD and acute NSTEMI, who are scheduled for an urgent coronary angiography (within 72 hours after admission and/or diagnosis of NSTEMI).
The Biosonographic Index
Acute Kidney InjuryIn this exploratory study we explore the use of Shear Wave Elastography to differentiate between Acute Kidney Injury after vascular surgery and among the healthy population.
Low Dose Vasopressin vs Phenylephrine in Cardiac Surgery
Acute Kidney InjuryThis is a randomized, open label study to investigate vasopressin versus phenylephrine as a first line pressor in cardiac surgery. All patients >18 years of age presenting for coronary artery bypass graft (CABG), valve surgery, or combined CABG and valve surgery will be screened for inclusion. Patients with ejection fraction < 35%, > moderate pulmonary hypertension, > mild right ventricular dysfunction, a planned radial arterial graft, or circulatory arrest will be excluded. Patients will be randomized to receive either vasopressin or phenylephrine as the first line vasopressor during the perioperative period to maintain mean arterial blood pressure >65 mmhg. Primary outcome is acute kidney injury. Secondary outcomes are 30-day mortality, stroke, myocardial infarction, re-operation, sternal infection, atrial fibrillation, intensive care unit length of stay, and total vasopressor hours.
Anesthesia and Acute Kidney Injury After Nephrectomy
NephrectomyThis study investigates the influence of type of anesthesia on postoperative renal dysfunction in patients undergoing nephrectomy. The participants will be allocated to either the group receiving the total intravenous anesthesia (TIVA) using propofol or the group receiving the inhaled anesthetics using desflurane.
Acute Kidney Injury in Intensive Care Patients
Acute Renal InjuryCritical IllnessThe goal of this prospective observational study is to evaluate the incidence, risk factors, and outcomes for development of acute kidney injury (AKI) in intensive care pateints. The main questions it aims to answer are: What is the incidence of acute kidney injury in intensive care patients? What are risk factors for development of acute kidney injury? All adult patients admitted to the ICU with a stay of 48 h or more will be included in the study.
Evaluation of Renal Resistive Index in Patients With Controlled Hypotension
Acute Kidney InjuryHypotension4 moreIn recent studies, it has been reported that the renal resistive index is effective in detecting postoperative acute kidney injury in the early period. This study aims to evaluate the preoperative and postoperative renal resistive index variation with intraoperative controlled hypotension and research the renal resistive index's utility in the early detection of renal dysfunction that may develop after surgery.
Angiopoietin and Adverse Outcomes in Cardiac Surgery
Cardiac SurgeryAcute Kidney InjuryCardiac surgery and cardiopulmonary bypass can lead to systemic organ failure trough excess inflammation and endothelial injury. The angiopoietin family represented by angiopoietin 1 and 2 can reflect endothelial injury by a decrease in angiopoietin 1 and an increase in angiopoietin 2. The investigators hypothesized that angiopoietin dysregulation could reflect organ failure related to cardiac surgery. The purpose of this project is to assess the association between angiopoietin dysregulation and adverse outcomes on cardiac surgery.
A Predictive Score System for AKI Following Pediatric Cardiac Surgery
Congenital Heart DiseaseSurgery--Complications1 moreAcute kidney injury (AKI) has been recognized as a typical post- operative complication among the children undergoing surgical repair of a congenital cardiac defect. It is associated with increased morbidity and mortality in the intensive care unit and a higher utilization of hospital resources. However, how to precisely identify those who have greater hazard to encounter postoperative AKI seems ambiguous.
Evaluation of Candidate Biomarkers to Predict Disease Severity and Acute Kidney Injury in Sepsis...
SepsisSeptic Shock1 moreInvestigators predict that the information that can be obtained in terms of renal functions before clinical development in sepsis patients can be valuable in terms of guiding treatment algorithms, planning renal replacement therapies and using drugs that are toxic to the kidneys.