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1.
Contemp Clin Trials ; 121: 106898, 2022 10.
Article in English | MEDLINE | ID: mdl-36038001

ABSTRACT

BACKGROUND: Postoperative acute kidney injury (AKI) is frequent in cardiac surgery patients. Its pathophysiology is complex and involves decreased renal perfusion. Preliminary clinical evidence in critically ill patients shows that amino acids infusion increases renal blood flow and may decrease the incidence and severity of AKI. We designed a study to evaluate the effectiveness of perioperative continuous infusion of amino acids in decreasing AKI. METHODS: This is a phase III, multi-center, randomized, double-blind, placebo-controlled trial. Adults undergoing cardiac surgery with cardiopulmonary bypass (CPB) are included. Patients are randomly assigned to receive either continuous infusion of a balanced mixture of amino acids in a dose of 2 g/kg ideal body weight/day or placebo (balanced crystalloid solution) from the operating room up to start of renal replacement therapy (RRT), or ICU discharge, or 72 h after the first dose. The primary outcome is the incidence of AKI during hospital stay defined by KDIGO (Kidney Disease: Improving Global Outcomes). Secondary outcomes include the need for, and duration of, RRT, mechanical ventilation; ICU and hospital length of stay; all-cause mortality at ICU, hospital discharge, 30, 90, and 180 days after randomization; quality of life at 180 days. Data will be analyzed in 3500 patients on an intention-to-treat basis. DISCUSSION: The trial is ongoing and currently recruiting. It will be one of the first randomized controlled studies to assess the relationship between amino acids use and kidney injury in cardiac surgery. If our hypothesis is confirmed, this practice could reduce morbidity in the studied population. STUDY REGISTRATION: This trial was registered on ClinicalTrials.gov with the trial identification NCT03709264 in October 2018.


Subject(s)
Acute Kidney Injury , Cardiac Surgical Procedures , Acute Kidney Injury/epidemiology , Acute Kidney Injury/etiology , Acute Kidney Injury/prevention & control , Adult , Amino Acids , Clinical Trials, Phase III as Topic , Crystalloid Solutions , Humans , Kidney , Multicenter Studies as Topic , Quality of Life , Randomized Controlled Trials as Topic
2.
Curr Opin Anaesthesiol ; 31(1): 50-54, 2018 Feb.
Article in English | MEDLINE | ID: mdl-29206698

ABSTRACT

PURPOSE OF REVIEW: The current article reviews the current evidence for continuing or discontinuing angiotensin-converting enzyme inhibitors (ACEIs) or angiotensin receptor blockers (ARBs) during the perioperative period. RECENT FINDINGS: In patients undergoing treatment of hypertension with ACEIs or ARBs, there are both benefits associated with continuing these medications during the perioperative period and higher risk for perioperative hypotension and its complications. SUMMARY: Since the introduction of ACEIs and ARBs into clinical practice, their use during the perioperative period has been controversial. Although these medications increase the risk of serious hypotension immediately after induction and maintenance of anesthesia, their use has numerous benefits, making it reasonable to continue them during perioperative period.


Subject(s)
Angiotensin-Converting Enzyme Inhibitors/adverse effects , Perioperative Care , Anesthesia , Angiotensin Receptor Antagonists/adverse effects , Humans , Hypotension/chemically induced
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