Among adult patients undergoing cardiac surgery, infusion of amino acids reduces the occurrence of acute kidney injury (AKI), according to a study published online. Giovanni Landoni, M.D. and colleagues examined the efficacy of amino acids in reducing the occurrence of AKI after cardiac surgery. The analysis included 3,511 adult patients who were scheduled to undergo cardiac surgery with cardiopulmonary bypass who were randomly assigned to receive an intravenous infusion of either a balanced mixture of amino acids (2 g per kilogram of ideal body weight per day) or placebo (Ringer's solution) for up to three days. The researchers found that...