Outcomes using lower vs higher hemoglobin thresholds for red blood cell transfusion

摘要

THE OPTIMAL HEMOGLOBIN/ hematocrit criterion for transfusion remains controversial in several clinical settings.1 New evidence may best guide clinical practice. This updated Cochrane evidence includes 9 additional studies summarizing a total of 19 randomized controlled clinical trials involving more than 6000 patients that compared clinical outcomes between strategies using a higher vs lower he-moglobin/hematocrit threshold for red blood cell transfusion.2