Abstract: Background Perioperative blood conservation refers to the preservation and fully utilization of autoblood through various strategies, mitigating the need of allogeneic blood transfusion, also minimizing avoidable risks of transfusion-related adverse events. Objective Outlook new blood conservation innovations in the future, calling for the rational and prudent use of this scarce resource. Content Different methods of blood conservation nowadays is reviewed. Trend Despite the rapid development of advanced blood conservation techniques, they are not facilitated enough in clinic. New relative techniques and perioperative transfusion trigger would be researched.
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