Objective To detect anti cardiac muscle antibody(ACMA) in the patients after autotransfusion of hemothorax blood and to find out if it is safe to use hemothorax blood for autotransfusion.

• 目的 了解胸血自体回输后患者抗心肌抗体 (anticardiacmuscleantibody ,ACMA)的产生情况 ,为临床自体血回输工作的开展提供科学依据。