Transfus Apher Sci
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Intraoperation autologous blood transfusion is an effective method that is used in surgeries with an important blood loss. Several studies suggest that massive blood transfusion is one of the independent risks for postoperative cognitive dysfunction (POCD). Whether the autologous blood is one of the risk factor for POCD or not, we retrospectively examined the incidence of POCD and the probable risk factors in patients undergoing lumbar surgery in our hospital, with the same aged non-POCD patients as controls. ⋯ Autologous blood transfusion is not a risk factor for POCD in aged patients following lumbar surgery. Autologous blood is likely to be a better method of intraoperative blood transfusion during lumbar spine surgery.