6Parikh SS, Chung F. Postoperative delirium in the elderly[J]. Anesth Analg, 1995,80 ( 6 ) : 1223.
7Gallinat J, Moiler H, Moser RL, et al. Postoperative delirium:risk factors, prophylaxis and treatment [ J ]. Anaesthesist,1999,48(8) :507.
8Saravay SM, Kaplowitz M, Kurek J, et al, How do delirium and dementia increase length of stay of elderly general medical inpatients[J]. Psychosomatics ,2004,45 ( 3 ) :235.
9Saravay SM,Kap LM,Kurek J et al.How do delirium and dementia increase length of stay of eldery general medical inpatients.Psychosomatics,2004; 45 (3):235
10Dodds C,Allison J.Postoperative cognitive deficit in the elderly surgical patient.Br J Anaesth,1998; 81 (3):449