Our findings have implications for studies of the causes of cognitive decline and, in clinical practice, for the information given to patients before surgery.
No significant difference was found in the incidence of cognitive dysfunction 3 months after either general or regional anaesthesia in elderly patients. Thus, there seems to be no causative relationship between general anaesthesia and long-term POCD. Regional anaesthesia may decrease mortality and the incidence of POCD early after surgery.
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