Cognitive decline after surgery and anaesthesia: correlation does not mean causation.

  title={Cognitive decline after surgery and anaesthesia: correlation does not mean causation.},
  author={A B Docherty and Susan D. Shenkin},
  volume={71 10},
Patients are keen to understand the risks and benefits of surgery. The focus has previously been largely on mortality risk and physical morbidity, but there is increasing concern about potential impact on cognitive ability in both the academic [1] and popular press [2], especially as increasing numbers of older people have surgery. Patients over 75 years already account for 23% of surgical procedures performed in the UK, and this is likely to increase due to increasing life expectancy and… CONTINUE READING
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