Predictors of postoperative cognitive dysfunction
/Predictors of Postoperative Cognitive Dysfunction
For adults aged 65 years or older presenting for ambulatory surgery, 1 in 6 have preexisting cognitive impairment. There is a higher prevalence of cognitive impairment in patients with the following characteristics:
- Age over 85 years, Male 
- Lower socioeconomic and education levels 
- History of stroke 
- Preoperative functional dependence 
Although ambulatory surgery confers a lower risk of developing perioperative neurocognitive dysfunction than major procedures, these preexisting patient risk factors are more predictive.

