Key result
General anesthesia is associated with short-term cognitive dysfunction in the elderly, but evidence for long-term impairment or acceleration of dementia is inconsistent due to study heterogeneity.
Why the study?
Does general anesthesia cause long-term cognitive impairment or senile dementia in elderly subjects?
Population
Elderly subjects undergoing surgery
Design
Systematic_review
Follow-up
1 to 3 days (short-term) and longer-term
Authors
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Short-term cognitive risks warrant perioperative counseling in elderly patients; inconsistent long-term data leaves open dementia acceleration and requires standardized trials.
Systematic Review
Does general anesthesia cause long-term cognitive impairment or senile dementia in elderly subjects?
General anesthesia is associated with short-term cognitive dysfunction in the elderly, but its role in long-term cognitive impairment or dementia remains inconsistent and likely influenced by other factors.
Ritchie et al. (1997) conducted a systematic review in Cognitive impairment and senile dementia. General anesthesia was evaluated on Postoperative cognitive impairment and onset of senile dementia. General anesthesia is associated with short-term cognitive dysfunction in the elderly, but evidence for long-term impairment or acceleration of dementia is inconsistent due to study heterogeneity.
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