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An operation under general anesthesia as a risk factor for age-related cognitive decline: results from a large
J B Dijkstra1, M P Van Boxtel, P J Houx
1Brain and Behavior Research Institute, Maastricht University, The Netherlands.
Objective:
To evaluate the factor 'operation under general anesthesia' as a possible risk factor for age-related cognitive decline.
Design:
A retrospective, population-based, cross-sectional study.
Setting:
Maastricht Aging Study (MAAS), Maastricht, The Netherlands.
Participants:
1257 normal healthy subjects aged 24 to 86 years. Of the 1257 healthy subjects, 946 subjects appeared to have undergone at least one operation under general anesthesia.
Measurements:
The history of an operation under general anesthesia, number of operations, duration of anesthesia, cognitive performance, subjective health, and subjective memory were measured.
Results:
A history of an operation under general anesthesia, the number of operations, and the total duration of anesthesia significantly contributed to the number of subjective health-related complaints but did not predict cognitive performance or memory complaints. Subjects with a history of an operation under general anesthesia felt less healthy than subjects who had never undergone an operation under general anesthesia. No interactions with age were found.
Conclusion:
The present study found no support for the notion that a history of an operation under general anesthesia is a determinant or risk factor for accelerated age-related cognitive decline.