Neuropsychological sequalae of coronary artery bypass grafting.

Objectives: To assess neurocognitive function after Coronary Artery Bypass
Grafting (CABG); to compare and contrast pre- and post -operative test
results and to characterise the degree of change in neurocognitive profiles.To
identify neuropsychological patterns associated with different impairment
models such as hypoxia and stroke.
Methods: A comprehensive neuropsychological battery of tests was
administered to a small number of individuals undergoing CABG at pre and
post operative stage. In order to minimise practice effects, alternate tests were
employed for memory, verbal and visuo-spatial functions. Mood measures
were included.
Results: There were six variables that indicated significant changes. These
changes were in Processing Motor Speed, Verbal Executive function, Verbal,
Visual learning and Memory, Verbal functions and Visuospatial functions.
There was an overall improvement on mood after CABG.
Conclusions: There were different neuropsychological sequelae -considering
hypoxia and stroke impairment models- in the participants undergoing CABG
via Cardiopulmonary Bypass (CPB). Neuropsychological deficits and
improvements were identified.

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