Neuropsychological sequalae of coronary artery bypass grafting.

Abstract

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