Abstract
Background: Medical outcomes following coronary artery bypass grafting (CABG) or percutaneous transluminal coronary angioplasty (PTCA) are similar, but few studies have compared neuropsychological outcomes after these procedures. Methods: A retrospective study compared detailed neurocognitive and psychosocial functioning in 32 patients (CABG, n = 16; PTCA, n = 16) aged 61 ± 6 years, 9–15 months after coronary revascularisation. Subjects were tested for executive functioning, speed of processing/attention and learning/memory, significant psychopathology (General Health Questionnaire, GHQ) and psychosocial functioning (Short Form (SF)-36 health survey). In the prospective study, 55 patients completed GHQ and SF-36 surveys, the day prior to and 6 months following PTCA. Results: There were no significant differences between the CABG and PTCA groups for neuropsychological or psychosocial end-points ( P > 0.20). Executive functioning in both groups, however, was worse than for healthy population controls ( P < 0.01). The PTCA patients were significantly more likely than CABG patients to have psychiatric abnormality (GHQ Score >4; P < 0.01). After PTCA, however, there was a significant improvement in the GHQ and SF-36 scores ( P < 0.05). Conclusions: Although executive function is often impaired after coronary revascularisation, neuropsychological status appears equivalent after CABG or PTCA. Psychiatric pathology is common in patients undergoing PTCA, but improves after this intervention.
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