Journal
GENERAL HOSPITAL PSYCHIATRY
Volume 35, Issue 2, Pages 117-121Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.genhosppsych.2012.12.008
Keywords
Cardiac surgery; Cardiopulmonary bypass; Cognitive decline; Cognitive function; Behavioral functional capacity
Categories
Funding
- European Social Fund [2105/101/1/722/2009]
- Motta di Livenza Hospital, Treviso
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Objective: The objective was to examine whether preexisting cognitive function rather than cognitive decline associated with intraoperative procedures may predict change in behavioral functional capacity in patients 1 year after cardiac surgery. Method: Forty-five patients completed a cognitive evaluation, including the Trail Making Test part B (TMT-B) for attention and psychomotor speed, the Memory with 10-s interference for working memory, the Digit Span test for short-term memory and the Instrumental Activities of Daily Living (IADLs) questionnaire for behavioral functional capacity, before surgery and 1 year after cardiac surgery. Results: Sixteen patients (36%) exhibited cognitive decline after cardiac surgery. Preoperative scores on TMT-B significantly predicted change in behavioral functional capacity as measured by IADLs (beta=0.371, P<.05), whereas the postoperative cognitive decline and intraoperative variables were unrelated to residualized change scores in IADLs (all Ps>.08). Conclusions: Preexisting cognitive dysfunctions as assessed by TMT-B can be a marker of preoperative brain dysfunction, which, in turn, in addition to brain damage caused by cardiac surgery procedures, may further predispose patients to poor behavioral functional capacity and outcome 1 year after surgery. Impaired cognitive functions before surgery should be considered when evaluating the effects of cardiac surgery procedures on long-term behavioral functional status of patients. (C) 2013 Elsevier Inc. All rights reserved.
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