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Published in: Annals of Behavioral Medicine 4/2016

Open Access 01-08-2016 | Original Article

Pre-Operative Cognitive Functioning and Inflammatory and Neuroendocrine Responses to Cardiac Surgery

Authors: Lydia Poole, PhD, Amy Ronaldson, MSc, Tara Kidd, PhD, Elizabeth Leigh, PhD, Marjan Jahangiri, FRCS CTh, Andrew Steptoe, DSc

Published in: Annals of Behavioral Medicine | Issue 4/2016

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Abstract

Background

Cognitive functioning is linked to cardiac mortality and morbidity, but the mechanisms underlying this relationship are unclear.

Purpose

To examine the relationship between pre-operative cognitive functioning and post-operative inflammatory and neuroendocrine responses in patients undergoing coronary artery bypass graft (CABG) surgery.

Methods

One-hundred ninety-three outpatients were screened to assess their cognitive function using the Montreal Cognitive Assessment (MoCA) on average 30 days prior to CABG surgery and provided blood samples for the measurement of interleukin (IL)-6 and C-reactive protein (CRP) and saliva samples for the measurement of diurnal cortisol. Participants were followed-up 4–8 days following surgery for the repeat measurement of IL-6 and CRP and 60 days after surgery for the measurement of diurnal salivary cortisol.

Results

Patients with low cognitive function (MoCA < 26) prior to surgery reached higher IL-6 concentrations in the days after surgery (β = −0.212, p = 0.021) and had greater cortisol output across the day 2 months after surgery (β = −0.179, p = 0.044).

Conclusions

Low cognitive functioning is associated with a more negative pattern of biological response to surgery, indicative of poorer physical recovery. These pathways may contribute to the links between cognitive function and cardiovascular pathology.
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Metadata
Title
Pre-Operative Cognitive Functioning and Inflammatory and Neuroendocrine Responses to Cardiac Surgery
Authors
Lydia Poole, PhD
Amy Ronaldson, MSc
Tara Kidd, PhD
Elizabeth Leigh, PhD
Marjan Jahangiri, FRCS CTh
Andrew Steptoe, DSc
Publication date
01-08-2016
Publisher
Springer US
Published in
Annals of Behavioral Medicine / Issue 4/2016
Print ISSN: 0883-6612
Electronic ISSN: 1532-4796
DOI
https://doi.org/10.1007/s12160-016-9779-7

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